Articles | Volume 10, issue 2
https://doi.org/10.5194/soil-10-859-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/soil-10-859-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Original research article
| 
04 Dec 2024
Original research article |
| 04 Dec 2024
| 04 Dec 2024
Freeze–thaw processes correspond to the protection–loss of soil organic carbon through regulating pore structure of aggregates in alpine ecosystems
Ruizhe Wang
State Key Laboratory of Earth Surface Process and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
School of Natural Resources, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
Xia Hu
CORRESPONDING AUTHOR
State Key Laboratory of Earth Surface Process and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
School of Natural Resources, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
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An ensemble estimate of Australian soil organic carbon using machine learning and process-based modelling
What is the stability of additional organic carbon stored thanks to alternative cropping systems and organic waste product application? A multi-method evaluation
Improving measurements of microbial growth, death, and turnover by accounting for extracellular DNA in soils
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Effect of colloidal particle size on physicochemical properties and aggregation behaviors of two alkaline soils
Depth-dependence of soil organic carbon additional storage capacity in different soil types by the 2050 target for carbon neutrality
Mixed signals: interpreting mixing patterns of different soil bioturbation processes through luminescence and numerical modelling
Biochar reduces early-stage mineralization rates of plant residues more in coarse than fine-texture soils – an artificial soil approach
Shifts in controls and abundance of particulate and mineral-associated organic matter fractions among subfield yield stability zones
The six rights of how and when to test for soil C saturation
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Organic matters, but inorganic matters too: column examination of elevated mercury sorption on low organic matter aquifer material using concentrations and stable isotope ratios
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Soil organic carbon stocks did not change after 130 years of afforestation on a former Swiss Alpine pasture
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Semantics about soil organic carbon storage: DATA4C+, a comprehensive thesaurus and classification of management practices in agriculture and forestry
Forest liming in the face of climate change: the implications of restorative liming for soil organic carbon in mature German forests
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Land use impact on carbon mineralization in well aerated soils is mainly explained by variations of particulate organic matter rather than of soil structure
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Phosphorus dynamics during early soil development in a cold desert: insights from oxygen isotopes in phosphate
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Heterotrophic soil respiration and carbon cycling in geochemically distinct African tropical forest soils
Soil organic carbon mobility in equatorial podzols: soil column experiments
Microbial activity responses to water stress in agricultural soils from simple and complex crop rotations
The role of geochemistry in organic carbon stabilization against microbial decomposition in tropical rainforest soils
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Modelling of long-term Zn, Cu, Cd and Pb dynamics from soils fertilised with organic amendments
Stable isotope signatures of soil nitrogen on an environmental–geomorphic gradient within the Congo Basin
Iron and aluminum association with microbially processed organic matter via meso-density aggregate formation across soils: organo-metallic glue hypothesis
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Switch of fungal to bacterial degradation in natural, drained and rewetted oligotrophic peatlands reflected in δ15N and fatty acid composition
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Laura Kuusemets, Ülo Mander, Jordi Escuer-Gatius, Alar Astover, Karin Kauer, Kaido Soosaar, and Mikk Espenberg
SOIL, 11, 1–15, https://doi.org/10.5194/soil-11-1-2025, https://doi.org/10.5194/soil-11-1-2025, 2025
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We investigated relationships between mineral nitrogen (N) fertilisation rates and additional manure amendment with different crop types through an analysis of soil environmental characteristics and microbiomes, soil N2O and N2 emissions as well as biomass production. The results show that wheat grew well at a fertilisation rate of 80 kg N ha−1, and newly introduced sorghum showed good potential for cultivation in temperate climates.
Vítězslav Vlček, David Juřička, Martin Valtera, Helena Dvořáčková, Vojtěch Štulc, Michaela Bednaříková, Jana Šimečková, Peter Váczi, Miroslav Pohanka, Pavel Kapler, Miloš Barták, and Vojtěch Enev
SOIL, 10, 813–826, https://doi.org/10.5194/soil-10-813-2024, https://doi.org/10.5194/soil-10-813-2024, 2024
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The aim of this work was to evaluate the correlation between soil organic carbon (SOC) and various soil properties. Nine plots across an altitudinal range from 10 to 320 m were investigated in the deglaciated region of James Ross Island (Antarctica). Our results indicate that the primary factor influencing the SOC content is likely not altitude or coarse-fraction content; rather, other hard-to-quantify factors, such as the presence of liquid water during the summer period, impact SOC content.
Amicie A. Delahaie, Lauric Cécillon, Marija Stojanova, Samuel Abiven, Pierre Arbelet, Dominique Arrouays, François Baudin, Antonio Bispo, Line Boulonne, Claire Chenu, Jussi Heinonsalo, Claudy Jolivet, Kristiina Karhu, Manuel Martin, Lorenza Pacini, Christopher Poeplau, Céline Ratié, Pierre Roudier, Nicolas P. A. Saby, Florence Savignac, and Pierre Barré
SOIL, 10, 795–812, https://doi.org/10.5194/soil-10-795-2024, https://doi.org/10.5194/soil-10-795-2024, 2024
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This paper compares the soil organic carbon fractions obtained from a new thermal fractionation scheme and a well-known physical fractionation scheme on an unprecedented dataset of French topsoil samples. For each fraction, we use a machine learning model to determine its environmental drivers (pedology, climate, and land cover). Our results suggest that these two fractionation schemes provide different fractions, which means they provide complementary information.
Lingfei Wang, Gab Abramowitz, Ying-Ping Wang, Andy Pitman, and Raphael A. Viscarra Rossel
SOIL, 10, 619–636, https://doi.org/10.5194/soil-10-619-2024, https://doi.org/10.5194/soil-10-619-2024, 2024
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Effective management of soil organic carbon (SOC) requires accurate knowledge of its distribution and factors influencing its dynamics. We identify the importance of variables in spatial SOC variation and estimate SOC stocks in Australia using various models. We find there are significant disparities in SOC estimates when different models are used, highlighting the need for a critical re-evaluation of land management strategies that rely on the SOC distribution derived from a single approach.
Tchodjowiè P. I. Kpemoua, Pierre Barré, Sabine Houot, François Baudin, Cédric Plessis, and Claire Chenu
SOIL, 10, 533–549, https://doi.org/10.5194/soil-10-533-2024, https://doi.org/10.5194/soil-10-533-2024, 2024
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Several agroecological management options foster soil organic C stock accrual. What is behind the persistence of this "additional" C? We used three different methodological approaches and >20 years of field experiments under temperate conditions to find out. We found that the additional C is less stable at the pluri-decadal scale than the baseline C. This highlights the need to maintain agroecological practices to keep these carbon stocks at a high level over time.
Jörg Schnecker, Theresa Böckle, Julia Horak, Victoria Martin, Taru Sandén, and Heide Spiegel
SOIL, 10, 521–531, https://doi.org/10.5194/soil-10-521-2024, https://doi.org/10.5194/soil-10-521-2024, 2024
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Microbial processes are driving the formation and decomposition of soil organic matter. In contrast to respiration and growth, microbial death rates currently lack distinct methods to be determined. Here, we propose a new approach to measure microbial death rates. This new approach to determine microbial death rates as well as dynamics of intracellular and extracellular DNA separately will help to improve concepts and models of C dynamics in soils in the future.
Laura Hondroudakis, Peter M. Kopittke, Ram C. Dalal, Meghan Barnard, and Zhe H. Weng
SOIL, 10, 451–465, https://doi.org/10.5194/soil-10-451-2024, https://doi.org/10.5194/soil-10-451-2024, 2024
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Land use change to cropping is known to greatly reduced organic carbon and nitrogen concentrations, but much remains unknown about the mechanisms influencing their persistence in soil. In a soil from a subtropical Australian cropping system, we demonstrate that organic carbon is protected by mineral associations but not particulate forms. Importantly, we also show that reversion from cropping to pasture or plantation can partially restore this organic carbon.
