Articles | Volume 5, issue 1
https://doi.org/10.5194/soil-5-91-2019
© Author(s) 2019. 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-5-91-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
On-farm study reveals positive relationship between gas transport capacity and organic carbon content in arable soil
Department of Soil and Environment, Swedish University of Agricultural
Sciences, Uppsala, 11824, Sweden
Department of Agroecology and Environment, Agroscope, Zurich, 8046,
Switzerland
Florian Walder
Department of Agroecology and Environment, Agroscope, Zurich, 8046,
Switzerland
Lucie Büchi
Department of Plant Production Systems, Agroscope, Nyon, 1260,
Switzerland
Natural Resources Institute, University of Greenwich, Chatham
Maritime, ME4 4TB, UK
Marlies Sommer
Department of Agroecology and Environment, Agroscope, Zurich, 8046,
Switzerland
Kexing Liu
Department of Agroecology and Environment, Agroscope, Zurich, 8046,
Switzerland
College of Natural Resources and Environment, South China Agricultural
University, Guangzhou, 510640, China
Johan Six
Department of Environmental Systems Science, ETH Zurich, Zurich, 8092,
Switzerland
Marcel G. A. van der Heijden
Department of Agroecology and Environment, Agroscope, Zurich, 8046,
Switzerland
Department of Evolutionary Biology and Environmental Studies,
University of Zurich, 8092, Zurich, Switzerland
Plant-Microbe Interactions, Faculty of Science, Institute of
Environmental Biology, Utrecht University, 3584, Utrecht, the Netherlands
Raphaël Charles
Department of Plant Production Systems, Agroscope, Nyon, 1260,
Switzerland
Department of Extension, Training and Communication, Research
Institute of Organic Agriculture (FiBL), 1001, Lausanne, Switzerland
Thomas Keller
Department of Soil and Environment, Swedish University of Agricultural
Sciences, Uppsala, 11824, Sweden
Department of Agroecology and Environment, Agroscope, Zurich, 8046,
Switzerland
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SOIL, 10, 151–165, https://doi.org/10.5194/soil-10-151-2024, https://doi.org/10.5194/soil-10-151-2024, 2024
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EGUsphere, https://doi.org/10.5194/egusphere-2022-209, https://doi.org/10.5194/egusphere-2022-209, 2022
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Qing Sun, Valentin H. Klaus, Raphaël Wittwer, Yujie Liu, Marcel G. A. van der Heijden, Anna K. Gilgen, and Nina Buchmann
Biogeosciences, 19, 1853–1869, https://doi.org/10.5194/bg-19-1853-2022, https://doi.org/10.5194/bg-19-1853-2022, 2022
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Philipp Baumann, Juhwan Lee, Emmanuel Frossard, Laurie Paule Schönholzer, Lucien Diby, Valérie Kouamé Hgaza, Delwende Innocent Kiba, Andrew Sila, Keith Sheperd, and Johan Six
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Laura Summerauer, Philipp Baumann, Leonardo Ramirez-Lopez, Matti Barthel, Marijn Bauters, Benjamin Bukombe, Mario Reichenbach, Pascal Boeckx, Elizabeth Kearsley, Kristof Van Oost, Bernard Vanlauwe, Dieudonné Chiragaga, Aimé Bisimwa Heri-Kazi, Pieter Moonen, Andrew Sila, Keith Shepherd, Basile Bazirake Mujinya, Eric Van Ranst, Geert Baert, Sebastian Doetterl, and Johan Six
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Sebastian Doetterl, Rodrigue K. Asifiwe, Geert Baert, Fernando Bamba, Marijn Bauters, Pascal Boeckx, Benjamin Bukombe, Georg Cadisch, Matthew Cooper, Landry N. Cizungu, Alison Hoyt, Clovis Kabaseke, Karsten Kalbitz, Laurent Kidinda, Annina Maier, Moritz Mainka, Julia Mayrock, Daniel Muhindo, Basile B. Mujinya, Serge M. Mukotanyi, Leon Nabahungu, Mario Reichenbach, Boris Rewald, Johan Six, Anna Stegmann, Laura Summerauer, Robin Unseld, Bernard Vanlauwe, Kristof Van Oost, Kris Verheyen, Cordula Vogel, Florian Wilken, and Peter Fiener
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The African Tropics are hotspots of modern-day land use change and are of great relevance for the global carbon cycle. Here, we present data collected as part of the DFG-funded project TropSOC along topographic, land use, and geochemical gradients in the eastern Congo Basin and the Albertine Rift. Our database contains spatial and temporal data on soil, vegetation, environmental properties, and land management collected from 136 pristine tropical forest and cropland plots between 2017 and 2020.
Philipp Baumann, Anatol Helfenstein, Andreas Gubler, Armin Keller, Reto Giulio Meuli, Daniel Wächter, Juhwan Lee, Raphael Viscarra Rossel, and Johan Six
SOIL, 7, 525–546, https://doi.org/10.5194/soil-7-525-2021, https://doi.org/10.5194/soil-7-525-2021, 2021
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We developed the Swiss mid-infrared spectral library and a statistical model collection across 4374 soil samples with reference measurements of 16 properties. Our library incorporates soil from 1094 grid locations and 71 long-term monitoring sites. This work confirms once again that nationwide spectral libraries with diverse soils can reliably feed information to a fast chemical diagnosis. Our data-driven reduction of the library has the potential to accurately monitor carbon at the plot scale.
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.
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.
Anatol Helfenstein, Philipp Baumann, Raphael Viscarra Rossel, Andreas Gubler, Stefan Oechslin, and Johan Six
SOIL, 7, 193–215, https://doi.org/10.5194/soil-7-193-2021, https://doi.org/10.5194/soil-7-193-2021, 2021
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In this study, we show that a soil spectral library (SSL) can be used to predict soil carbon at new and very different locations. The importance of this finding is that it requires less time-consuming lab work than calibrating a new model for every local application, while still remaining similar to or more accurate than local models. Furthermore, we show that this method even works for predicting (drained) peat soils, using a SSL with mostly mineral soils containing much less soil carbon.
