Articles | Volume 3, issue 1
https://doi.org/10.5194/soil-3-45-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/soil-3-45-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Soil conservation in the 21st century: why we need smart agricultural intensification
Gerard Govers
CORRESPONDING AUTHOR
KU Leuven, Department of Earth and Environmental Sciences,
Celestijnenlaan 200E, 3001 Leuven, Belgium
Roel Merckx
KU Leuven, Department of Earth and Environmental Sciences,
Celestijnenlaan 200E, 3001 Leuven, Belgium
Bas van Wesemael
Université Catholique de Louvain, Earth and Life Institute,
3 Place Louis Pasteur, 1348 Louvain-la-Neuve, Belgium
Kristof Van Oost
Université Catholique de Louvain, Earth and Life Institute,
3 Place Louis Pasteur, 1348 Louvain-la-Neuve, Belgium
Related authors
Benjamin Campforts, Wolfgang Schwanghart, and Gerard Govers
Earth Surf. Dynam., 5, 47–66, https://doi.org/10.5194/esurf-5-47-2017, https://doi.org/10.5194/esurf-5-47-2017, 2017
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Despite a growing interest in landscape evolution models, accuracy assessment of the numerical methods they are based on has received little attention. We test a higher-order flux-limiting finite-volume method to simulate river incision and tectonic displacement. We show that this scheme significantly influences the evolution of simulated landscapes and the spatial and temporal variability of erosion rates. Moreover, it allows for the simulation of lateral tectonic displacement on a fixed grid.
Jianlin Zhao, Kristof Van Oost, Longqian Chen, and Gerard Govers
Biogeosciences, 13, 4735–4750, https://doi.org/10.5194/bg-13-4735-2016, https://doi.org/10.5194/bg-13-4735-2016, 2016
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We used a novel approach to reassess erosion rates on the CLP. We found that both current average topsoil erosion rates and the maximum magnitude of the erosion-induced carbon sink are overestimated on the CLP. Although average topsoil losses on the CLP are still high, a major increase in agricultural productivity occurred since 1980. Hence, erosion is currently not a direct threat to agricultural productivity on the CLP but the long-term effects of erosion on soil quality remain important.
N. Geeraert, F. O. Omengo, G. Govers, and S. Bouillon
Biogeosciences, 13, 517–525, https://doi.org/10.5194/bg-13-517-2016, https://doi.org/10.5194/bg-13-517-2016, 2016
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Rivers transport a large amount of carbon as dissolved organic carbon (DOC). Our incubation experiments on water of the Tana River, Kenya, showed that microbial decomposition of 10–60 % of the initial DOC occurred within the first 24–48 h. Simultaneously, there was a decrease in isotopic composition, indicating that DOC derived from C4 vegetation is preferentially decomposed. This has implications for the assessment of vegetation in a catchment based on isotope signatures of riverine carbon.
Z. Wang, K. Van Oost, A. Lang, T. Quine, W. Clymans, R. Merckx, B. Notebaert, and G. Govers
Biogeosciences, 11, 873–883, https://doi.org/10.5194/bg-11-873-2014, https://doi.org/10.5194/bg-11-873-2014, 2014
Kristof Van Oost and Johan Six
Biogeosciences, 20, 635–646, https://doi.org/10.5194/bg-20-635-2023, https://doi.org/10.5194/bg-20-635-2023, 2023
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The direction and magnitude of the net erosion-induced land–atmosphere C exchange have been the topic of a big scientific debate for more than a decade now. Many have assumed that erosion leads to a loss of soil carbon to the atmosphere, whereas others have shown that erosion ultimately leads to a carbon sink. Here, we show that the soil carbon erosion source–sink paradox is reconciled when the broad range of temporal and spatial scales at which the underlying processes operate are considered.
Haicheng Zhang, Ronny Lauerwald, Pierre Regnier, Philippe Ciais, Kristof Van Oost, Victoria Naipal, Bertrand Guenet, and Wenping Yuan
Earth Syst. Dynam., 13, 1119–1144, https://doi.org/10.5194/esd-13-1119-2022, https://doi.org/10.5194/esd-13-1119-2022, 2022
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We present a land surface model which can simulate the complete lateral transfer of sediment and carbon from land to ocean through rivers. Our model captures the water, sediment, and organic carbon discharges in European rivers well. Application of our model in Europe indicates that lateral carbon transfer can strongly change regional land carbon budgets by affecting organic carbon distribution and soil moisture.
Pengzhi Zhao, Daniel Joseph Fallu, Sara Cucchiaro, Paolo Tarolli, Clive Waddington, David Cockcroft, Lisa Snape, Andreas Lang, Sebastian Doetterl, Antony G. Brown, and Kristof Van Oost
Biogeosciences, 18, 6301–6312, https://doi.org/10.5194/bg-18-6301-2021, https://doi.org/10.5194/bg-18-6301-2021, 2021
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We investigate the factors controlling the soil organic carbon (SOC) stability and temperature sensitivity of abandoned prehistoric agricultural terrace soils. Results suggest that the burial of former topsoil due to terracing provided an SOC stabilization mechanism. Both the soil C : N ratio and SOC mineral protection regulate soil SOC temperature sensitivity. However, which mechanism predominantly controls SOC temperature sensitivity depends on the age of the buried terrace soils.
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
SOIL, 7, 693–715, https://doi.org/10.5194/soil-7-693-2021, https://doi.org/10.5194/soil-7-693-2021, 2021
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We present a soil mid-infrared library with over 1800 samples from central Africa in order to facilitate soil analyses of this highly understudied yet critical area. Together with an existing continental library, we demonstrate a regional analysis and geographical extrapolation to predict total carbon and nitrogen. Our results show accurate predictions and highlight the value that the data contribute to existing libraries. Our library is openly available for public use and for expansion.