Qintana Si, Kangli Chen, Bin Wei, Yaowen Zhang, Xun Sun, and Junyi Liang
SOIL, 10, 441–450, https://doi.org/10.5194/soil-10-441-2024, https://doi.org/10.5194/soil-10-441-2024, 2024
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Our soil incubation experiment demonstrates that dissolved labile carbon substrate is a significant contributor to the soil particulate organic carbon pool. Dissolved carbon flow to particulate organic carbon is regulated by microbial biomass carbon and soil texture. The soil carbon model underestimates soil carbon sequestration when carbon flow from dissolved substrates to particulate organic carbon through microbial processes is not considered.
Yuyang Yan, Xinran Zhang, Chenyang Xu, Junjun Liu, Feinan Hu, and Zengchao Geng
EGUsphere, https://doi.org/10.5194/egusphere-2024-1266, https://doi.org/10.5194/egusphere-2024-1266, 2024
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With decreasing colloidal particle diameter, the total carbon content, organic carbon, organic functional groups content and illite content all increased. The critical coagulation concentrations (CCCs) values of soil colloids followed the descending order of d < 100 nm, d < 1 μm, d < 2 μm, thus soil nanoparticles exhibited strongest suspension stability.
Clémentine Chirol, Geoffroy Séré, Paul-Olivier Redon, Claire Chenu, and Delphine Derrien
EGUsphere, https://doi.org/10.5194/egusphere-2024-1284, https://doi.org/10.5194/egusphere-2024-1284, 2024
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This work maps both current soil organic carbon (SOC) stocks and the SOC that can be realistically added to soils over 25 years under a scenario of management strategies promoting plant productivity. We consider how soil type influences current and maximum SOC stocks regionally. Over 25 years, land use and management have the strongest influence on SOC accrual, but certain soil types have disproportionate SOC stocks at depth that need to be preserved.
W. Marijn van der Meij, Svenja Riedesel, and Tony Reimann
EGUsphere, https://doi.org/10.5194/egusphere-2024-1466, https://doi.org/10.5194/egusphere-2024-1466, 2024
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Soil mixing (bioturbation) plays a key role in soil functions, but the underlying processes are poorly understood and difficult to quantify. In this study, we use luminescence, a light-sensitive soil mineral property, and numerical models to better understand different types of bioturbation. We provide a conceptual model that helps to determine what type of bioturbation processes occur in a soil and a numerical model that can derive quantitative process rates from luminescence measurements.
Thiago M. Inagaki, Simon Weldon, Franziska B. Bucka, Eva Farkas, and Daniel P. Rasse
EGUsphere, https://doi.org/10.5194/egusphere-2024-1143, https://doi.org/10.5194/egusphere-2024-1143, 2024
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Here, we investigated how biochar, a potential C sequestration tool, affects early carbon storage in different soil types. We created artificial soils to isolate the impact of soil texture. We found that biochar significantly reduces plant residue’s breakdown in all soil textures, but mainly sandy soils, which naturally hold less carbon. This suggests biochar could be a valuable tool for improving soil health, especially in sandy soils.
Sam J. Leuthold, Jocelyn M. Lavallee, Bruno Basso, William F. Brinton, and M. Francesca Cotrufo
SOIL, 10, 307–319, https://doi.org/10.5194/soil-10-307-2024, https://doi.org/10.5194/soil-10-307-2024, 2024
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We examined physical soil organic matter fractions to understand their relationship to temporal variability in crop yield at field scale. We found that interactions between crop productivity, topography, and climate led to variability in soil organic matter stocks among different yield stability zones. Our results imply that linkages between soil organic matter and yield stability may be scale-dependent and that particulate organic matter may be an indicator of unstable areas within croplands.
Johan Six, Sebastian Doetterl, Moritz Laub, Claude R. Müller, and Marijn Van de Broek
SOIL, 10, 275–279, https://doi.org/10.5194/soil-10-275-2024, https://doi.org/10.5194/soil-10-275-2024, 2024
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Soil C saturation has been tested in several recent studies and led to a debate about its existence. We argue that, to test C saturation, one should pay attention to six fundamental principles: the right measures, the right units, the right dispersive energy and application, the right soil type, the right clay type, and the right saturation level. Once we take care of those six rights across studies, we find support for a maximum of C stabilized by minerals and thus soil C saturation.
Yuri Suzuki, Syuntaro Hiradate, Jun Koarashi, Mariko Atarashi-Andoh, Takumi Yomogida, Yuki Kanda, and Hirohiko Nagano
EGUsphere, https://doi.org/10.5194/egusphere-2024-419, https://doi.org/10.5194/egusphere-2024-419, 2024
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We incubated 10 Japanese soils to study CO2 release under drying-rewetting cycles (DWCs). CO2 release was increased by DWCs among all soils, showing soil-by-soil variations in CO2 release increase magnitude. Organo-Al complex was the primary predictor for the increase magnitude, suggesting vulnerability of carbon protection by reactive minerals against DWCs. Microbial biomass decrease by DWCs was also suggested, although its linkage with the CO2 release increase is unclear yet.
Sergio Aranda-Barranco, Penélope Serrano-Ortiz, Andrew S. Kowalski, and Enrique P. Sánchez-Cañete
EGUsphere, https://doi.org/10.5194/egusphere-2024-848, https://doi.org/10.5194/egusphere-2024-848, 2024
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This study investigated soil respiration and the main factors involved in a semiarid environment (olive grove). For this purpose, one year of automatic multi-chamber measurements were used, accompanied by ecosystem respiration data obtained using the eddy covariance technique. The soil respiration annual balance, Q10 parameter, rain pulses, and spatial and temporal variability of soil respiration are presented in this manuscript.
Norman Gentsch, Florin Laura Riechers, Jens Boy, Dörte Schweneker, Ulf Feuerstein, Diana Heuermann, and Georg Guggenberger
SOIL, 10, 139–150, https://doi.org/10.5194/soil-10-139-2024, https://doi.org/10.5194/soil-10-139-2024, 2024
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Cover crops have substantial impacts on soil properties, but so far it is not clear how long a legacy effect of cover cropping will remain in the soil. We found that cover crops attenuate negative effects on soil structure that come from soil cultivation. The combination of plants with different litter qualities and rhizodeposits in biodiverse cover crop mixtures can improve the positive effects of cover cropping on soil structure amelioration.
Che-Jen Hsiao, Pedro A. M. Leite, Ayumi Hyodo, and Thomas W. Boutton
SOIL, 10, 93–108, https://doi.org/10.5194/soil-10-93-2024, https://doi.org/10.5194/soil-10-93-2024, 2024
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Tree cover has increased in grasslands worldwide, with juniper and oak trees expanding in the southern Great Plains, USA. Here, we examine how these changes interact with geology to affect soil C, N, and P storage. Soil concentrations of these elements were significantly higher under trees than grasslands but increased more under trees growing on Edwards soils. Our results suggest that geology and vegetation change should be considered when predicting soil storage in dryland ecosystems globally.
David S. McLagan, Carina Esser, Lorenz Schwab, Jan G. Wiederhold, Jan-Helge Richard, and Harald Biester
SOIL, 10, 77–92, https://doi.org/10.5194/soil-10-77-2024, https://doi.org/10.5194/soil-10-77-2024, 2024
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Sorption of mercury in soils, aquifer materials, and sediments is primarily linked to organic matter. Using column experiments, mercury concentration, speciation, and stable isotope analyses, we show that large quantities of mercury in soil water and groundwater can be sorbed to inorganic minerals; sorption to the solid phase favours lighter isotopes. Data provide important insights on the transport and fate of mercury in soil–groundwater systems and particularly in low-organic-matter systems.
Orly Mendoza, Stefaan De Neve, Heleen Deroo, Haichao Li, Astrid Françoys, and Steven Sleutel
EGUsphere, https://doi.org/10.5194/egusphere-2024-107, https://doi.org/10.5194/egusphere-2024-107, 2024
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Farmers frequently apply fresh organic matter such as crop residues to soil to boost its carbon content. Yet, one burning question remains: Does the quantity of applied organic matter affect its decomposition and that of native soil organic matter? Our experiments indicate that smaller application doses might deplete soil organic matter more rapidly. In contrast, applying intermediate or high doses might be a promising strategy for maintaining it.