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.
Simon Baumgartner, Matti Barthel, Travis William Drake, Marijn Bauters, Isaac Ahanamungu Makelele, John Kalume Mugula, Laura Summerauer, Nora Gallarotti, Landry Cizungu Ntaboba, Kristof Van Oost, Pascal Boeckx, Sebastian Doetterl, Roland Anton Werner, and Johan Six
Biogeosciences, 17, 6207–6218, https://doi.org/10.5194/bg-17-6207-2020, https://doi.org/10.5194/bg-17-6207-2020, 2020
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Soil respiration is an important carbon flux and key process determining the net ecosystem production of terrestrial ecosystems. The Congo Basin lacks studies quantifying carbon fluxes. We measured soil CO2 fluxes from different forest types in the Congo Basin and were able to show that, even though soil CO2 fluxes are similarly high in lowland and montane forests, the drivers were different: soil moisture in montane forests and C availability in the lowland forests.
Katharina Hildegard Elisabeth Meurer, Claire Chenu, Elsa Coucheney, Anke Marianne Herrmann, Thomas Keller, Thomas Kätterer, David Nimblad Svensson, and Nicholas Jarvis
Biogeosciences, 17, 5025–5042, https://doi.org/10.5194/bg-17-5025-2020, https://doi.org/10.5194/bg-17-5025-2020, 2020
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We present a simple model that describes, for the first time, the dynamic two-way interactions between soil organic matter and soil physical properties (porosity, pore size distribution, bulk density and layer thickness). The model was able to accurately reproduce the changes in soil organic carbon, soil bulk density and surface elevation observed during 63 years in a field trial, as well as soil water retention curves measured at the end of the experimental period.
Long Ho, Ruben Jerves-Cobo, Matti Barthel, Johan Six, Samuel Bode, Pascal Boeckx, and Peter Goethals
Biogeosciences Discuss., https://doi.org/10.5194/bg-2020-311, https://doi.org/10.5194/bg-2020-311, 2020
Revised manuscript not accepted
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Marijn Van de Broek, Shiva Ghiasi, Charlotte Decock, Andreas Hund, Samuel Abiven, Cordula Friedli, Roland A. Werner, and Johan Six
Biogeosciences, 17, 2971–2986, https://doi.org/10.5194/bg-17-2971-2020, https://doi.org/10.5194/bg-17-2971-2020, 2020
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Stephen J. Harris, Jesper Liisberg, Longlong Xia, Jing Wei, Kerstin Zeyer, Longfei Yu, Matti Barthel, Benjamin Wolf, Bryce F. J. Kelly, Dioni I. Cendón, Thomas Blunier, Johan Six, and Joachim Mohn
Atmos. Meas. Tech., 13, 2797–2831, https://doi.org/10.5194/amt-13-2797-2020, https://doi.org/10.5194/amt-13-2797-2020, 2020
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The latest commercial laser spectrometers have the potential to revolutionize N2O isotope analysis. However, to do so, they must be able to produce trustworthy data. Here, we test the performance of widely used laser spectrometers for ambient air applications and identify instrument-specific dependencies on gas matrix and trace gas concentrations. We then provide a calibration workflow to facilitate the operation of these instruments in order to generate reproducible and accurate data.
Karl Voglmeier, Johan Six, Markus Jocher, and Christof Ammann
Biogeosciences, 16, 1685–1703, https://doi.org/10.5194/bg-16-1685-2019, https://doi.org/10.5194/bg-16-1685-2019, 2019
Elizabeth Verhoeven, Matti Barthel, Longfei Yu, Luisella Celi, Daniel Said-Pullicino, Steven Sleutel, Dominika Lewicka-Szczebak, Johan Six, and Charlotte Decock
Biogeosciences, 16, 383–408, https://doi.org/10.5194/bg-16-383-2019, https://doi.org/10.5194/bg-16-383-2019, 2019
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This study utilized state-of-the-art measurements of nitrogen isotopes to evaluate nitrogen cycling and to assess the biological sources of the potent greenhouse gas, N2O, in response to water-saving practices in rice systems. Water-saving practices did emit more N2O, and high N2O production had a lower 15N isotope signature. Modeling and visual interpretation indicate that these emissions mostly came from denitrification or nitrifier denitrification, controlled upstream by nitrification rates.
R. Hüppi, R. Felber, A. Neftel, J. Six, and J. Leifeld
SOIL, 1, 707–717, https://doi.org/10.5194/soil-1-707-2015, https://doi.org/10.5194/soil-1-707-2015, 2015
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Biochar is considered an opportunity to tackle major environmental issues in agriculture. Adding pyrolised organic residues to soil may sequester carbon, increase yields and reduce nitrous oxide emissions from soil. It is unknown, whether the latter is induced by changes in soil pH. We show that biochar application substantially reduces nitrous oxide emissions from a temperate maize cropping system. However, the reduction was only achieved with biochar but not with liming.
C. Decock, J. Lee, M. Necpalova, E. I. P. Pereira, D. M. Tendall, and J. Six
SOIL, 1, 687–694, https://doi.org/10.5194/soil-1-687-2015, https://doi.org/10.5194/soil-1-687-2015, 2015
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Further progress in understanding and mitigating N2O emissions from soil lies within transdisciplinary research that reaches across spatial scales and takes an ambitious look into the future.