Lander Van Tricht, Philippe Huybrechts, Jonas Van Breedam, Alexander Vanhulle, Kristof Van Oost, and Harry Zekollari
The Cryosphere, 15, 4445–4464, https://doi.org/10.5194/tc-15-4445-2021, https://doi.org/10.5194/tc-15-4445-2021, 2021
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We conducted innovative research on the use of drones to determine the surface mass balance (SMB) of two glaciers. Considering appropriate spatial scales, we succeeded in determining the SMB in the ablation area with large accuracy. Consequently, we are convinced that our method and the use of drones to monitor the mass balance of a glacier’s ablation area can be an add-on to stake measurements in order to obtain a broader picture of the heterogeneity of the SMB of glaciers.
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
Earth Syst. Sci. Data, 13, 4133–4153, https://doi.org/10.5194/essd-13-4133-2021, https://doi.org/10.5194/essd-13-4133-2021, 2021
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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.
Florian Wilken, Peter Fiener, Michael Ketterer, Katrin Meusburger, Daniel Iragi Muhindo, Kristof van Oost, and Sebastian Doetterl
SOIL, 7, 399–414, https://doi.org/10.5194/soil-7-399-2021, https://doi.org/10.5194/soil-7-399-2021, 2021
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This study demonstrates the usability of fallout radionuclides 239Pu and 240Pu as a tool to assess soil degradation processes in tropical Africa, which is particularly valuable in regions with limited infrastructure and challenging monitoring conditions for landscape-scale soil degradation monitoring. The study shows no indication of soil redistribution in forest sites but substantial soil redistribution in cropland (sedimentation >40 cm in 55 years) with high variability.
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.
Sabura Shara, Rony Swennen, Jozef Deckers, Fantahun Weldesenbet, Laura Vercammen, Fassil Eshetu, Feleke Woldeyes, Guy Blomme, Roel Merckx, and Karen Vancampenhout
SOIL, 7, 1–14, https://doi.org/10.5194/soil-7-1-2021, https://doi.org/10.5194/soil-7-1-2021, 2021
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Nicknamed the
tree against hunger, enset (Ensete ventricosum) is an important multipurpose crop for the farming systems of the densely populated Gamo highlands in Ethiopia. Its high productivity and tolerance to droughts are major assets. Nevertheless, enset production is severely threatened by a wilting disease. This observational study aims to assess soil and leaf nutrients in enset gardens at different altitudes to see if fertility management can be linked to disease prevalence.
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.
Zhengang Wang, Jianxiu Qiu, and Kristof Van Oost
Geosci. Model Dev., 13, 4977–4992, https://doi.org/10.5194/gmd-13-4977-2020, https://doi.org/10.5194/gmd-13-4977-2020, 2020
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This study developed a spatially distributed carbon cycling model applicable in an eroding landscape. It includes all three carbon isotopes so that it is able to represent the carbon isotopic compositions. The model is able to represent the observations that eroding area is enriched in 13C and depleted of 14C compared to depositional area. Our simulations show that the spatial variability of carbon isotopic properties in an eroding landscape is mainly caused by the soil redistribution.
Samuel Bouchoms, Zhengang Wang, Veerle Vanacker, and Kristof Van Oost
SOIL, 5, 367–382, https://doi.org/10.5194/soil-5-367-2019, https://doi.org/10.5194/soil-5-367-2019, 2019
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Soil erosion has detrimental effects on soil fertility which can reduce carbon inputs coming from crops to soils. Our study integrated this effect into a model linking soil organic carbon (SOC) dynamics to erosion and crop productivity. When compared to observations, the inclusion of productivity improved SOC loss predictions. Over centuries, ignoring crop productivity evolution in models could result in underestimating SOC loss and overestimating C exchanged with the atmosphere.
François Clapuyt, Veerle Vanacker, Marcus Christl, Kristof Van Oost, and Fritz Schlunegger
Solid Earth, 10, 1489–1503, https://doi.org/10.5194/se-10-1489-2019, https://doi.org/10.5194/se-10-1489-2019, 2019
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Using state-of-the-art geomorphic techniques, we quantified a 2-order of magnitude discrepancy between annual, decadal, and millennial sediment fluxes of a landslide-affected mountainous river catchment in the Swiss Alps. Our results illustrate that the impact of a single sediment pulse is strongly attenuated at larger spatial and temporal scales by sediment transport. The accumulation of multiple sediment pulses has rather a measurable impact on the regional pattern of sediment fluxes.
He Zhang, Emilien Aldana-Jague, François Clapuyt, Florian Wilken, Veerle Vanacker, and Kristof Van Oost
Earth Surf. Dynam., 7, 807–827, https://doi.org/10.5194/esurf-7-807-2019, https://doi.org/10.5194/esurf-7-807-2019, 2019
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We evaluated the performance of a drone system to reconstruct 3-D topography. We used a direct georeferencing method to make the pictures have precise coordinates, which also improves the survey efficiency. With both consumer-grade and professional-grade camera and drone setups, we obtained centimetric accuracy, which provides a flexible application in topography remote sensing using drones.
Victoria Naipal, Philippe Ciais, Yilong Wang, Ronny Lauerwald, Bertrand Guenet, and Kristof Van Oost
Biogeosciences, 15, 4459–4480, https://doi.org/10.5194/bg-15-4459-2018, https://doi.org/10.5194/bg-15-4459-2018, 2018
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We seek to better understand the links between soil erosion by rainfall and the global carbon (C) cycle by coupling a soil erosion model to the C cycle of a land surface model. With this modeling approach we evaluate the effects of soil removal on soil C stocks in the presence of climate change and land use change. We find that accelerated soil erosion leads to a potential SOC removal flux of 74 ±18 Pg of C globally over the period AD 1850–2005, with significant impacts on the land C balance.