Marketa Stepanova, Martin Novak, Bohuslava Cejkova, Ivana Jackova, Frantisek Buzek, Frantisek Veselovsky, Jan Curik, Eva Prechova, Arnost Komarek, and Leona Bohdalkova
SOIL, 9, 623–640, https://doi.org/10.5194/soil-9-623-2023, https://doi.org/10.5194/soil-9-623-2023, 2023
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Biological N2 fixation helps to sustain carbon accumulation in peatlands and to remove CO2 from the atmosphere. Changes in N2 fixation may affect the dynamics of global change. Increasing inputs of reactive N from air pollution should lead to downregulation of N2 fixation. Data from three N-polluted peat bogs show an interplay of N2-fixation rates with 10 potential drivers of this process. N2 fixation was measurable only at one site characterized by high phosphorus and low sulfate availability.
Tatjana C. Speckert, Jeannine Suremann, Konstantin Gavazov, Maria J. Santos, Frank Hagedorn, and Guido L. B. Wiesenberg
SOIL, 9, 609–621, https://doi.org/10.5194/soil-9-609-2023, https://doi.org/10.5194/soil-9-609-2023, 2023
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Soil organic carbon (SOC) is key player in the global carbon cycle. Afforestation on pastures potentially alters organic matter input and SOC sequestration. We investigated the effects of a Picea abies L. afforestation sequence (0 to 130 years) on a former subalpine pasture on SOC stocks and dynamics. We found no difference in the SOC stock after 130 years of afforestation and thus no additional SOC sequestration. SOC composition was altered due to a modified SOC input following afforestation.
Lauren M. Gillespie, Nathalie Y. Triches, Diego Abalos, Peter Finke, Sophie Zechmeister-Boltenstern, Stephan Glatzel, and Eugenio Díaz-Pinés
SOIL, 9, 517–531, https://doi.org/10.5194/soil-9-517-2023, https://doi.org/10.5194/soil-9-517-2023, 2023
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Forest soil is potentially an important source or sink of greenhouse gases (CO2, N2O, and CH4), but this is affected by soil conditions. We studied how land inclination and soil/litter properties influence the flux of these gases. CO2 and N2O were more affected by inclination than CH4; all were affected by soil/litter properties. This study underlines the importance of inclination and soil/litter properties in predicting greenhouse gas fluxes from forest soil and potential source–sink balance.
Sastrika Anindita, Peter Finke, and Steven Sleutel
SOIL, 9, 443–459, https://doi.org/10.5194/soil-9-443-2023, https://doi.org/10.5194/soil-9-443-2023, 2023
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This study investigated how land use, through its impact on soil geochemistry, might indirectly control soil organic carbon (SOC) content in tropical volcanic soils in Indonesia. We analyzed SOC fractions, substrate-specific mineralization, and net priming of SOC. Our results indicated that the enhanced formation of aluminum (hydr)oxides promoted aggregation and physical occlusion of OC, which is consistent with the lesser degradability of SOC in agricultural soils.
Amicie A. Delahaie, Pierre Barré, François Baudin, Dominique Arrouays, Antonio Bispo, Line Boulonne, Claire Chenu, Claudy Jolivet, Manuel P. Martin, Céline Ratié, Nicolas P. A. Saby, Florence Savignac, and Lauric Cécillon
SOIL, 9, 209–229, https://doi.org/10.5194/soil-9-209-2023, https://doi.org/10.5194/soil-9-209-2023, 2023
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We characterized organic matter in French soils by analysing samples from the French RMQS network using Rock-Eval thermal analysis. We found that thermal analysis is appropriate to characterize large set of samples (ca. 2000) and provides interpretation references for Rock-Eval parameter values. This shows that organic matter in managed soils is on average more oxidized and more thermally stable and that some Rock-Eval parameters are good proxies for organic matter biogeochemical stability.
Britta Greenshields, Barbara von der Lühe, Harold J. Hughes, Christian Stiegler, Suria Tarigan, Aiyen Tjoa, and Daniela Sauer
SOIL, 9, 169–188, https://doi.org/10.5194/soil-9-169-2023, https://doi.org/10.5194/soil-9-169-2023, 2023
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Silicon (Si) research could provide complementary measures in sustainably cultivating oil-palm monocultures. Our study shows that current oil-palm management practices and topsoil erosion on oil-palm plantations in Indonesia have caused a spatial distribution of essential Si pools in soil. A lack of well-balanced Si levels in topsoil could negatively affect crop yield and soil fertility for future replanting at the same plantation site. Potential measures are suggested to maintain Si cycling.
Kenji Fujisaki, Tiphaine Chevallier, Antonio Bispo, Jean-Baptiste Laurent, François Thevenin, Lydie Chapuis-Lardy, Rémi Cardinael, Christine Le Bas, Vincent Freycon, Fabrice Bénédet, Vincent Blanfort, Michel Brossard, Marie Tella, and Julien Demenois
SOIL, 9, 89–100, https://doi.org/10.5194/soil-9-89-2023, https://doi.org/10.5194/soil-9-89-2023, 2023
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This paper presents a first comprehensive thesaurus for management practices driving soil organic carbon (SOC) storage. So far, a comprehensive thesaurus of management practices in agriculture and forestry has been lacking. It will help to merge datasets, a promising way to evaluate the impacts of management practices in agriculture and forestry on SOC. Identifying the drivers of SOC stock changes is of utmost importance to contribute to global challenges (climate change, food security).
Oliver van Straaten, Larissa Kulp, Guntars O. Martinson, Dan Paul Zederer, and Ulrike Talkner
SOIL, 9, 39–54, https://doi.org/10.5194/soil-9-39-2023, https://doi.org/10.5194/soil-9-39-2023, 2023
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Across northern Europe, millions of hectares of forest have been limed to counteract soil acidification and restore forest ecosystems. In this study, we investigated how restorative liming affects the forest soil organic carbon (SOC) stocks and correspondingly ecosystem greenhouse gas fluxes. We found that the magnitude and direction of SOC stock changes hinge on the inherent site characteristics, namely, forest type, soil texture, initial soil pH, and initial soil SOC stocks (before liming).
Junxiao Pan, Jinsong Wang, Dashuan Tian, Ruiyang Zhang, Yang Li, Lei Song, Jiaming Yang, Chunxue Wei, and Shuli Niu
SOIL, 8, 687–698, https://doi.org/10.5194/soil-8-687-2022, https://doi.org/10.5194/soil-8-687-2022, 2022
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We found that climatic, edaphic, plant and microbial variables jointly affect soil inorganic carbon (SIC) stock in Tibetan grasslands, and biotic factors have a larger contribution than abiotic factors to the variation in SIC stock. The effects of microbial and plant variables on SIC stock weakened with soil depth, while the effects of edaphic variables strengthened. The contrasting responses and drivers of SIC stock highlight differential mechanisms underlying SIC preservation with soil depth.
Yifeng Zhang, Sen Dou, Batande Sinovuyo Ndzelu, Rui Ma, Dandan Zhang, Xiaowei Zhang, Shufen Ye, and Hongrui Wang
SOIL, 8, 605–619, https://doi.org/10.5194/soil-8-605-2022, https://doi.org/10.5194/soil-8-605-2022, 2022
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How to effectively convert corn straw into humic substances and return them to the soil in a relatively stable form is a concerning topic. Through a 360 d field experiment under equal carbon (C) mass, we found that return of the fermented corn straw treated with Trichoderma reesei to the field is more valuable and conducive to increasing easily oxidizable organic C, humus C content, and carbon pool management index than the direct application of corn straw.
Ling Mao, Shaoming Ye, and Shengqiang Wang
SOIL, 8, 487–505, https://doi.org/10.5194/soil-8-487-2022, https://doi.org/10.5194/soil-8-487-2022, 2022
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Soil ecological stoichiometry offers a tool to explore the distribution, cycling, limitation, and balance of chemical elements. This study improved the understanding of soil organic carbon and nutrient dynamics in tea plantation ecosystems and also provided supplementary information for soil ecological stoichiometry in global terrestrial ecosystems.