M. S. Torn, A. Chabbi, P. Crill, P. J. Hanson, I. A. Janssens, Y. Luo, C. H. Pries, C. Rumpel, M. W. I. Schmidt, J. Six, M. Schrumpf, and B. Zhu
SOIL, 1, 575–582, https://doi.org/10.5194/soil-1-575-2015, https://doi.org/10.5194/soil-1-575-2015, 2015
B. Wolf, L. Merbold, C. Decock, B. Tuzson, E. Harris, J. Six, L. Emmenegger, and J. Mohn
Biogeosciences, 12, 2517–2531, https://doi.org/10.5194/bg-12-2517-2015, https://doi.org/10.5194/bg-12-2517-2015, 2015
S. Doetterl, J.-T. Cornelis, J. Six, S. Bodé, S. Opfergelt, P. Boeckx, and K. Van Oost
Biogeosciences, 12, 1357–1371, https://doi.org/10.5194/bg-12-1357-2015, https://doi.org/10.5194/bg-12-1357-2015, 2015
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We link the mineralogy of soils affected by erosion and deposition to the distribution of soil carbon fractions, their turnover and microbial activity. We show that the weathering status of soils and their history are controlling the stabilization of carbon with minerals. After burial, aggregated C is preserved more efficiently while non-aggregated C can be released and younger C re-sequestered more easily. Weathering changes the effectiveness of stabilization mechanism limiting this C sink.
E. C. Brevik, A. Cerdà, J. Mataix-Solera, L. Pereg, J. N. Quinton, J. Six, and K. Van Oost
SOIL, 1, 117–129, https://doi.org/10.5194/soil-1-117-2015, https://doi.org/10.5194/soil-1-117-2015, 2015
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This paper provides a brief accounting of some of the many ways that the study of soils can be interdisciplinary, therefore giving examples of the types of papers we hope to see submitted to SOIL.
Related subject area
Soil systems
Evolutionary pathways in soil-landscape evolution models
Effects of environmental factors on the influence of tillage conversion on saturated soil hydraulic conductivity obtained with different methodologies: a global meta-analysis
Assessing soil and land health across two landscapes in eastern Rwanda to inform restoration activities
Nonlinear turnover rates of soil carbon following cultivation of native grasslands and subsequent afforestation of croplands
The effect of soil properties on zinc lability and solubility in soils of Ethiopia – an isotopic dilution study
Comparison of regolith physical and chemical characteristics with geophysical data along a climate and ecological gradient, Chilean Coastal Cordillera (26 to 38° S)
Obtaining more benefits from crop residues as soil amendments by application as chemically heterogeneous mixtures
Modeling soil and landscape evolution – the effect of rainfall and land-use change on soil and landscape patterns
Soil environment grouping system based on spectral, climate, and terrain data: a quantitative branch of soil series
Spatially resolved soil solution chemistry in a central European atmospherically polluted high-elevation catchment
Soil bacterial community and functional shifts in response to altered snowpack in moist acidic tundra of northern Alaska
Potential for agricultural production on disturbed soils mined for apatite using legumes and beneficial microbe
Zero net livelihood degradation – the quest for a multidimensional protocol to combat desertification
Soil microbial communities following bush removal in a Namibian savanna
Effects of land use changes on the dynamics of selected soil properties in northeast Wellega, Ethiopia
Soil biochemical properties in brown and gray mine soils with and without hydroseeding
Quantifying soil and critical zone variability in a forested catchment through digital soil mapping
W. Marijn van der Meij
SOIL, 8, 381–389, https://doi.org/10.5194/soil-8-381-2022, https://doi.org/10.5194/soil-8-381-2022, 2022
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The development of soils and landscapes can be complex due to changes in climate and land use. Computer models are required to simulate this complex development. This research presents a new method to analyze and visualize the results of these models. This is done with the use of evolutionary pathways (EPs), which describe how soil properties change in space and through time. I illustrate the EPs with examples from the field and give recommendations for further use of EPs in soil model studies.
Kaihua Liao, Juan Feng, Xiaoming Lai, and Qing Zhu
SOIL, 8, 309–317, https://doi.org/10.5194/soil-8-309-2022, https://doi.org/10.5194/soil-8-309-2022, 2022
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The influence of the conversion from conventional tillage (CT) to conservation tillage (CS; including no tillage, NT, and reduced tillage, RT) on the saturated hydraulic conductivity (Ksat) of soils is not well understood and still debated. This study has demonstrated that quantifying the effects of tillage conversion on soil Ksat needed to consider experimental conditions, especially the measurement technique and conversion period.
Leigh Ann Winowiecki, Aida Bargués-Tobella, Athanase Mukuralinda, Providence Mujawamariya, Elisée Bahati Ntawuhiganayo, Alex Billy Mugayi, Susan Chomba, and Tor-Gunnar Vågen
SOIL, 7, 767–783, https://doi.org/10.5194/soil-7-767-2021, https://doi.org/10.5194/soil-7-767-2021, 2021
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Achieving global restoration targets requires scaling of context-specific restoration options on the ground. We implemented the Land Degradation Surveillance Framework in Rwanda to assess indicators of soil and land health, including soil organic carbon (SOC), erosion prevalence, infiltration capacity, and tree biodiversity. Maps of soil erosion and SOC were produced at 30 m resolution with high accuracy. These data provide a rigorous biophysical baseline for tracking changes over time.
Guillermo Hernandez-Ramirez, Thomas J. Sauer, Yury G. Chendev, and Alexander N. Gennadiev
SOIL, 7, 415–431, https://doi.org/10.5194/soil-7-415-2021, https://doi.org/10.5194/soil-7-415-2021, 2021
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We evaluated how sequestration of soil carbon changes over the long term after converting native grasslands into croplands and also from annual cropping into trees. Soil carbon was reduced by cropping but increased with tree planting. This decrease in carbon storage with annual cropping happened over centuries, while trees increase soil carbon over just a few decades. Growing trees in long-term croplands emerged as a climate-change-mitigating action, effective even within a person’s lifetime.
Abdul-Wahab Mossa, Dawd Gashu, Martin R. Broadley, Sarah J. Dunham, Steve P. McGrath, Elizabeth H. Bailey, and Scott D. Young
SOIL, 7, 255–268, https://doi.org/10.5194/soil-7-255-2021, https://doi.org/10.5194/soil-7-255-2021, 2021
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Zinc deficiency is a widespread nutritional problem in human populations, especially in sub-Saharan Africa (SSA). Crop Zn depends in part on soil Zn. The Zn status of soils from the Amahara region, Ethiopia, was quantified by measuring pseudo-total, available, soluble and isotopically exchangeable Zn, and soil geochemical properties were assessed. Widespread phyto-available Zn deficiency was observed. The results could be used to improve agronomic interventions to tackle Zn deficiency in SSA.