François Clapuyt, Veerle Vanacker, Fritz Schlunegger, and Kristof Van Oost
Earth Surf. Dynam., 5, 791–806, https://doi.org/10.5194/esurf-5-791-2017, https://doi.org/10.5194/esurf-5-791-2017, 2017
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This work aims at understanding the behaviour of an earth flow located in the Swiss Alps by reconstructing very accurately its topography over a 2-year period. Aerial photos taken from a drone, which are then processed using a computer vision algorithm, were used to derive the topographic datasets. Combination and careful interpretation of high-resolution topographic analyses reveal the internal mechanisms of the earthflow and its complex rotational structure, which is evolving over time.
Florian Wilken, Michael Sommer, Kristof Van Oost, Oliver Bens, and Peter Fiener
SOIL, 3, 83–94, https://doi.org/10.5194/soil-3-83-2017, https://doi.org/10.5194/soil-3-83-2017, 2017
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Model-based analyses of the effect of soil erosion on carbon (C) dynamics are associated with large uncertainties partly resulting from oversimplifications of erosion processes. This study evaluates the need for process-oriented modelling to analyse erosion-induced C fluxes in different catchments. The results underline the importance of a detailed representation of tillage and water erosion processes. For water erosion, grain-size-specific transport is essential to simulate lateral C fluxes.
Florian Wilken, Peter Fiener, and Kristof Van Oost
Earth Surf. Dynam., 5, 113–124, https://doi.org/10.5194/esurf-5-113-2017, https://doi.org/10.5194/esurf-5-113-2017, 2017
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This study presents a model that accounts for preferential erosion and transport of sediment and soil organic carbon in agricultural landscapes. We applied the model to a small catchment in Belgium for a period of 100 years. After a thorough model evaluation, these simulations shows that sediment and carbon export are highly episodic and that the temporal variability is largely influenced by selective erosion and deposition.
Benjamin Campforts, Wolfgang Schwanghart, and Gerard Govers
Earth Surf. Dynam., 5, 47–66, https://doi.org/10.5194/esurf-5-47-2017, https://doi.org/10.5194/esurf-5-47-2017, 2017
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Despite a growing interest in landscape evolution models, accuracy assessment of the numerical methods they are based on has received little attention. We test a higher-order flux-limiting finite-volume method to simulate river incision and tectonic displacement. We show that this scheme significantly influences the evolution of simulated landscapes and the spatial and temporal variability of erosion rates. Moreover, it allows for the simulation of lateral tectonic displacement on a fixed grid.
Marijn Van de Broek, Stijn Temmerman, Roel Merckx, and Gerard Govers
Biogeosciences, 13, 6611–6624, https://doi.org/10.5194/bg-13-6611-2016, https://doi.org/10.5194/bg-13-6611-2016, 2016
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The results of this study on the organic carbon (OC) stocks of tidal marshes show that variations in OC stocks along estuaries are important and should be taken into account to make accurate estimates of the total amount of OC stored in these ecosystems. Moreover, our results clearly show that most studies underestimate the variation in OC stocks along estuaries due to a shallow sampling depth, neglecting the variation in OC decomposition after burial along estuaries.
Jianlin Zhao, Kristof Van Oost, Longqian Chen, and Gerard Govers
Biogeosciences, 13, 4735–4750, https://doi.org/10.5194/bg-13-4735-2016, https://doi.org/10.5194/bg-13-4735-2016, 2016
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We used a novel approach to reassess erosion rates on the CLP. We found that both current average topsoil erosion rates and the maximum magnitude of the erosion-induced carbon sink are overestimated on the CLP. Although average topsoil losses on the CLP are still high, a major increase in agricultural productivity occurred since 1980. Hence, erosion is currently not a direct threat to agricultural productivity on the CLP but the long-term effects of erosion on soil quality remain important.
Victoria Naipal, Christian Reick, Kristof Van Oost, Thomas Hoffmann, and Julia Pongratz
Earth Surf. Dynam., 4, 407–423, https://doi.org/10.5194/esurf-4-407-2016, https://doi.org/10.5194/esurf-4-407-2016, 2016
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We present a new large-scale coarse-resolution sediment budget model that is compatible with Earth system models and simulates sediment dynamics in floodplains and on hillslopes. We applied this model on the Rhine catchment for the last millennium, and found that the model reproduces the spatial distribution of sediment storage and the scaling relationships as found in observations. We also identified that land use change explains most of the temporal variability in sediment storage.
N. Geeraert, F. O. Omengo, G. Govers, and S. Bouillon
Biogeosciences, 13, 517–525, https://doi.org/10.5194/bg-13-517-2016, https://doi.org/10.5194/bg-13-517-2016, 2016
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Rivers transport a large amount of carbon as dissolved organic carbon (DOC). Our incubation experiments on water of the Tana River, Kenya, showed that microbial decomposition of 10–60 % of the initial DOC occurred within the first 24–48 h. Simultaneously, there was a decrease in isotopic composition, indicating that DOC derived from C4 vegetation is preferentially decomposed. This has implications for the assessment of vegetation in a catchment based on isotope signatures of riverine carbon.
V. Naipal, C. Reick, J. Pongratz, and K. Van Oost
Geosci. Model Dev., 8, 2893–2913, https://doi.org/10.5194/gmd-8-2893-2015, https://doi.org/10.5194/gmd-8-2893-2015, 2015
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We adjusted the topographical and rainfall erosivity factors that are the triggers of erosion in the Revised Universal Soil Loss Equation (RUSLE) model to make the model better applicable at coarse resolution on a global scale. The adjusted RUSLE model compares much better to current high resolution estimates of soil erosion in the USA and Europe. It therefore provides a basis for estimating past and future global impacts of soil erosion on climate with the use of Earth system models.