Steffen Schlüter, Tim Roussety, Lena Rohe, Vusal Guliyev, Evgenia Blagodatskaya, and Thomas Reitz
SOIL, 8, 253–267, https://doi.org/10.5194/soil-8-253-2022, https://doi.org/10.5194/soil-8-253-2022, 2022
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We combined microstructure analysis via X-ray CT with carbon mineralization analysis via respirometry of intact soil cores from different land uses. We found that the amount of particulate organic matter (POM) exerted a dominant control on carbon mineralization in well-aerated topsoils, whereas soil moisture and macroporosity did not play role. This is because carbon mineralization mainly occurs in microbial hotspots around degrading POM, where it is decoupled from conditions of the bulk soil.
Roberta Pulcher, Enrico Balugani, Maurizio Ventura, Nicolas Greggio, and Diego Marazza
SOIL, 8, 199–211, https://doi.org/10.5194/soil-8-199-2022, https://doi.org/10.5194/soil-8-199-2022, 2022
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Biochar, a solid product from the thermal conversion of biomass, can be used as a climate change mitigation strategy, since it can sequester carbon from the atmosphere and store it in the soil. The aim of this study is to assess the potential of biochar as a mitigation strategy in the long term, by modelling the results obtained from an 8-year field experiment. As far as we know, this is the first time that a model for biochar degradation has been validated with long-term field data.
Daniel Rath, Nathaniel Bogie, Leonardo Deiss, Sanjai J. Parikh, Daoyuan Wang, Samantha Ying, Nicole Tautges, Asmeret Asefaw Berhe, Teamrat A. Ghezzehei, and Kate M. Scow
SOIL, 8, 59–83, https://doi.org/10.5194/soil-8-59-2022, https://doi.org/10.5194/soil-8-59-2022, 2022
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Storing C in subsoils can help mitigate climate change, but this requires a better understanding of subsoil C dynamics. We investigated changes in subsoil C storage under a combination of compost, cover crops (WCC), and mineral fertilizer and found that systems with compost + WCC had ~19 Mg/ha more C after 25 years. This increase was attributed to increased transport of soluble C and nutrients via WCC root pores and demonstrates the potential for subsoil C storage in tilled agricultural systems.
Zuzana Frkova, Chiara Pistocchi, Yuliya Vystavna, Katerina Capkova, Jiri Dolezal, and Federica Tamburini
SOIL, 8, 1–15, https://doi.org/10.5194/soil-8-1-2022, https://doi.org/10.5194/soil-8-1-2022, 2022
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Phosphorus (P) is essential for life. We studied microbial processes driving the P cycle in soils developed on the same rock but with different ages (0–100 years) in a cold desert. Compared to previous studies under cold climate, we found much slower weathering of P-containing minerals of soil development, likely due to aridity. However, microbes dominate short-term dynamics and progressively redistribute P from the rock into more available forms, making it available for plants at later stages.
Carrie L. Thomas, Boris Jansen, E. Emiel van Loon, and Guido L. B. Wiesenberg
SOIL, 7, 785–809, https://doi.org/10.5194/soil-7-785-2021, https://doi.org/10.5194/soil-7-785-2021, 2021
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Plant organs, such as leaves, contain a variety of chemicals that are eventually deposited into soil and can be useful for studying organic carbon cycling. We performed a systematic review of available data of one type of plant-derived chemical, n-alkanes, to determine patterns of degradation or preservation from the source plant to the soil. We found that while there was degradation in the amount of n-alkanes from plant to soil, some aspects of the chemical signature were preserved.
Benjamin Bukombe, Peter Fiener, Alison M. Hoyt, Laurent K. Kidinda, and Sebastian Doetterl
SOIL, 7, 639–659, https://doi.org/10.5194/soil-7-639-2021, https://doi.org/10.5194/soil-7-639-2021, 2021
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Through a laboratory incubation experiment, we investigated the spatial patterns of specific maximum heterotrophic respiration in tropical African mountain forest soils developed from contrasting parent material along slope gradients. We found distinct differences in soil respiration between soil depths and geochemical regions related to soil fertility and the chemistry of the soil solution. The topographic origin of our samples was not a major determinant of the observed rates of respiration.
Patricia Merdy, Yves Lucas, Bruno Coulomb, Adolpho J. Melfi, and Célia R. Montes
SOIL, 7, 585–594, https://doi.org/10.5194/soil-7-585-2021, https://doi.org/10.5194/soil-7-585-2021, 2021
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Transfer of organic C from topsoil to deeper horizons and the water table is little documented, especially in equatorial environments, despite high primary productivity in the evergreen forest. Using column experiments with podzol soil and a percolating solution sampled in an Amazonian podzol area, we show how the C-rich Bh horizon plays a role in natural organic matter transfer and Si, Fe and Al mobility after a kaolinitic layer transition, thus giving insight to the genesis of tropical podzol.
Jörg Schnecker, D. Boone Meeden, Francisco Calderon, Michel Cavigelli, R. Michael Lehman, Lisa K. Tiemann, and A. Stuart Grandy
SOIL, 7, 547–561, https://doi.org/10.5194/soil-7-547-2021, https://doi.org/10.5194/soil-7-547-2021, 2021
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Drought and flooding challenge agricultural systems and their management globally. Here we investigated the response of soils from long-term agricultural field sites with simple and diverse crop rotations to either drought or flooding. We found that irrespective of crop rotation complexity, soil and microbial properties were more resistant to flooding than to drought and highly resilient to drought and flooding during single or repeated stress pulses.
Mario Reichenbach, Peter Fiener, Gina Garland, Marco Griepentrog, Johan Six, and Sebastian Doetterl
SOIL, 7, 453–475, https://doi.org/10.5194/soil-7-453-2021, https://doi.org/10.5194/soil-7-453-2021, 2021
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In deeply weathered tropical rainforest soils of Africa, we found that patterns of soil organic carbon stocks differ between soils developed from geochemically contrasting parent material due to differences in the abundance of organo-mineral complexes, the presence/absence of chemical stabilization mechanisms of carbon with minerals and the presence of fossil organic carbon from sedimentary rocks. Physical stabilization mechanisms by aggregation provide additional protection of soil carbon.
Fabian Kalks, Gabriel Noren, Carsten W. Mueller, Mirjam Helfrich, Janet Rethemeyer, and Axel Don
SOIL, 7, 347–362, https://doi.org/10.5194/soil-7-347-2021, https://doi.org/10.5194/soil-7-347-2021, 2021
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Sedimentary rocks contain organic carbon that may end up as soil carbon. However, this source of soil carbon is overlooked and has not been quantified sufficiently. We analysed 10 m long sediment cores with three different sedimentary rocks. All sediments contain considerable amounts of geogenic carbon contributing 3 %–12 % to the total soil carbon below 30 cm depth. The low 14C content of geogenic carbon can result in underestimations of soil carbon turnover derived from 14C data.
Maximilian Kirsten, Robert Mikutta, Didas N. Kimaro, Karl-Heinz Feger, and Karsten Kalbitz
SOIL, 7, 363–375, https://doi.org/10.5194/soil-7-363-2021, https://doi.org/10.5194/soil-7-363-2021, 2021
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Mineralogical combinations of aluminous clay and pedogenic Fe oxides revealed significant effects on soil structure and related organic carbon (OC) storage.
The mineralogical combination resulting in the largest aggregate stability does not better preserve OC during conversion of forests into croplands.
Structural changes in the direction of smaller mean weight diameters do not cancel out the stabilizing effect of soil minerals.
Sophie F. von Fromm, Alison M. Hoyt, Markus Lange, Gifty E. Acquah, Ermias Aynekulu, Asmeret Asefaw Berhe, Stephan M. Haefele, Steve P. McGrath, Keith D. Shepherd, Andrew M. Sila, Johan Six, Erick K. Towett, Susan E. Trumbore, Tor-G. Vågen, Elvis Weullow, Leigh A. Winowiecki, and Sebastian Doetterl
SOIL, 7, 305–332, https://doi.org/10.5194/soil-7-305-2021, https://doi.org/10.5194/soil-7-305-2021, 2021
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We investigated various soil and climate properties that influence soil organic carbon (SOC) concentrations in sub-Saharan Africa. Our findings indicate that climate and geochemistry are equally important for explaining SOC variations. The key SOC-controlling factors are broadly similar to those for temperate regions, despite differences in soil development history between the two regions.