Mirjam Schaller, Igor Dal Bo, Todd A. Ehlers, Anja Klotzsche, Reinhard Drews, Juan Pablo Fuentes Espoz, and Jan van der Kruk
SOIL, 6, 629–647, https://doi.org/10.5194/soil-6-629-2020, https://doi.org/10.5194/soil-6-629-2020, 2020
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In this study geophysical observations from ground-penetrating radar with pedolith physical and geochemical properties from pedons excavated in four study areas of the climate and ecological gradient in the Chilean Coastal Cordillera are combined. Findings suggest that profiles with ground-penetrating radar along hillslopes can be used to infer lateral thickness variations in pedolith horizons and to some degree physical and chemical variations with depth.
Marijke Struijk, Andrew P. Whitmore, Simon R. Mortimer, and Tom Sizmur
SOIL, 6, 467–481, https://doi.org/10.5194/soil-6-467-2020, https://doi.org/10.5194/soil-6-467-2020, 2020
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Crop residues are widely available on-farm resources containing carbon and nutrients, but, as soil amendments, their decomposition does not always benefit the soil. We applied mixtures of crop residues that are chemically different from each other and found significantly increased soil organic matter and available nitrogen levels. Applying crop residue mixtures has practical implications involving the removal, mixing and reapplication rather than simply returning crop residues to soils in situ.
W. Marijn van der Meij, Arnaud J. A. M. Temme, Jakob Wallinga, and Michael Sommer
SOIL, 6, 337–358, https://doi.org/10.5194/soil-6-337-2020, https://doi.org/10.5194/soil-6-337-2020, 2020
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We developed a model to simulate long-term development of soils and landscapes under varying rainfall and land-use conditions to quantify the temporal variation of soil patterns. In natural landscapes, rainfall amount was the dominant factor influencing soil variation, while for agricultural landscapes, landscape position became the dominant factor due to tillage erosion. Our model shows potential for simulating past and future developments of soils in various landscapes and climates.
Andre Carnieletto Dotto, Jose A. M. Demattê, Raphael A. Viscarra Rossel, and Rodnei Rizzo
SOIL, 6, 163–177, https://doi.org/10.5194/soil-6-163-2020, https://doi.org/10.5194/soil-6-163-2020, 2020
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The objective of this study was to develop a soil grouping system based on spectral, climate, and terrain variables with the aim of developing a quantitative way to classify soils. To derive the new system, we applied the above-mentioned variables using cluster analysis and defined eight groups or "soil environment groupings" (SEGs). The SEG system facilitated the identification of groups with similar characteristics using not only soil but also environmental variables for their distinction.
Daniel A. Petrash, Frantisek Buzek, Martin Novak, Bohuslava Cejkova, Pavel Kram, Tomas Chuman, Jan Curik, Frantisek Veselovsky, Marketa Stepanova, Oldrich Myska, Pavla Holeckova, and Leona Bohdalkova
SOIL, 5, 205–221, https://doi.org/10.5194/soil-5-205-2019, https://doi.org/10.5194/soil-5-205-2019, 2019
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Some 30 years after peak pollution-related soil acidification occurred in central Europe, the forest ecosystem of a small V-shaped mountain valley, UDL, was still out of chemical balance relative to the concurrent loads of anions and cations in precipitation. The spatial variability in soil solution chemistry provided evidence pointing to substrate variability, C and P bioavailability, and landscape as major controls on base metal leaching toward the subsoil level in N-saturated catchments.
Michael P. Ricketts, Rachel S. Poretsky, Jeffrey M. Welker, and Miquel A. Gonzalez-Meler
SOIL, 2, 459–474, https://doi.org/10.5194/soil-2-459-2016, https://doi.org/10.5194/soil-2-459-2016, 2016
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Soil microbial communities play a key role in the cycling of carbon (C) in Arctic tundra ecosystems through decomposition of organic matter (OM). Climate change predictions include increased temperature and snow accumulation, resulting in altered plant communities and soil conditions. To determine how soil bacteria may respond, we sequenced soil DNA from a long-term snow depth treatment gradient in Alaska. Results indicate that bacteria produce less OM-degrading enzymes under deeper snowpack.
Rebecca Swift, Liza Parkinson, Thomas Edwards, Regina Carr, Jen McComb, Graham W. O'Hara, Giles E. St. John Hardy, Lambert Bräu, and John Howieson
SOIL Discuss., https://doi.org/10.5194/soil-2016-33, https://doi.org/10.5194/soil-2016-33, 2016
Preprint retracted
Marcos H. Easdale
SOIL, 2, 129–134, https://doi.org/10.5194/soil-2-129-2016, https://doi.org/10.5194/soil-2-129-2016, 2016
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Zero Net Land Degradation (ZNLD) was proposed as a new global protocol to combat desertification. This framework aims at reducing the rate of global land degradation and increasing the rate of restoration of already degraded land. However, there is a narrow focus on land and soil, while an essential human dimension to the sustainability of drylands is lacking and should be more adequately tackled. I propose a complementary perspective based on the sustainable livelihood approach.
Jeffrey S. Buyer, Anne Schmidt-Küntzel, Matti Nghikembua, Jude E. Maul, and Laurie Marker
SOIL, 2, 101–110, https://doi.org/10.5194/soil-2-101-2016, https://doi.org/10.5194/soil-2-101-2016, 2016
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Savannas represent most of the world’s livestock grazing land and are suffering worldwide from bush encroachment and desertification. We studied soil under bush and grass in a bush-encroached savanna in Namibia. With bush removal, there were significant changes in soil chemistry and microbial community structure, but these changes gradually diminished with time. Our results indicate that the ecosystem can substantially recover over a time period of approximately 10 years following bush removal.
Alemayehu Adugna and Assefa Abegaz
SOIL, 2, 63–70, https://doi.org/10.5194/soil-2-63-2016, https://doi.org/10.5194/soil-2-63-2016, 2016
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The purpose of our study was to explore the effects of land use changes on the dynamics of soil properties and their implications for land degradation. The result indicates that cultivated land has a lower organic matter, total nitrogen, cation exchange capacity, pH, and exchangeable Ca2+ and Mg2+ contents than forestland and grazing land.