F. Wiaux, M. Vanclooster, and K. Van Oost
Biogeosciences, 12, 4637–4649, https://doi.org/10.5194/bg-12-4637-2015, https://doi.org/10.5194/bg-12-4637-2015, 2015
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In this study, we highlight the role of soil physical conditions and gas transfer mechanisms and dynamics in the decomposition and storage of soil organic carbon in subsoil layers. To illustrate it, we measured the time series of soil temperature, moisture and CO2 concentration and calculated CO2 fluxes along 1 m depth soil profiles during 6 months throughout two contrasted soil profiles along a hillslope in the central loess belt of Belgium.
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.
Z. Wang, K. Van Oost, A. Lang, T. Quine, W. Clymans, R. Merckx, B. Notebaert, and G. Govers
Biogeosciences, 11, 873–883, https://doi.org/10.5194/bg-11-873-2014, https://doi.org/10.5194/bg-11-873-2014, 2014
T. Hoffmann, S. M. Mudd, K. van Oost, G. Verstraeten, G. Erkens, A. Lang, H. Middelkoop, J. Boyle, J. O. Kaplan, J. Willenbring, and R. Aalto
Earth Surf. Dynam., 1, 45–52, https://doi.org/10.5194/esurf-1-45-2013, https://doi.org/10.5194/esurf-1-45-2013, 2013
Related subject area
Soil as a resource
Long-term field experiments in Germany: classification and spatial representation
Adsorption to soils and biochemical characterization of commercial phytases
Development of a harmonised soil profile analytical database for Europe: a resource for supporting regional soil management
Arable soil formation and erosion: a hillslope-based cosmogenic nuclide study in the United Kingdom
Assessment and quantification of marginal lands for biomass production in Europe using soil-quality indicators
Physical, chemical, and mineralogical attributes of a representative group of soils from the eastern Amazon region in Brazil
Uncertainty indication in soil function maps – transparent and easy-to-use information to support sustainable use of soil resources
A systemic approach for modeling soil functions
World's soils are under threat
Global distribution of soil organic carbon – Part 1: Masses and frequency distributions of SOC stocks for the tropics, permafrost regions, wetlands, and the world
Meike Grosse, Wilfried Hierold, Marlen C. Ahlborn, Hans-Peter Piepho, and Katharina Helming
SOIL, 6, 579–596, https://doi.org/10.5194/soil-6-579-2020, https://doi.org/10.5194/soil-6-579-2020, 2020
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Agricultural long-term field experiments (LTFEs) are an important basis for soil and agricultural sciences. A compilation of metadata and research data from LTFEs in Germany shall enhance networking and simplify the access to this most valuable research infrastructure. The common analyses of similar LTFEs on different sites can broaden the results. Therefore, LTFEs were classified and their distribution in Germany was compared to three site classifications.
María Marta Caffaro, Karina Beatriz Balestrasse, and Gerardo Rubio
SOIL, 6, 153–162, https://doi.org/10.5194/soil-6-153-2020, https://doi.org/10.5194/soil-6-153-2020, 2020
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Four commercial phytases were evaluated as candidates to be used as biological fertilizer to release inorganic phosphorus (P) from phytates and other soil P organic forms. All phytases were able to release inorganic P throughout the pH and temperature ranges for optimum crop production and had a low affinity for the solid phase, with some differences between them. These results indicate that the use of phytases to complement P fertilization may be a feasible tool to enhance soil P availability.
Jeppe Aagaard Kristensen, Thomas Balstrøm, Robert J. A. Jones, Arwyn Jones, Luca Montanarella, Panos Panagos, and Henrik Breuning-Madsen
SOIL, 5, 289–301, https://doi.org/10.5194/soil-5-289-2019, https://doi.org/10.5194/soil-5-289-2019, 2019
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In a world of increasing pressure on our environment, large-scale knowledge about our soil resources is in high demand. We show how five decades of collaboration between EU member states resulted in a full-coverage soil profile analytical database for Europe (SPADE), with soil data provided by soil experts from each country. We show how the dataset can be applied to estimate soil organic carbon in Europe and suggest further improvement to this critical support tool in continental-scale policies.
Daniel L. Evans, John N. Quinton, Andrew M. Tye, Ángel Rodés, Jessica A. C. Davies, Simon M. Mudd, and Timothy A. Quine
SOIL, 5, 253–263, https://doi.org/10.5194/soil-5-253-2019, https://doi.org/10.5194/soil-5-253-2019, 2019
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Policy to conserve thinning arable soils relies on a balance between the rates of soil erosion and soil formation. Our knowledge of the latter is meagre. Here, we present soil formation rates for an arable hillslope, the first of their kind globally, and a woodland hillslope, the first of their kind in Europe. Rates range between 26 and 96 mm kyr−1. On the arable site, erosion rates are 2 orders of magnitude greater, and in a worst-case scenario, bedrock exposure could occur in 212 years.
Werner Gerwin, Frank Repmann, Spyridon Galatsidas, Despoina Vlachaki, Nikos Gounaris, Wibke Baumgarten, Christiane Volkmann, Dimitrios Keramitzis, Fotis Kiourtsis, and Dirk Freese
SOIL, 4, 267–290, https://doi.org/10.5194/soil-4-267-2018, https://doi.org/10.5194/soil-4-267-2018, 2018
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The need for biomass for energetic or material use is increasing parallel to the need to extend the production of food for a growing world population. This results in conflicts between both land use strategies. Use of marginal lands could solve this conflict, however, the understanding of marginal lands and the knowledge of their potentials are still not fully developed. We present an approach to assess land marginality based on soil quality and an estimation of land potentials all over Europe.