Claudia Cagnarini, Stephen Lofts, Luigi Paolo D'Acqui, Jochen Mayer, Roman Grüter, Susan Tandy, Rainer Schulin, Benjamin Costerousse, Simone Orlandini, and Giancarlo Renella
SOIL, 7, 107–123, https://doi.org/10.5194/soil-7-107-2021, https://doi.org/10.5194/soil-7-107-2021, 2021
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Application of organic amendments, although considered a sustainable form of soil fertilisation, may cause an accumulation of trace elements (TEs) in the topsoil. In this research, we analysed the concentration of zinc, copper, lead and cadmium in a > 60-year experiment in Switzerland and showed that the dynamic model IDMM adequately predicted the historical TE concentrations in plots amended with farmyard manure, sewage sludge and compost and produced reasonable concentration trends up to 2100.
Simon Baumgartner, Marijn Bauters, Matti Barthel, Travis W. Drake, Landry C. Ntaboba, Basile M. Bazirake, Johan Six, Pascal Boeckx, and Kristof Van Oost
SOIL, 7, 83–94, https://doi.org/10.5194/soil-7-83-2021, https://doi.org/10.5194/soil-7-83-2021, 2021
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We compared stable isotope signatures of soil profiles in different forest ecosystems within the Congo Basin to assess ecosystem-level differences in N cycling, and we examined the local effect of topography on the isotopic signature of soil N. Soil δ15N profiles indicated that the N cycling in in the montane forest is more closed, whereas the lowland forest and Miombo woodland experienced a more open N cycle. Topography only alters soil δ15N values in forests with high erosional forces.
Rota Wagai, Masako Kajiura, and Maki Asano
SOIL, 6, 597–627, https://doi.org/10.5194/soil-6-597-2020, https://doi.org/10.5194/soil-6-597-2020, 2020
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Global significance of metals (extractable Fe and Al phases) to control organic matter (OM) in recognized. Next key questions include the identification of their localization and mechanism behind OM–metal relationships. Across 23 soils of contrasting mineralogy, Fe and Al phases were mainly associated with microbially processed OM as meso-density microaggregates. OM- and metal-rich nanocomposites with a narrow OM : metal ratio likely acted as binding agents. A new conceptual model was proposed.
Marco Panettieri, Denis Courtier-Murias, Cornelia Rumpel, Marie-France Dignac, Gonzalo Almendros, and Abad Chabbi
SOIL, 6, 435–451, https://doi.org/10.5194/soil-6-435-2020, https://doi.org/10.5194/soil-6-435-2020, 2020
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In the context of global change, soil has been identified as a potential C sink, depending on land-use strategies. This work is devoted to identifying the processes affecting labile soil C pools resulting from changes in land use. We show that the land-use change in ley grassland provoked a decoupling of the storage and degradation processes after the grassland phase. Overall, the study enables us to develop a sufficient understanding of fine-scale C dynamics to refine soil C prediction models.
Miriam Groß-Schmölders, Pascal von Sengbusch, Jan Paul Krüger, Kristy Klein, Axel Birkholz, Jens Leifeld, and Christine Alewell
SOIL, 6, 299–313, https://doi.org/10.5194/soil-6-299-2020, https://doi.org/10.5194/soil-6-299-2020, 2020
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Degradation turns peatlands into a source of CO2. There is no cost- or time-efficient method available for indicating peatland hydrology or the success of restoration. We found that 15N values have a clear link to microbial communities and degradation. We identified trends in natural, drained and rewetted conditions and concluded that 15N depth profiles can act as a reliable and efficient tool for obtaining information on current hydrology, restoration success and drainage history.
Martin Erlandsson Lampa, Harald U. Sverdrup, Kevin H. Bishop, Salim Belyazid, Ali Ameli, and Stephan J. Köhler
SOIL, 6, 231–244, https://doi.org/10.5194/soil-6-231-2020, https://doi.org/10.5194/soil-6-231-2020, 2020
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In this study, we demonstrate how new equations describing base cation release from mineral weathering can reproduce patterns in observations from stream and soil water. This is a major step towards modeling base cation cycling on the catchment scale, which would be valuable for defining the highest sustainable rates of forest harvest and levels of acidifying deposition.
Benjamin Andrieux, David Paré, Julien Beguin, Pierre Grondin, and Yves Bergeron
SOIL, 6, 195–213, https://doi.org/10.5194/soil-6-195-2020, https://doi.org/10.5194/soil-6-195-2020, 2020
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Our study aimed to disentangle the contribution of several drivers to explaining the proportion of soil carbon that can be released to CO2 through microbial respiration. We found that boreal-forest soil chemistry is an important driver of the amount of carbon that microbes can process. Our results emphasize the need to include the effects of soil chemistry into models of carbon cycling to better anticipate the role played by boreal-forest soils in carbon-cycle–climate feedbacks.
Cited articles
Ananyeva, K., Wang, W., Smucker, A. J. M., Rivers, M. L., and Kravchenko, A. N.: Can intra-aggregate pore structures affect the aggregate's effectiveness in protecting carbon?, Soil Biol. Biochem., 57, 868–875, https://doi.org/10.1016/j.soilbio.2012.10.019, 2013.
Cambardella, C. A. and Elliott, E. T.: Particulate soil organic-matter changes across a grassland cultivation sequence, Soil Sci. Soc. Am. J., 56, 777–783, https://doi.org/10.2136/sssaj1992.03615995005600030017x, 1992.
Campbell, J. L., Socci, A. M., and Templer, P. H.: Increased nitrogen leaching following soil freezing is due to decreased root uptake in a northern hardwood forest, Glob. Change Biol., 20, 2663–2673, https://doi.org/10.1111/gcb.12532, 2014.
Chen, H., Liu, X., Xue, D., Zhu, D., Zhan, W., Li, W., Wu, N., and Yang, G.: Methane emissions during different freezing-thawing periods from a fen on the Qinghai-Tibet Plateau: Four years of measurements, Agr. Forest Meteorol., 297, 108279, https://doi.org/10.1016/j.agrformet.2020.108279, 2021.
Chen, J., Xiao, W., Zheng, C., and Zhu, B: Nitrogen addition has contrasting effects on particulate and mineral-associated soil organic carbon in a subtropical forest, Soil Biol. Biochem., 142, 107708, https://doi.org/10.1016/j.soilbio.2020.107708, 2020.
Dagesse, D. F.: Freezing cycle effects on water stability of soil aggregates, Can. J. Soil. Sci., 93, 473–483, https://doi.org/10.4141/CJSS2012-046, 2013.
Dal Ferro, N., Sartori, L., Simonetti, G., Berti, A., and Morari, F.: Soil macro-and microstructure as affected by different tillage systems and their effects on maize root growth, Soil Till. Res., 140, 55–65, https://doi.org/10.1016/j.still.2014.02.003, 2014.
de Jesus Arrieta Baldovino, J., dos Santos Izzo, R. L., and Rose, J. L.: Effects of freeze-thaw cycles and porosity/cement index on durability, strength and capillary rise of a stabilized silty soil under optimal compaction conditions, Geotech. Geol. Eng., 39, 481–498, https://doi.org/10.1007/s10706-020-01507-y, 2021.
Deng, Y., Li, X., Shi, F., and Zhang, Y.: Divergent controlling factors of freeze–thaw-induced changes in dissolved organic carbon and microbial biomass carbon between topsoil and subsoil of cold alpine grasslands, Catena, 241, 108063, https://doi.org/10.1016/j.catena.2024.108063, 2024.
Estop-Aragonés, C., Olefeldt, D., Abbott, B. W., Chanton, J. P., Czimczik, C. I., Dean, J. F., Egan, J. E., Gandois, L., Garnett, M. H., Hartley, I. P., Hoyt, A., Lupascu, M., Natali, S. M., O'Donnell, J. A., Raymond, P. A., Tanentzap, A. J., Tank, S. E., Schuur, E. A. G., Turetsky, M., and Anthony, K. W.: Assessing the Potential for Mobilization of Old Soil Carbon After Permafrost Thaw: A Synthesis of 14C Measurements from the Northern Permafrost Region, Global Biogeochem. Cy., 34, 1–26, https://doi.org/10.1029/2020GB006672, 2020.