C. Thomas, A. Sexstone, and J. Skousen
SOIL, 1, 621–629, https://doi.org/10.5194/soil-1-621-2015, https://doi.org/10.5194/soil-1-621-2015, 2015
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Surface coal mining disrupts large areas of land and eliminates valuable hardwood forests. Restoring the land to a sustainable forest ecosystem with suitable soils is the goal of reclamation. Soil microbial activity is an indicator of restoration success. We found hydroseeding with herbaceous forage species and fertilization doubled tree growth and microbial biomass carbon (an indicator of microbial activity) compared to non-hydroseed areas. Hydroseeding is an important component of reclamation.
M. Holleran, M. Levi, and C. Rasmussen
SOIL, 1, 47–64, https://doi.org/10.5194/soil-1-47-2015, https://doi.org/10.5194/soil-1-47-2015, 2015
Cited articles
Albizua, A., Williams, A., Hedlund, K., and Pascual, U.: Crop rotations
including ley and manure can promote ecosystem services in conventional
farming systems, Appl. Soil Ecol., 95, 54–61,
https://doi.org/10.1016/j.apsoil.2015.06.003, 2015.
Anderson, J. P. E. and Domsch, K. H.: A physiological method for the
quantitative measurement of microbial biomass in soil, Soil Biol. Biochem.,
10, 215–221, https://doi.org/10.1016/0038-0717(78)90099-8, 1978.
Azooz, R. H., Arshad, M A., and Franzluebbers, A. J.: Pore Size Distribution
and Hydraulic Conductivity Affected by Tillage in Northwestern Canada, Soil
Sci. Soc. Am. J., 60, 1197–1201,
https://doi.org/10.2136/sssaj1996.03615995006000040034x, 1996.
Balesdent, J. and Balabane, M.: Major contribution of roots to soil carbon
storage inferred from maize cultivated soils, Soil Biol. Biochem., 28,
1261–1263, https://doi.org/10.1016/0038-0717(96)00112-5, 1996.
Balesdent, J., Chenu, C., and Balabane, M.: Relationship of soil organic
matter dynamics to physical protection and tillage, Soil Till. Res., 53,
215–230, https://doi.org/10.1016/S0167-1987(99)00107-5, 2000.
Bengough, A. G., McKenzie, B. M., Hallett, P. D., and Valentine, T. A.: Root
elongation, water stress, and mechanical impedance: a review of limiting
stresses and beneficial root tip traits, J. Exp. Bot., 62, 59–68,
https://doi.org/10.1093/jxb/erq350, 2011.
Birkhofer, K., Bezemer, T. M., Bloem, J., Bonkowski, M., Christensen, S.,
Dubois, D., Ekelund, F., Fließbach, A., Gunst, L., Hedlund, K.,
Mäder, P., Mikola, J., Robin, C., Setälä, H., Tatin-Froux, F.,
Van der Putten, W. H., and Scheu, S.: Long-term organic farming fosters below
and aboveground biota: Implications for soil quality, biological control and
productivity, Soil Biol. Biochem., 40, 2297–2308,
https://doi.org/10.1016/j.soilbio.2008.05.007, 2008.
Bockstaller, C., Girardin, P., and Van der Werf, H. M. G.: Use of
agro-ecological indicators for the evaluation of farming systems, Eur. J.
Agron., 7, 261–270, 1997.
Bronick, C. J. and Lal, R.: Soil structure and management: a review,
Geoderma, 124, 3–22, https://doi.org/10.1016/j.geoderma.2004.03.005, 2005.
Büchi, L., Georges, F., Walder, F., Banerjee, S., Keller, T., Six, J.,
van der Heijden, M., and Charles, R.: Potential of indicators to unveil the
hidden side of cropping system classification: actual differences and
similarities in cropping practices between conventional, no-till and organic
systems, Eur. J. Agron., in review, 2019.
Bünemann, E. K., Bongiorno, G., Creamer, R., Deyn, G. B. De,
Bünemann, E. K., Bongiorno, G., Bai, Z., Creamer, R. E., Deyn, G. De,
Goede, R. De, Fleskens, L., Geissen, V., Kuyper, T. W., and Mäder, P.:
Soil quality - A critical review, Soil Biol. Biochem., 120, 105–125,
https://doi.org/10.1016/j.soilbio.2018.01.030, 2018.
Busscher, W. J.: Adjustment of Flat-Tipped Penetrometer Resistance Data To a
Common Water Content, Trans. ASAE, 33, 519–524, https://doi.org/10.13031/2013.31360,
1990.
Buyanovsky, G. A. and Wagner, G. H.: Annual Cycles of Carbon Dioxide Level in
Soil Air, Soil Sci. Soc. Am. J., 47, 1139–1145,
https://doi.org/10.2136/sssaj1983.03615995004700060016x, 1983.
Cannell, R. Q., Belford, R. K., Gales, K., Thomson, R. J., and Webster, C.
P.: Effects of waterlogging and drought on winter wheat and winter barley
grown on a clay and a sandy loam soil, Plant Soil, 80, 53–66,
https://doi.org/10.1007/BF02232939, 1984.
Carter, M. R., Sanderson, J. B., Holmstrom, D. A., Ivany, J. A., and DeHaan,
K. R.: Influence of conservation tillage and glyphosate on soil structure and
organic carbon fractions through the cycle of a 3-year potato rotation in
Atlantic Canada, Soil Till. Res., 93, 206–221,
https://doi.org/10.1016/j.still.2006.04.004, 2007.
Celik, I.: Land-use effects on organic matter and physical properties of soil
in a southern Mediterranean highland of Turkey, Soil Till. Res., 83,
270–277, https://doi.org/10.1016/j.still.2004.08.001, 2005.