Edna Santos de Souza, Antonio Rodrigues Fernandes, Anderson Martins De Souza Braz, Fábio Júnior de Oliveira, Luís Reynaldo Ferracciú Alleoni, and Milton César Costa Campos
SOIL, 4, 195–212, https://doi.org/10.5194/soil-4-195-2018, https://doi.org/10.5194/soil-4-195-2018, 2018
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The study refers to a survey of the attributes of the main soil classes of the state of Pará, an eastern Amazon region in Brazil. These soils have good potential for agricultural use under natural conditions. In this study we observed that the soils are predominantly kaolinitic, but have relatively low aluminum and organic matter contents, with huge textural variability. The results enable a better understanding of eastern Amazonian soils, whose area reaches more than 1.2 million km2.
Lucie Greiner, Madlene Nussbaum, Andreas Papritz, Stephan Zimmermann, Andreas Gubler, Adrienne Grêt-Regamey, and Armin Keller
SOIL, 4, 123–139, https://doi.org/10.5194/soil-4-123-2018, https://doi.org/10.5194/soil-4-123-2018, 2018
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To maintain the soil resource, spatial information on soil multi-functionality is key. Soil function (SF) maps rate soils potentials to fulfill a certain function, e.g., nutrient regulation. We show how uncertainties in predictions of soil properties generated by digital soil mapping propagate into soil function maps, present possibilities to display this uncertainty information and show that otherwise comparable SF assessment methods differ in their behaviour in view of uncertainty propagation.
Hans-Jörg Vogel, Stephan Bartke, Katrin Daedlow, Katharina Helming, Ingrid Kögel-Knabner, Birgit Lang, Eva Rabot, David Russell, Bastian Stößel, Ulrich Weller, Martin Wiesmeier, and Ute Wollschläger
SOIL, 4, 83–92, https://doi.org/10.5194/soil-4-83-2018, https://doi.org/10.5194/soil-4-83-2018, 2018
Short summary
Short summary
This paper deals with the importance of soil for our terrestrial environment and the need to predict the impact of soil management on the multitude of functions that soil provides. We suggest to consider soil as a self-organized complex system and provide a concept of how this could be achieved. This includes how soil research, currently fragmented into a number of more or less disjunct disciplines, may be integrated to substantially contribute to a science-based evaluation of soil functions.
Luca Montanarella, Daniel Jon Pennock, Neil McKenzie, Mohamed Badraoui, Victor Chude, Isaurinda Baptista, Tekalign Mamo, Martin Yemefack, Mikha Singh Aulakh, Kazuyuki Yagi, Suk Young Hong, Pisoot Vijarnsorn, Gan-Lin Zhang, Dominique Arrouays, Helaina Black, Pavel Krasilnikov, Jaroslava Sobocká, Julio Alegre, Carlos Roberto Henriquez, Maria de Lourdes Mendonça-Santos, Miguel Taboada, David Espinosa-Victoria, Abdullah AlShankiti, Sayed Kazem AlaviPanah, Elsiddig Ahmed El Mustafa Elsheikh, Jon Hempel, Marta Camps Arbestain, Freddy Nachtergaele, and Ronald Vargas
SOIL, 2, 79–82, https://doi.org/10.5194/soil-2-79-2016, https://doi.org/10.5194/soil-2-79-2016, 2016
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The Intergovernmental Technical Panel on Soils has completed the first State of the World's Soil Resources Report. The gravest threats were identified for all the regions of the world. This assessment forms a basis for future soil monitoring. The quality of soil information available for policy formulation must be improved.
M. Köchy, R. Hiederer, and A. Freibauer
SOIL, 1, 351–365, https://doi.org/10.5194/soil-1-351-2015, https://doi.org/10.5194/soil-1-351-2015, 2015
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Soils contain 1062Pg organic C (SOC) in 0-1m depth based on the adjusted Harmonized World Soil Database. Different estimates of bulk density of Histosols cause an uncertainty in the range of -56/+180Pg. We also report the frequency distribution of SOC stocks by continent, wetland type, and permafrost type. Using additional estimates for frozen and deeper soils, global soils are estimated to contain 1325Pg SOC in 0-1m and ca. 3000Pg, including deeper layers.
Cited articles
Alexandratos, N. and Bruinsma, J.: World agriculture towards 2030/2050: The 2012 revision, ESA Working paper, 2012.
Angers, D. A. and Eriksen-Hamel, N. S.: Full-inversion tillage and organic carbon distribution in soil profiles: A meta-analysis, Soil Sci. Soc. Am. J., 72, 1370–1374, https://doi.org/10.2136/sssaj2007.0342, 2008.
Arnalds, A.: Approaches to Landcare–a century of soil conservation in Iceland, Land Degrad. Dev., 16, 113–125, 2005.
Bakker, M. M., Govers, G., Kosmas, C., Vanacker, V., van Oost, K., and Rounsevell, M.: Soil erosion as a driver of land-use change, Agr. Ecosyst. Environ., 105, 467–481, https://doi.org/10.1016/j.agee.2004.07.009, 2005.
Batjes, N. H.: Total carbon and nitrogen in the soils of the world, Eur. J. Soil Sci., 47, 151–163, https://doi.org/10.1111/j.1365-2389.1996.tb01386.x, 1996.
Boardman, J.: An average soil erosion rate for Europe: Myth or reality?, J. Soil Water Conserv., 53, 46–50, 1998.
Boardman, J., Ligneau, L., de Roo, A., and Vandaele, K.: Flooding of property by runoff from agricultural land in northwestern Europe, Geomorphology, 10, 183–196, 1994.
Bocco, G.: Traditional knowledge for soil conservation in central Mexico, J. Soil Water Conserv., 46, 346–348, 1991.
Boyd, C. and Slaymaker, T.: Re-examining the “more people less erosion” hypothesis: Special case or wider trend, Natural Resource Perspective, 63, 1–6, 2000.