Fu, C., Li, Y., Zeng, L., Tu, C., Wang, X., Ma, H., Xiao, L., Christie, P., and Luo, Y.: Climate and mineral accretion as drivers of mineral-associated and particulate organic matter accumulation in tidal wetland soils, Glob. Change Biol., 30, e17070, https://doi.org/10.1111/gcb.17070, 2023.
Gao, Z., Hu, X., Li, X., and Li, Z.: Effects of freeze-thaw cycles on soil macropores and its implications on formation of hummocks in alpine meadows in the Qinghai Lake watershed, northeastern Qinghai-Tibet Plateau, J. Soils Sediments, 21, 245–256, https://doi.org/10.1007/s11368-020-02765-2, 2021.
Han, C., Gu, Y., Kong, M., Hu, L., Jia, Y., Li, F., Sun, G., and Siddique, K. H. M.: Responses of soil microorganisms, carbon and nitrogen to freeze-thaw cycles in diverse land-use types, Appl. Soil Ecol., 124, 211–217, https://doi.org/10.1016/j.apsoil.2017.11.012, 2018.
He, L., Lai, C., Mayes, M. A., Murayama, S., and Xu, X.: Microbial seasonality promotes soil respiratory carbon emission in natural ecosystems: a modelling study, Glob. Change Biol., 27, 3035–3051, https://doi.org/10.1111/gcb.15627, 2021.
Henry, H. A. L.: Seasonal freeze-thaw cycle experiments: Trends, methodological weaknesses and suggested improvements, Soil Biol. Biochem., 39, 977–986, https://doi.org/10.1016/j.soilbio.2006.11.017, 2007.
Hu, W., Li, Q., Wang, W., Lin, X., He, Z., and Li, G.: Straw mulching decreased the contribution of Fe-bound organic carbon to soil organic carbon in a banana orchard, Appl. Soil Ecol., 194, 105177, https://doi.org/10.1016/j.apsoil.2023.105177, 2024.
Hu, X., Li, Z., Li, X., and Liu, L.: Quantification of soil macropores under alpine vegetation using computed tomography in the Qinghai Lake Watershed, NE Qinghai-Tibet Plateau, Geoderma, 264, 244–251, https://doi.org/10.1016/j.geoderma.2015.11.001, 2016.
Hu, X., Jiang, L., Zhao, Y., and Li, X: Characteristics of the soil macropore and root architecture of alpine meadows during the seasonal freezing-thawing process and their impact on water transport in the Qinghai Lake watershed, northeastern Qinghai-Tibet Plateau, J. Soil Water Conserv., 78, 299–308, https://doi.org/10.2489/jswc.2023.00155, 2023.
Huang, D., Zhou, L., Fan, H., Jia, Y., and Liu, M.: Responses of aggregates and associated soil available phosphorus, and soil organic matter in different slope aspects, to seasonal freeze–thaw cycles in Northeast China, Geoderma, 402, 115184, https://doi.org/10.1016/j.geoderma.2021.115184, 2021.
IUSS Working Group WRB: World Reference Base for Soil Resources, International soil classification system for naming soils and creating legends for soil maps, 4th edn., International Union of Soil Sciences (IUSS), Vienna, Austria, ISBN 979-8-9862451-1-9, 2022.
Jaques, V. A. J., Du Plessis, A., Zemek, M., Salplachta, J., Stubianova, Z., Zikmund, T., and Kaiser, J.: Review of porosity uncertainty estimation methods in computed tomography dataset, Meas. Sci. Technol., 32, 122001, https://doi.org/10.1088/1361-6501/ac1b40, 2021.
Kang, J., Qu, C., Chen, W., Cai, P., Chen, C., and Huang, Q.: Organo-organic interactions dominantly drive soil organic carbon accrual, Glob. Change Biol., 30, e17147, https://doi.org/10.1111/gcb.17147, 2024.
Keiluweit, M., Wanzek, T., Kleber, M., Nico, P., and Fendorf, S.: Anaerobic microsites have an unaccounted role in soil carbon stabilization, Nat Commun., 8, 1771, https://doi.org/10.1038/s41467-017-01406-6, 2017.
Kim, Y., Hyun, J., Yoo, S., and Yoo, J.: The role of biochar in alleviating soil drought stress in urban roadside greenery, Geoderma, 404, 115223, https://doi.org/10.1016/j.geoderma.2021.115223, 2021.
Kim, Y. J., Kim, J., and Jung, J. Y.: Responses of dissolved organic carbon to freeze–thaw cycles associated with the changes in microbial activity and soil structure, The Cryosphere, 17, 3101–3114, https://doi.org/10.5194/tc-17-3101-2023, 2023.
Klute, A.: Methods of Soil Analysis: Part 1 – Physical and Mineralogical Methods, American Society of Agronomy, Madison, ISBN 9780891188643, 1986.
Kravchenko, A. N. and Guber, A. K.: Soil pores and their contributions to soil carbon processes, Geoderma, 287, 31–39, https://doi.org/10.1016/j.geoderma.2016.06.027, 2017.
Kravchenko, A. N., Guber, A. K., Razavi, B. S., Koestel, J. K., Quigley, M. Y., Robertson, G. P., and Kuzyakov, Y.: Microbial spatial footprint as a driver of soil carbon stabilization, Nat. Commun., 10, 3121, https://doi.org/10.1038/s41467-019-11057-4, 2019.
Kravchenko, A. N., Negassa, W. C., Guber, A. K., and Rivers, M. L.: Protection of soil carbon within macro-aggregates depends on intra-aggregate pore characteristics, Sci. Rep., 5, 1–10, https://doi.org/10.1038/srep16261, 2015.
Kreyling, J., Beierkuhnlein, C., Pirtsch, K., Schloter, M., and Jentsch, A.: Recurrent soil freeze-thaw cycles enhance grassland productivity, New Phytol., 177, 938–945, https://doi.org/10.1111/j.1469-8137.2007.02309.x, 2007.
Lal, R. and Shukla, M. K.: Principles of Soil physics, Marcel Dekker, New York, ISBN 0-8247-5324-0, 2004.
Li, G. and Fan, H.: Effect of freeze-thaw on water stability of aggregates in a black soil of Northeast China, Pedosphere, 24, 285–290, https://doi.org/10.1016/S1002-0160(14)60015-1, 2014.
Li, P., Kong, D., Zhang, H., Xu, L., Li, C., Wu, M., Jiao, J., Li, D., Xu, L., Li, H., and Hu, F.: Different regulation of soil structure and resource chemistry under animal-and plant- derived organic fertilizers changed soil bacterial communities, Appl. Soil Ecol., 165, 104020, https://doi.org/10.1016/j.apsoil.2021.104020, 2022.
Li, R., Luo, H., Yu, J., Luo, Y., He, Y., Deng, S., Deng, O., Shi, D., He, J., Xiao, H., Wang, L., and Lan, T.: The importance of moisture in regulating soil organic carbon content based on a comparison of “enzymic latch” and “iron gate” in Zoige Plateau peatland, Catena, 225, 107019, https://doi.org/10.1016/j.catena.2023.107019, 2023.
Li, X., Yang, X., Ma, Y., Hu, G., Hu, X., Wu, X., Wang, P., Huang, Y., Cui, B., and Wei, J.: Qinghai Lake Basin critical zone observatory on the Qinghai-Tibet Plateau, Vadose Zone J., 17, 180069, https://doi.org/10.2136/vzj2018.04.0069, 2018.
Liang, A., Zhang, Y., Zhang, X., Yang, X., McLaughlin, N., Chen, X., Guo, Y., Jia, S., Zhang, S., Wang, L., and Tang, J.: Investigations of relationships among aggregate pore structure, microbial biomass, and soil organic carbon in a Mollisol using combined non-destructive measurements and phospholipid fatty acid analysis, Soil Till. Res., 185, 94–101, https://doi.org/10.1016/j.still.2018.09.003, 2019.
Lin, Z, Gao, Z., Niu, F., Luo, J., Yin, G., Liu, M., and Fan, X.: High spatial density ground thermal measurements in a warming permafrost region, Beiluhe Basin, Qinghai-Tibet Plateau, Geomorphology, 340, 1–14, https://doi.org/10.1016/j.geomorph.2019.04.032, 2019.