Chan, K. Y., Heenan, D. P., and So, H. B.: Sequestration of carbon and
changes in soil quality under conservation tillage on light-textured soils in
Australia: a review, Aust. J. Exp. Agr., 43, 325–334, https://doi.org/10.1071/EA02077,
2003.
Chen, G., Weil, R. R., and Hill, R. L.: Effects of compaction and cover crops
on soil least limiting water range and air permeability, Soil Till. Res.,
136, 61–69, https://doi.org/10.1016/j.still.2013.09.004, 2014.
Colombi, T., Braun, S., Keller, T., and Walter, A.: Artificial macropores
attract crop roots and enhance plant productivity on compacted soils, Sci.
Total Environ., 574, 1283–1293, https://doi.org/10.1016/j.scitotenv.2016.07.194, 2017.
Colombi, T., Torres, L. C., Walter, A., and Keller, T.: Feedbacks between
soil penetration resistance, root architecture and water uptake limit water
accessibility and crop growth – A vicious circle, Sci. Total Environ., 626,
1026–1035, https://doi.org/10.1016/j.scitotenv.2018.01.129, 2018.
Cotrufo, M. F., Wallenstein, M. D., Boot, C. M., Denef, K., and Paul, E.: The
Microbial Efficiency-Matrix Stabilization (MEMS) framework integrates plant
litter decomposition with soil organic matter stabilization?: do labile plant
inputs form stable soil organic matter?, Glob. Change Biol., 19, 988–995,
https://doi.org/10.1111/gcb.12113, 2013.
Cotrufo, M. F., Soong, J. L., Horton, A. J., Campbell, E. E., Haddix, M. L.,
Wall, D. H., and Parton, W. J.: Formation of soil organic matter via
biochemical and physical pathways of litter mass loss, Nat. Geosci., 8,
8–13, https://doi.org/10.1038/NGEO2520, 2015.
CSICM: Directive suisse 2010 de la branche sur la qualité du compost et
du digestat. Commission suisse de l'inspectorat du compostage et Comm.
suisse l'inspectorat du Compost. la méthanisation, 40 pp., 2010.
CTACF: Mise en oeuvre de la technique du Bois Raméal Fragmenté (BRF)
en agriculture wallonne, Cent. des Technol. Agron. Communauté
Française, 168 pp.,
2006.
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.
da Silva, A. P., Babujia, L. C., Franchini, J. C., Ralisch, R., Hungria, M.,
and Guimarães, M. de F.: Soil structure and its influence on microbial
biomass in different soil and crop management systems, Soil Till. Res., 142,
42–53, https://doi.org/10.1016/j.still.2014.04.006, 2014.
Dexter, A. R.: Amelioration of soil by natural processes, Soil Till. Res.,
20, 87–100, 1991.
Diacono, M. and Montemurro, F.: Long-term effects of organic amendments on
soil fertility. A review, Agron. Sustain. Dev., 30, 401–422,
https://doi.org/10.1051/agro/2009040, 2010.
Dresbøll, D. B., Thorup-Kristensen, K., McKenzie, B. M., Dupuy, L. X., and
Bengough, A. G.: Timelapse scanning reveals spatial variation in tomato
(Solanum lycopersicum L.) root elongation rates during partial
waterlogging, Plant Soil, 369, 467–477, https://doi.org/10.1007/s11104-013-1592-5, 2013.
Eavis, B. W.: Soil physical conditions affecting seedling root growth, Plant
Soil, 139, 66–89, 1972.
Garnczarska, M. and Bednarski, W.: Effect of a short-term hypoxic treatment
followed by re-aeration on free radicals level and antioxidative enzymes in
lupine roots, Plant Physiol. Biochem., 42, 233–240,
https://doi.org/10.1016/j.plaphy.2004.01.005, 2004.
Gattinger, A., Muller, A., Haeni, M., Skinner, C., Fliessbach, A., Buchmann,
N., Mader, P., Stolze, M., Smith, P., Scialabba, N. E.-H., and Niggli, U.:
Enhanced top soil carbon stocks under organic farming, P. Natl. Acad. Sci.
USA, 109, 18226–18231, https://doi.org/10.1073/pnas.1209429109, 2012.
Govaerts, B., Verhulst, N., Castellanos-Navarrete, A., Sayre, K. D., Dixon,
J., and Dendooven, L.: Conservation agriculture and soil carbon
sequestration: Between myth and farmer reality, CRC, Crit. Rev. Plant Sci.,
28, 97–122, https://doi.org/10.1080/07352680902776358, 2009.
Grable, A. R. and Siemer, E. G.: Effects of Bulk Density, Aggregate Size, and
Soil Water Suction on Oxygen Diffusion, Redox Potentials, and Elongation of
Corn Roots1, Soil Sci. Soc. Am. J., 32, 180–186, https://doi.org/10.2136/sssaj1968.03615995003200020011x, 1968.
Grzesiak, M. T., Ostrowska, A., Hura, K., Rut, G., Janowiak, F., Rzepka, A.,
Hura, T., and Grzesiak, S.: Interspecific differences in root architecture
among maize and triticale genotypes grown under drought, waterlogging and
soil compaction, Acta Physiol. Plant., 36, 3249–3261,
https://doi.org/10.1007/s11738-014-1691-9, 2014.
Heinemeyer, O., Insam, H., Kaiser, E. A., and Walenzik, G.: Soil microbial
biomass and respiration measurements: An automated technique based on
infra-red gas analysis, Plant Soil, 116, 191–195, https://doi.org/10.1007/BF02214547,
1989.
Horn, R. and Smucker, A.: Structure formation and its consequences for gas
and water transport in unsaturated arable and forest soils, Soil Till. Res.,
82, 5–14, https://doi.org/10.1016/j.still.2005.01.002, 2005.
Jin, K., Shen, J., Ashton, R. W., Dodd, I. C., Parry, M. A. J., and Whalley, W.
R.: How do roots elongate in a structured soil?, J. Exp. Bot., 64, 4761–77,
https://doi.org/10.1093/jxb/ert286, 2013.