Brouder, S. M. and Gomez-Macpherson, H.: The impact of conservation agriculture on smallholder agricultural yields: A scoping review of the evidence, Agr. Ecosyst. Environ., 187, 11–32, 2014.
Burney, J. A., Davis, S. J., and Lobell, D. B.: Greenhouse gas mitigation by agricultural intensification, P. Natl. Acad. Sci. USA, 107, 12052–12057, https://doi.org/10.1073/pnas.0914216107, 2010.
Cerdan, O., Govers, G., Le Bissonnais, Y., Van Oost, K., Poesen, J., Saby, N., Gobin, A., Vacca, A., Quinton, J., Auerswald, K., Klik, A., Kwaad, F., Raclot, D., Ionita, I., Rejman, J., Rousseva, S., Muxart, T., Roxo, M. J., and Dostal, T.: Rates and spatial variations of soil erosion in Europe: A study based on erosion plot data, Geomorphology, 122, 167–177, https://doi.org/10.1016/j.geomorph.2010.06.011, 2010.
Chamberlin, J., Jayne, T. S., and Headey, D.: Scarcity amidst abundance? Reassessing the potential for cropland expansion in Africa, Food Policy, 48, 51–65, https://doi.org/10.1016/j.foodpol.2014.05.002, 2014.
Chen, L., Wei, W., Fu, B., and Lü, Y.: Soil and water conservation on the Loess Plateau in China: review and perspective, Prog. Phys. Geogr., 31, 389–403, https://doi.org/10.1177/0309133307081290, 2007.
Christopher, S. F., Lal, R., and Mishra, U.: Regional study of no-till effects on carbon sequestration in the midwestern United States, Soil Sci. Soc. Am. J., 73, 207–216, https://doi.org/10.2136/sssaj2007.0336, 2009.
Collier, P. and Dercon, S.: African agriculture in 50 years: Smallholders in a rapidly changing world?, FAO Expert meeting on how to feed the world in 2050 (June 2009), FAO, 13 pp., 2009.
De Beenhouwer, M., Aerts, R., and Honnay, O.: A global meta-analysis of the biodiversity and ecosystem service benefits of coffee and cacao agroforestry, Agr. Ecosyst. Environ., 175, 1–7, 2013.
De Deyn, G. B. and Van der Putten, W. H.: Linking aboveground and belowground diversity, Trends Ecol. Evol., 20, 625–633, https://doi.org/10.1016/j.tree.2005.08.009, 2005.
Derpsch, R., Friedrich, T., Kassam, A., and Li, H.: Current status of adoption of no-till farming in the world and some of its main benefits, International Journal of Agricultural and Biological Engineering, 3, 1–25, 2010.
De Schutter, O.: Agroecology and the Right to Food, Report presented at the 16th Session of the United Nations Human Rights Council, Geneva, Switzerland, United Nations Human Rights Council, 2011.
Desmet, P. J. J. and Govers, G.: A GIS procedure for automatically calculating the USLE LS factor on topographically complex landscape units, J. Soil Water Conserv., 51, 427–433, 1996.
Döll, P., Fiedler, K., and Zhang, J.: Global-scale analysis of river flow alterations due to water withdrawals and reservoirs, Hydrol. Earth Syst. Sci., 13, 2413–2432, https://doi.org/10.5194/hess-13-2413-2009, 2009.
Eagle, A. J., Henry, L. R., Olander, L. P., Haugen-Kozyra, K., Millar, N., and Robertson, G. P.: Greenhouse Gas Mitigation Potential of Agricultural Land Management in the United States: A syntesis of the literature, Nicholas Institute for Environmental Policy Solutions, Duke University, 2012.
Ellis-Jones, J. and Sims, B.: An appraisal of soil conservation technologies on hillside farms in Honduras, Mexico and Nicaragua, Project Appraisal, 10, 125–134, 1995.
FAO and ITPS: Status of the World's Soil Resources – Main Report, FAO and ITPS, 608 pp., 2015.
Gerland, P., Raftery, A. E., Ševčíková, H., Li, N., Gu, D., Spoorenberg, T., Alkema, L., Fosdick, B. K., Chunn, J., Lalic, N., Bay, G., Buettner, T., Heilig, G. K., and Wilmoth, J.: World population stabilization unlikely this century, Science, 346, 234–237, https://doi.org/10.1126/science.1257469, 2014.
Giller, K. E., Witter, E., Corbeels, M., and Tittonell, P.: Conservation agriculture and smallholder farming in Africa: The heretics' view, Field Crop. Res., 114, 23–34, https://doi.org/10.1016/j.fcr.2009.06.017, 2009.
Glaeser, E.: Triumph of the City: How Our Greatest Invention Makes Us Richer, Smarter, Greener, Healthier and Happier, Pan Macmillan, 2011.
Govers, G., Merckx, R., Van Oost, K., and van Wesemael, B.: Managing Soil Organic Carbon for Global Benefits: a STAP Technical Report, Global Environmental Facility, Washington, D.C., 70 pp., 2013.
Govers, G., Van Oost, K., and Wang, Z.: Scratching the Critical Zone: The Global Footprint of Agricultural Soil Erosion, Procedia Earth and Planetary Science, 10, 313–318, https://doi.org/10.1016/j.proeps.2014.08.023, 2014.
Grace, P. R., Antle, J., Aggarwal, P. K., Ogle, S., Paustian, K., and Basso, B.: Soil carbon sequestration and associated economic costs for farming systems of the Indo-Gangetic Plain: A meta-analysis, Agr. Ecosyst. Environ., 146, 137–146, https://doi.org/10.1016/j.agee.2011.10.019, 2012.
Harris, D. and Orr, A.: Is rainfed agriculture really a pathway from poverty?, Agr. Syst., 123, 84–96, 2014.