Liu, B., Fan, H., Jiang, Y., and Ma, R.: Evaluation of soil macro-aggregate characteristics in response to soil macropore characteristics investigated by X-ray computed tomography under freeze-thaw effects, Soil Till. Res., 225, 105559, https://doi.org/10.1016/j.still.2022.105559, 2023.
Liu, F., Chen, L., Abbott, B. W., Xu, Y., Yang, G., Kou, D., Qin, S., Strauss, J., Wang, Y., Zhang, B., and Yang, Y.: Reduced quantity and quality of SOM along a thaw sequence on the Tibetan Plateau, Environ. Res. Lett., 13, 104017, https://doi.org/10.1088/1748-9326/aae43b, 2018.
Liu, F., Kou, D., Chen, Y., Xue, K., Ernakovic, J. G., Chen, L., Yang, G., and Yang, Y.: Altered microbial structure and function after thermokarst formation, Glob. Change Biol., 27, 823–835, https://doi.org/10.1111/gcb.15438, 2021.
Lugato, E., Morari, F., and Nardi, S.: Relationship between aggregate pore size distribution and organic-humic carbon in contrasting soils, Soil Till. Res., 103, 153–157, https://doi.org/10.1016/j.still.2008.10.013, 2009.
Lugato, E., Simonetti, G., Morari, F., Nardi, S., Berti, A., and Giardini, L.: Distribution of organic and humic carbon in wet-sieved aggregates of different soils under long-term fertilization experiment, Geoderma, 157, 80–85, https://doi.org/10.1016/j.geoderma.2010.03.017, 2010.
Ma, R., Jiang, Y., Liu, B., and Fan, H.: Effects of pore structure characterized by synchrotron-based micro-computed tomography on aggregate stability of black soil under freeze-thaw cycles, Soil Till. Res., 207, 104855, https://doi.org/10.1016/j.still.2020.104855, 2021.
Ma, Y., Xie, T., and Li, X.: Spatial variation of soil organic carbon in the Qinghai Lake watershed, northeast Qinghai-Tibet Plateau, Catena, 213, 106187, https://doi.org/10.1016/j.catena.2022.106187, 2022.
Mako, A., Szabo, B., Rajkai, K., Szabo, J., Bakacsi, Z., Labancz, V., Hernadi, H., and Barna, G.: Evaluation of soil texture determination using soil fraction data resulting from laser diffraction method, Int. Agrophys., 33, 445–454, https://doi.org/10.31545/intagr/113347, 2019.
Mu, C., Zhang, T., Zhao, Q., Guo, H., Zhong, W., Su, H., and Wu, Q.: Soil organic carbon stabilization by iron in permafrost regions of the Qinghai-Tibet Plateau, Geophy. Res. Lett., 43, 10286–10294, https://doi.org/10.1002/2016GL070071, 2016.
Ozlu, E. and Arriaga, F. J.: The role of carbon stabilization and minerals on soil aggregation in different ecosystems, Catena, 202, 105303, https://doi.org/10.1016/j.catena.2021.105303, 2021.
Oztas, T. and Fayetorbay, F.: Effect of freezing and thawing processes on soil aggregate stability, Catena, 52, 1–8, https://doi.org/10.1016/S0341-8162(02)00177-7, 2003.
Patel, K. F., Tatariw, C., Macrae, J. D., Ohno, T., Nelson, S. J., and Fernandez, I. J.: Repeated freeze-thaw cycles increase extractable, but not total, carbon and nitrogen in a Maine coniferous soil, Geoderma, 402, 115353, https://doi.org/10.1016/j.geoderma.2021.115353, 2021.
Peng, X., Zhang, T., Frauenfeld, O. W., Wang, K., Cao, B., Zhong, X., Su, H., and Mu, C.: Response of seasonal soil freeze depth to climate change across China, The Cryosphere, 11, 1059–1073, https://doi.org/10.5194/tc-11-1059-2017, 2017.
Qiao, L., Zhou, H., Wang, Z., Li, Y., Chen, W., Wu, Y., Liu, G., and Xue, S.: Variations in soil aggregate stability and organic carbon stability of alpine meadow and shrubland under long-term warming, Catena, 222, 106848, https://doi.org/10.1016/j.catena.2022.106848, 2023.
Quigley, M. Y. and Kravchenko, A. N.: Inputs of root-derived carbon into soil and its losses are associated with pore-size distributions, Geoderma, 410, 115667, https://doi.org/10.1016/j.geoderma.2021.115667, 2022.
Rabot, E., Wiesmeier, M., Schlute, S., and Vogel, H. J.: Soil structure as an indicator of soil functions: A review, Geoderma, 314, 122–137, https://doi.org/10.1016/j.geoderma.2017.11.009, 2018.
Rempel, A. W. and van Alst, L. J.: Potential gradients produced by pore-space heterogeneities: Application to isothermal frost damage and submarine hydrate anomalies, Poromechanics V, 813–822, https://doi.org/10.1061/9780784412992.098, 2013.
Rooney, E. C., Bailey, V. L., Patel, K. F., Dragila, M., Battu, A. K., Buchko, A. C., Gallo, A. C., Hatten, J., Possinger, A. R., Qafoku, O., Reno, L. R., SanClements, M., Varga, T., and Lybrand, R. A.: Soil pore network response to freeze-thaw cycles in permafrost aggregates, Geoderma, 411, 115674, https://doi.org/10.1016/j.geoderma.2021.115674, 2022.
Ruamps, L. S., Nunan, N., Pouteau, V., Leloup, J., Raynaud, X., Roy, V., and Chenu, C.: Regulation of soil organic C mineralisation at the pore scale, FEMS Microbiol. Ecol., 86, 26–35, https://doi.org/10.1111/1574-6941.12078, 2013.
Schluter, S., Leuther, F., Albrecht, L., Hoeschen, C., Kilian, R., Surey, R., Mikutta, R., Kaiser, K., Mueller, C. W., and Vogel, H.: Microscale carbon distribution around pores and particulate organic matter varies with soil moisture regime, Nat. Commun., 13, 2098, https://doi.org/10.1038/s41467-022-29605-w, 2022.
Schutter, M. E. and Dick, R. P.: Microbial community profiles and activities among aggregates of winter fallow and cover-cropped soil, Soil Sci. Soc. Am. J., 66, 142–153, https://doi.org/10.2136/sssaj2002.1420, 2002.
Schuur, E. A. G. and Mack, M. C.: Ecological response to permafrost thaw and consequences for local and global ecosystem services, Annu. Rev. Ecol. Evol., 49, 279–301, https://doi.org/10.1146/annurev-ecolsys-121415-032349, 2018.
Six, J., Elliott, E. T., Paustian, K., and Doran, J. W.: Aggregation and soil organic matter accumulation in cultivated and native grassland soils, Soil Sci. Soc. Am. J., 62, 1367–1377, https://doi.org/10.2136/sssaj1998.03615995006200050032x, 1998.
Skvortsova, E. B., Shen, E. V., and Abrosimov, K. N.: The impact of multiple freeze-thaw cycles on the microstructure of aggregates from a Soddy-Podzolic soil: a microtomographic analysis, Eurasian Soil Sci., 51, 190–198, https://doi.org/10.1134/S1064229318020102, 2018.
Song, X., Wang, G., Ran, F., Huang, K., Sun, J., and Song, C.: Soil moisture as a key factor in carbon release from thawing permafrost in a boreal forest, Geoderma, 357, 113975, https://doi.org/10.1016/j.geoderma.2019.113975, 2020.
Song, Y., Zou, Y., Wang, G., and Yu, X.: Altered soil carbon and nitrogen cycles due to the freeze-thaw effect: A meta-analysis, Soil Biol. Biochem., 109, 35–49, https://doi.org/10.1016/j.soilbio.2017.01.020, 2017.
Starkloff, T., Larsbo, M., Stolte, J., Hessel, R., and Ritsema, C.: Quantifying the impact of a succession of freezing-thawing cycles on the pore network of a silty clay loam and a loamy sand topsoil using X-ray tomography, Catena, 156, 365–374, https://doi.org/10.1016/j.catena.2017.04.026, 2017.