Kahlon, M. S., Lal, R., and Ann-Varughese, M.: Twenty two years of tillage
and mulching impacts on soil physical characteristics and carbon
sequestration in Central Ohio, Soil Till. Res., 126, 151–158,
https://doi.org/10.1016/j.still.2012.08.001, 2013.
Kaiser, E. A., Mueller, T., Joergensen, R. G., Insam, H., and Heinemeyer, O.:
Evaluation of methods to estimate the soil microbial biomass and the
relationship with soil texture and organic matter, Soil Biol. Biochem., 24,
675–683, https://doi.org/10.1016/0038-0717(92)90046-Z, 1992.
Kätterer, T., Bolinder, M. A., Andrén, O., Kirchmann, H., and
Menichetti, L.: Roots contribute more to refractory soil organic matter than
above-ground crop residues, as revealed by a long-term field experiment, Agr.
Ecosyst. Environ., 141, 184–192, https://doi.org/10.1016/j.agee.2011.02.029, 2011.
Keiluweit, M., Nico, P. S., Kleber, M., and Fendorf, S.: Are oxygen
limitations under recognized regulators of organic carbon turnover in upland
soils?, Biogeochemistry, 127, 157–171, https://doi.org/10.1007/s10533-015-0180-6, 2016.
Keiluweit, M., Wanzek, T., Kleber, M., Nico, P., and Fendorf, S.: Anaerobic
microsites have an unaccounted role in soil carbon stabilization, Nat.
Commun., 8, 1–8, https://doi.org/10.1038/s41467-017-01406-6, 2017.
Kong, A. Y. Y. and Six, J.: Tracing Root vs. Residue Carbon into Soils from
Conventional and Alternative Cropping Systems, Soil Sci. Soc. Am. J., 74,
1201, https://doi.org/10.2136/sssaj2009.0346, 2010.
Koop-Jakobsen, K., Mueller, P., Meier, R. J., Liebsch, G., and Jensen, K.:
Plant-Sediment Interactions in Salt Marshes – An Optode Imaging Study of
O2, pH, and CO2 Gradients in the Rhizosphere, Front. Plant
Sci., 9, 1–11,
https://doi.org/10.3389/fpls.2018.00541, 2018.
Lal, R.: Soil Carbon Sequestration Impacts on Global Climate Change and Food
Security, Science, 304, 1623–7162, https://doi.org/10.1126/science.1097396, 2004.
Lavallee, J. M., Conant, R. T., Paul, E. A., and Cotrufo, R. T.:
Incorporation of shoot versus root-derived 13C and 15N
into mineral-associated organic matter fractions?: results of a soil slurry
incubation with dual-labelled plant material, Biogeochemistry, 137, 379–393,
https://doi.org/10.1007/s10533-018-0428-z, 2018.
Leifeld, J., Reiser, R., and Oberholzer, H. R.: Consequences of conventional
versus organic farming on soil carbon: Results from a 27-year field
experiment, Agron. J., 101, 1204–1218, https://doi.org/10.2134/agronj2009.0002, 2009.
Lesturgez, G., Poss, R., Hartmann, C., Bourdon, E., Noble, A., and
Development, L.: Roots of Stylosanthes hamata create macropores in the
compact layer of a sandy soil, Plant Soil, 260, 101–109, 2004.
Mäder, P., Fliessbach, A., Dubois, D., Gunst, L., Fried, P., and Niggli,
U.: Soil fertility and biodiversity in organic farming, Science, 296,
1694–1697, https://doi.org/10.1126/science.1071148, 2002.
Manzoni, S., Schimel, J. P., and Porporato, A.: Responses of soil microbial
communities to water stress?: results from a meta-analysis, Ecology, 93,
930–938, https://doi.org/10.1890/11-0026.1, 2012.
Martínez, I., Chervet, A., Weisskopf, P., Sturny, W. G., Etana, A.,
Stettler, M., Forkman, J., and Keller, T.: Two decades of no-till in the
Oberacker long-term fi eld experiment?: Part I. Crop yield, soil organic
carbon and nutrient distribution in the soil profile, Soil Till. Res., 163,
141–151, https://doi.org/10.1016/j.still.2016.05.021, 2016a.
Martínez, I., Chervet, A., Weisskopf, P., Sturny, W. G., Rek, J., and
Keller, T.: Two decades of no-till in the Oberacker long-term field
experiment: Part II. Soil porosity and gas transport parameters, Soil Till.
Res., 163, 130–140, 2016b.
Mendiburu, F. D.: agricolae: Statistical Procedures for Agricultural
Research, R Package Version 1.2-3, 2015.
Pinheiro, J., Bates, D., DebRoy, S., and Sarkar, J.: nlme: Linear and
Nonlinear Mixed Effects Models (Software), 2013.
Pires, L. F., Borges, J. A. R., Rosa, J. A., Cooper, M., Heck, R. J.,
Passoni, S., and Roque, W. L.: Soil structure changes induced by tillage
systems, Soil Till. Res., 165, 66–79, https://doi.org/10.1016/j.still.2016.07.010, 2017.
Porterfield, D. M. and Musgrave, M. E.: The tropic response of plant roots to
oxygen: Oxytropism in Pisum sativum L., Planta, 206, 1–6,
https://doi.org/10.1007/s004250050367, 1998.
Powlson, D. S., Stirling, C. M., Jat, M. L., Gerard, B. G., Palm, C. A.,
Sanchez, P. A., and Cassman, K. G.: Limited potential of no-till agriculture
for climate change mitigation, Nat. Clim. Change, 4, 678–683,
https://doi.org/10.1038/nclimate2292, 2014.
Qi, J., Marshall, J. D., and Mattson, K. G.: High soil carbon dioxide
concentrations inhibit root respiration of Douglas fir, New Phytol., 128,
435–442, 1994.
R Core Team: R: A Language and Environment for Statistical Computing,
available at: http://www.r-project.org (last access: 31 August 2018), 2017.
Rasmussen, C., Heckman, K., Wieder, W. R., Keiluweit, M., Lawrence, C. R.,
Berhe, A. A., Blankinship, J. C., Crow, S. E., Druhan, J. L., Hicks Pries, C.