Henao, J. and Baanante, C.: Agricultural production and soil nutrient mining in Africa: implications for resource conservation and policy development, IFDC-AN International Center for Soil Fertility and Agricultural Development, 2006.
Hiederer, R. and Köchyl, M.: Global soil organic carbon estimates and the harmonized world soil database, Luxembourg EUR 25225EN, 79 pp., 2012.
Hornbeck, R.: The enduring impact of the American dust bowl: Short-and long-run adjustments to environmental catastrophe, The American Economic Review, 1477–1507, 2012.
Imwangana, F. M., Vandecasteele, I., Trefois, P., Ozer, P., and Moeyersons, J.: The origin and control of mega-gullies in Kinshasa (DR Congo), Catena, 125, 38–49, 2015.
Janosky, J. S., Young, D. L., and Schillinger, W. F.: Economics of conservation tillage in a wheat–fallow rotation, Agron. J., 94, 527–531, 2002.
Johnson, L. C.: Soil loss tolerance: Fact or myth, J. Soil Water Conserv., 42, 155–160, 1987.
Keating, B. A., Carberry, P. S., Bindraban, P. S., Asseng, S., Meinke, H., and Dixon, J.: Eco-efficient agriculture: Concepts, challenges, and opportunities, Crop Science, 50, S-109–S-119, https://doi.org/10.2135/cropsci2009.10.0594, 2010.
Knowler, D. and Bradshaw, B.: Farmers' adoption of conservation agriculture: A review and synthesis of recent research, Food Policy, 32, 25–48, https://doi.org/10.1016/j.foodpol.2006.01.003, 2007.
Knowler, D., Bradshaw, B., and Gordon, D.: The economics of conservation agriculture, Land and Water Division, FAO, Rome, 2001.
Kok, H., Papendick, R., and Saxton, K. E.: STEEP: Impact of long-term conservation farming research and education in Pacific Northwest wheatlands, J. Soil Water Conserv., 64, 253–264, 2009.
Krajick, K.: Green farming by the Incas?, Science, 281, 322–322, 1998.
Lahmar, R.: Adoption of conservation agriculture in Europe: lessons of the KASSA project, Land Use Policy, 27, 4–10, 2010.
Lassaletta, L., Billen, G., Grizzetti, B., Anglade, J., and Garnier, J.: 50 year trends in nitrogen use efficiency of world cropping systems: the relationship between yield and nitrogen input to cropland, Environ. Res. Lett., 9, 105011, https://doi.org/10.1088/1748-9326/9/10/105011, 2014.
Le Quere, C., Raupach, M. R., Canadell, J. G., Marland, G., Bopp, L., Ciais, P., Conway, T. J., Doney, S. C., Feely, R. A., Foster, P., Friedlingstein, P., Gurney, K., Houghton, R. A., House, J. I., Huntingford, C., Levy, P. E., Lomas, M. R., Majkut, J., Metzl, N., Ometto, J. P., Peters, G. P., Prentice, I. C., Randerson, J. T., Running, S. W., Sarmiento, J. L., Schuster, U., Sitch, S., Takahashi, T., Viovy, N., van der Werf, G. R., and Woodward, F. I.: Trends in the sources and sinks of carbon dioxide, Nat. Geosci., 2, 831–836, https://doi.org/10.1038/ngeo689, 2009.
Leys, A., Govers, G., Gillijns, K., Berckmoes, E., and Takken, I.: Scale effects on runoff and erosion losses from arable land under conservation and conventional tillage: The role of residue cover, J. Hydrol., 390, 143–154, https://doi.org/10.1016/j.jhydrol.2010.06.034, 2010.
Lilin, C.: Histoire de la restauration des terrains en montagne au 19ème siècle, Cahiers ORSTOM, Série Pédologie, 22, 139–145, 1986.
Lu, C. H. and van Ittersum, M. K.: A trade-off analysis of policy objectives for Ansai, the Loess Plateau of China, Agr. Ecosyst. Environ., 102, 235–246, https://doi.org/10.1016/j.agee.2003.09.023, 2004.
Lutz, W. and Kc, S.: Dimensions of global population projections: what do we know about future population trends and structures?, Philos. T. R. Soc. B, 365, 2779–2791, https://doi.org/10.1098/rstb.2010.0133, 2010.
Mader, 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.
Mekuria, W., Veldkamp, E., Haile, M., Nyssen, J., Muys, B., and Gebrehiwot, K.: Effectiveness of exclosures to restore degraded soils as a result of overgrazing in Tigray, Ethiopia, J. Arid Environ., 69, 270–284, https://doi.org/10.1016/j.jaridenv.2006.10.009, 2007.
Minasny, B., McBratney, A., Hong, S. Y., Sulaeman, Y., Kim, M. S., Zhang, Y. S., Kim, Y. H., and Han, K. H.: Continuous rice cropping has been sequestering carbon in soils in Java and South Korea for the past 30 years, Global Biogeochem. Cy., 26, 1–8, https://doi.org/10.1029/2012GB004406, 2012.
Montgomery, D. R.: Soil erosion and agricultural sustainability, P. Natl. Acad. Sci. USA, 104, 13268–13272, https://doi.org/10.1073/pnas.0611508104, 2007.
Mueller, N. D., Gerber, J. S., Johnston, M., Ray, D. K., Ramankutty, N., and Foley, J. A.: Closing yield gaps through nutrient and water management, Nature, 490, 254–257, 2012.
Napier, T. L., Boardman, J., Foster, I., and Dearing, J.: The evolution of US soil-conservation policy: from voluntary adoption to coercion, Soil erosion on agricultural land, Proceedings of a workshop sponsored by the British Geomorphological Research Group, Coventry, UK, January 1989, 627–644, 1990.