Strong, E. T., Wever, H. D., Merckx, R., and Recous, S.: Spatial location of carbon decomposition in the soil pore system, Eur. J. Soil Sci., 55, 739–750, https://doi.org/10.1111/j.1365-2389.2004.00639.x, 2004.
Sun, T., Mao, X., Han, K., Wang, X., Cheng, Q., Liu, X., Zhou, J., Ma, Q., Ni, Z., and Wu, L.: Nitrogen addition increased soil particulate organic carbon via plant carbon input whereas reduced mineral-associated organic carbon through attenuating mineral protection in agroecosystem, Sci. Total Environ., 899, 165705, https://doi.org/10.1016/j.scitotenv.2023.165705, 2023.
Sun, T., Wang, Y., Hui, D., Jing, X., and Feng, W.: Soil properties rather than climate and ecosystem type control the vertical variations of soil organic carbon, microbial carbon, and microbial quotient, Soil Biol. Biochem., 148, 107905, https://doi.org/10.1016/j.soilbio.2020.107905, 2020.
Tan, B., Wu, F., Yang, W., and He, X.: Snow removal alters soil microbial biomass and enzyme activity in a Tibetan alpine forest, Appl. Soil Ecol., 76, 34–41, https://doi.org/10.1016/j.apsoil.2013.11.015, 2014.
Tarnocai, C., Canadell, J. G., Schuur, E. A. G., Kuhry, P., Mazhitova, G., and Zimov, S.: Soil organic carbon pools in the northern circumpolar permafrost region, Global Biogeochem. Cy., 23, GB2023, https://doi.org/10.1029/2008GB003327, 2009.
Tisdall, J. M. and Oades, J. M.: Organic-matter and water-stable aggregates in soils, J. Soil Sci., 33, 141–163, https://doi.org/10.1111/j.1365-2389.1982.tb01755.x, 1982.
Védère, C., Vieublé Gonod, L., Pouteau, V., Girardin, C., and Chenu, C.: Spatial and temporal evolution of detritusphere hotspots at different soil moistures, Soil Biol. Biochem., 150, 107975, https://doi.org/10.1016/j.soilbio.2020.107975, 2020.
Wang, D., Ma, Y., Niu, Y., Chang, X., and Wen, Z.: Effects of cyclic freezing and thawing on mechanical properties of Qinghai-Tibet clay, Cold Reg. Sci. Tech., 48, 34–43, https://doi.org/10.1016/j.coldregions.2006.09.008, 2007.
Wang, E., Cruse, R., Chen, X., and Daigh, A.: Effects of moisture condition and freeze/thaw cycles on surface soil aggregate size distribution and stability, Can. J. Soil Sci., 92, 529–536, https://doi.org/10.1007/s40333-017-0009-3, 2012.
Wang, M., Guo, X., Zhang, S., Xiao, L., Mishra, U., Yang, Y., Zhu, B., Wang, G., Mao, X., Qian, T., Jiang, T., Shi, Z., and Luo, Z.: Global soil profiles indicate depth-dependent soil carbon losses under a warmer climate, Nat. Commun., 13, 5514, https://doi.org/10.1038/s41467-022-33278-w, 2022.
Wang, R. and Hu, X.: Pore structure characteristics and organic carbon distribution of soil aggregates in alpine ecosystems in the Qinghai Lake basin on the Qinghai-Tibet Plateau, Catena, 231, 107359, https://doi.org/10.1016/j.catena.2023.107359, 2023.
Wang, X., Wang, C., and Fan, X.: Mineral composition controls the stabilization of microbially derived carbon and nitrogen in soils: Insights from an isotope tracing model, Glob. Change Biol., 30, e17156, https://doi.org/10.1111/gcb.17156, 2024.
Wang, Y., Li, S., and Xu, Y.: Incorporated maize residues will induce more accumulation of new POC in HF compared with that in LF soils: a comparison of different residue types, J. Soil Sediments, 20, 3941–3950, https://doi.org/10.1007/s11368-020-02718-9, 2020.
Witzgall, K., Vidal, A., Schubert, D. I., Hoschen, C., Schweizer, S. A., Buegger, F., Pouteau, V., Chenu, C., and Mueller, C. W.: Particulate organic matter as a functional soil component for persistent soil organic carbon, Nat. Commun., 12, 1–10, https://doi.org/10.1038/s41467-021-24192-8, 2021.
Wu, T., Li., X., Zuo, F., Deng, Y., and Hu, G.: Responses of soil water dynamics to precipitation events in an alpine meadow ecosystem of the Qinghai Lake Basin based on high-precision lysimeter measurements, Hydrol. Process., 37, e14874, https://doi.org/10.1002/hyp.14874, 2023.
Wu, Y. and Hu, X.: Soil open pore structure regulates soil organic carbon fractions of soil aggregates under simulated freeze-thaw cycles as determined by X-ray computed tomography, J. Soil Sci. Plant Nutr., 24, 5235–5248, https://doi.org/10.1007/s42729-024-01904-9, 2024.
Xiao, L., Zhang, Y., Li, P., Xu, G., Shi, P., and Zhang, Y.: Effects of freeze-thaw cycles on aggregate-associated organic carbon and glomalin-related soil protein in natural-succession grassland and Chinese pine forest on the Loess Plateau, Geoderma, 334, 1–8, https://doi.org/10.1016/j.geoderma.2018.07.043, 2019.
Yang, Z., Hu, X., Gao, Z., and Zhao, Y.: Soil macropore networks derived from X-ray computed tomography in response to typical thaw slumps in Qinghai-Tibetan Plateau, China, J. Soil Sediment, 21, 2845–2854, https://doi.org/10.1007/s11368-021-02983-2, 2021.
Zhang, W., Munkholm, L. J., Liu, X., An, T., Xu, Y., Ge, Z., Xie, N., Li, A., Dong, Y., Peng, C., Li, S., and Wang, J.: Soil aggregate microstructure and microbial community structure mediate soil organic carbon accumulation: Evidence from one-year field experiment, Geoderma, 430, 116324, https://doi.org/10.1016/j.geoderma.2023.116324, 2023.
Zhang, X., Xin, X., Zhu, A., Zhang, J., and Yang, W.: Effects of tillage and residue managements on organic C accumulation and soil aggregation in a sandy loam soil of the North China Plain, Catena, 156, 176–183, https://doi.org/10.1016/j.catena.2017.04.012, 2017.
Zhao, Y. and Hu, X.: A pore-scale investigation of soil aggregate structure responding to freeze-thaw cycles using X-ray computed microtomography, J. Soil Sediment, 23, 3137–3148, https://doi.org/10.1007/s11368-023-03539-2, 2023a.
Zhao, Y. and Hu, X.: Seasonal freeze-thaw processes regulate and buffer the distribution of microbial communities in soil horizons, Catena, 231, 107348, https://doi.org/10.1016/j.catena.2023.107348, 2023b.
Zhao, Y., Hu, X., and Li, X.: Analysis of the intra-aggregate pore structures in three soil types using X-ray computed tomography, Catena, 193, 104622, https://doi.org/10.1016/j.catena.2020.104622, 2020.
Zhou, H., Peng, X., Peth, S., and Xiao, T.: Effects of vegetation restoration on soil aggregate microstructure quantified with synchrotron-based micro-computed tomography, Soil Till. Res., 124, 17–23, https://doi.org/10.1016/j.still.2012.04.006, 2012.
Zhu, E., Li, Z., and Ma, L.: Enhanced mineral preservation rather than microbial residue production dictates the accrual of mineral-associated organic carbon along a weathering gradient, Geophys. Res. Lett., 51, e2024GL108466, https://doi.org/10.1029/2024GL108466, 2024.
Short summary
This study characterized pore structure and soil organic carbon (SOC) fractions of aggregates during the seasonal freeze–thaw process. Freezing was associated with SOC accumulation, while the early stage of thawing was characterized by SOC loss. In the freezing period, pore structure could enhance SOC accumulation by promoting formation of > 80 μm pores. In the thawing period, pores of < 15 μm might inhibit SOC loss. These results present new perspectives on soil microstructure–SOC interactions.
This study characterized pore structure and soil organic carbon (SOC) fractions of aggregates...