E., Marin-Spiotta, E., Plante, A. F., Schädel, C., Schimel, J. P.,
Sierra, C. A., Thompson, A., and Wagai, R.: Beyond clay: towards an improved
set of variables for predicting soil organic matter content, Biogeochemistry,
137, 297–306, https://doi.org/10.1007/s10533-018-0424-3, 2018.
Rasool, R., Kukal, S. S., and Hira, G. S.: Soil organic carbon and physical
properties as affected by long-term application of FYM and inorganic
fertilizers in maize-wheat system, Soil Till. Res., 96, 64–72,
https://doi.org/10.1016/j.still.2008.05.015, 2007.
Rasse, D. P., Rumpel, C., and Dignac, M.-F.: Is soil carbon mostly root
carbon? Mechanisms for a specific stabilisation, Plant Soil, 269, 341–356,
https://doi.org/10.1007/s11104-004-0907-y, 2005.
Reynolds, W. D., Drury, C. F., Yang, X. M., and Tan, C. S.: Optimal soil
physical quality inferred through structural regression and parameter
interactions, Geoderma, 146, 466–474, https://doi.org/10.1016/j.geoderma.2008.06.017,
2008.
Rich, S. M. and Watt, M.: Soil conditions and cereal root system
architecture: review and considerations for linking Darwin and Weaver, J.
Exp. Bot., 64, 1193–208, https://doi.org/10.1093/jxb/ert043, 2013.
Schjonning, P. and Rasmussen, K. J.: Soil strength and soil pore
characteristics for direct drilled and ploughed soils, Soil Till. Res., 57,
69–82, https://doi.org/10.1016/S0167-1987(00)00149-5, 2000.
Sinaj, S. and Richner, W.: Principes de fertilisation des cultures agricoles
en Suisse (PRIF 2017), Rech. Agron. Suisse, 8, 1–45, 2017.
Smith, P., Martino, D., Cai, Z., Gwary, D., Janzen, H., Kumar, P., McCarl,
B., Ogle, S., O'Mara, F., Rice, C., Scholes, B., Sirotenko, O., Howden, M.,
McAllister, T., Pan, G., Romanenkov, V., Schneider, U., Towprayoon, S.,
Wattenbach, M., and Smith, J.: Greenhouse gas mitigation in agriculture,
Philos. T. R. Soc. B, 363, 789–813, https://doi.org/10.1098/rstb.2007.2184, 2008.
Soane, B. D.: The role of organic matter in soil compactibility: A review of
some practical aspects, Soil Till. Res., 16, 179–201,
https://doi.org/10.1016/0167-1987(90)90029-D, 1990.
Soil Survey Staff: Soil Survey Laboratory Information Manual, in: Soil Survey
Investigations Report No. 45, Version 2.0, edited by: Burt, R., United States
Department of Agriculture, Natural Resources Conservation Service, Lincoln,
Nebraska, 2011.
Stewart, C. E., Follett, R. F., Pruessner, E. G., Varvel, G. E., Vogel, K.
P., and Mitchell, R. B.: Nitrogen and harvest effects on soil properties
under rainfed switchgrass and no-till corn over 9 years: Implications for
soil quality, GCB Bioenergy, 7, 288–301, https://doi.org/10.1111/gcbb.12142, 2014.
Swiss Federal Council: Verordnung über die Direktzahlungen an die
Landwirtschaft (Direktzahlungsverordnung, DZV), 1–107, 2014.
Swiss Federal Research Stations: Referenzmethoden der Eidgenössischen
landwirtschaftlichen Forschungsanstalten: 2. Bodenuntersuchung zur
Standortcharakterisierung., edited by Agroscope Reckenholz-Tänikon,
Agroscope Reckenholz-Tänikon ART, Zurich, 1996.
Thomson, C. J., Colmer, T. D., Watkin, E. L. J., and Greenway, H.: Tolerance
of wheat (Triticum aestivum cvs. Gamenya and Kite) and triticale
(Triticosecale cv Muir) to waterlogging, New Phytol., 120, 335–344, 1992.
Valentine, T. A., Hallett, P. D., Binnie, K., Young, M. W., Squire, G. R.,
Hawes, C., and Bengough, G. A.: Soil strength and macropore volume limit root
elongation rates in many UK agricultural soils, Ann. Bot., 110, 259–270,
https://doi.org/10.1093/aob/mcs118, 2012.
Watkin, E. L., Thomson, C. J., and Greenway, H.: Root Development and
Aerenchyma Formation in Two Wheat Cultivars and One Triticale Cultivar Grown
in Stagnant Agar and Aerated Nutrient Solution, Ann. Bot., 81, 349–354,
1998.
Weisskopf, P., Reiser, R., Rek, J., and Oberholzer, H. R.: Effect of
different compaction impacts and varying subsequent management practices on
soil structure, air regime and microbiological parameters, Soil Till. Res.,
111, 65–74, https://doi.org/10.1016/j.still.2010.08.007, 2010.
Young, I. M., Blanchart, E., Chenu, C., Dangerfield, M., Fragosos, C.,
Grimaldi, M., Ingram, J., and Monrozier, L. J.: The interaction of soil biota
and soil structure under global change, Glob. Change Biol., 4, 703–712,
https://doi.org/10.1046/j.1365-2486.1998.00194.x, 1998.
Zomer, R. J., Bossio, D. A., Sommer, R., and Verchot, L. V.: Global
Sequestration Potential of Increased Organic Carbon in Cropland Soils, Sci.
Rep., 7, 1–8, https://doi.org/10.1038/s41598-017-15794-8, 2017.
Short summary
The role of soil aeration in carbon sequestration in arable soils has only been explored little, especially at the farm level. The current study, which was conducted on 30 fields that belong to individual farms, reveals a positive relationship between soil gas transport capability and soil organic carbon content. We therefore conclude that soil aeration needs to be accounted for when developing strategies for carbon sequestration in arable soil.
The role of soil aeration in carbon sequestration in arable soils has only been explored little,...