Nearing, M. A.: A single, continuous function for slope steepness influence on soil loss, Soil Sci. Soc. Am. J., 61, 917–919, 1997.
Neumann, K., Verburg, P. H., Stehfest, E., and Müller, C.: The yield gap of global grain production: A spatial analysis, Agr. Syst., 103, 316–326, 2010.
NRCS: 2007 National Resources Inventory – Soil Erosion on Cropland, 29, 2010.
Nyssen, J., Poesen, J., Gebremichael, D., Vancampenhout, K., D'Aes, M., Yihdego, G., Govers, G., Leirs, H., Moeyersons, J., Naudts, J., Haregeweyn, N., Haile, M., and Deckers, J.: Interdisciplinary on-site evaluation of stone bunds to control soil erosion on cropland in Northern Ethiopia, Soil Till. Res., 94, 151–163, https://doi.org/10.1016/j.still.2006.07.011, 2007.
Nyssen, J., Clymans, W., Poesen, J., Vandecasteele, I., De Raets, S., Haregeweyn, N., Naudts, J., Hadera, A., Moeyersons, J., Haile, M., and Deckers, J.: How soil conservation affects the catchment sediment budget – a comprehensive study in the north Ethiopian highlands, Earth Surf. Proc. Land., 34, 1216–1233, https://doi.org/10.1002/Esp.1805, 2009.
Oorts, K., Bossuyt, H., Labreuche, J., Merckx, R., and Nicolardot, B.: Carbon and nitrogen stocks in relation to organic matter fractions, aggregation and pore size distribution in no-tillage and conventional tillage in northern France, Eur. J. Soil Sci., 58, 248–259, https://doi.org/10.1111/j.1365-2389.2006.00832.x, 2007.
Ostrom, E.: A general framework for analyzing sustainability of social-ecological systems, Science, 325, 419–422, https://doi.org/10.1126/science.1172133, 2009.
Peiretti, R. and Dumanski, J.: The transformation of agriculture in Argentina through soil conservation, Int. Soil Water Conserv. Res., 2, 14–20, https://doi.org/10.1016/S2095-6339(15)30010-1, 2014.
Perlman, J. E.: The metamorphosis of marginality: four generations in the favelas of Rio de Janeiro, Ann. Am. Acad. Polit. SS., 606, 154–177, 2006.
Phalan, B., Balmford, A., Green, R. E., and Scharlemann, J. R. P. W.: Minimising the harm to biodiversity of producing more food globally, Food Policy, 36, S62–S71, 2011a.
Phalan, B., Onial, M., Balmford, A., and Green, R. E.: Reconciling food production and biodiversity conservation: Land sharing and land sparing compared, Science, 333, 1289–1291, https://doi.org/10.1126/science.1208742, 2011b.
Pittelkow, C. M., Linquist, B. A., Lundy, M. E., Liang, X., Van Groenigen, K. J., Lee, J., Van Gestel, N., Six, J., Venterea, R. T., and Van Kessel, C.: When does no-till yield more? A global meta-analysis, Field Crop. Res., 183, 156–168, 2015.
Poeplau, C., Don, A., Vesterdal, L., Leifeld, J., Van Wesemael, B., Schumacher, J., and Gensior, A.: Temporal dynamics of soil organic carbon after land-use change in the temperate zone – carbon response functions as a model approach, Glob. Change Biol., 17, 2415–2427, https://doi.org/10.1111/j.1365-2486.2011.02408.x, 2011.
Poesen, J., Nachtergaele, J., Verstraeten, G., and Valentin, C.: Gully erosion and environmental change: importance and research needs, Catena, 50, 91–133, 2003.
Posthumus, H. and Stroosnijder, L.: To terrace or not: the short-term impact of bench terraces on soil properties and crop response in the Peruvian Andes, Environment, Development and Sustainability, 12, 263–276, 2010.
Quang, D. V., Schreinemachers, P., and Berger, T.: Ex-ante assessment of soil conservation methods in the uplands of Vietnam: An agent-based modeling approach, Agr. Syst., 123, 108–119, https://doi.org/10.1016/j.agsy.2013.10.002, 2014.
Quinton, J. N., Govers, G., Van Oost, K., and Bardgett, R. D.: The impact of agricultural soil erosion on biogeochemical cycling, Nat. Geosci., 3, 311–314, https://doi.org/10.1038/Ngeo838, 2010.
Ramachandran Nair, P. K., Mohan Kumar, B., and Nair, V. D.: Agroforestry as a strategy for carbon sequestration, J. Plant Nutr. Soil Sci., 172, 10–23, https://doi.org/10.1002/jpln.200800030, 2009.
Ramankutty, N., Evan, A. T., Monfreda, C., and Foley, J. A.: Farming the planet: 1. Geographic distribution of global agricultural lands in the year 2000, Global Biogeochem. Cy., 22, GB1003, https://doi.org/10.1029/2007GB002952, 2008.
Rijsdijk, A., Bruijnzeel, L. A. S., and Sutoto, C. K.: Runoff and sediment yield from rural roads, trails and settlements in the upper Konto catchment, East Java, Indonesia, Geomorphology, 87, 28–37, https://doi.org/10.1016/j.geomorph.2006.06.040, 2007.
Robb, G.: The discovery of France, Pan Macmillan, 2008.
Rockström, J., Lannerstad, M., and Falkenmark, M.: Assessing the water challenge of a new green revolution in developing countries, P. Natl. Acad. Sci. USA, 104, 6253–6260, https://doi.org/10.1073/pnas.0605739104, 2007.
Sanchez, P. A.: Tripling crop yields in tropical Africa, Nat. Geosci., 3, 299–300, 2010.
Sattari, S. Z., Bouwman, A. F., Giller, K. E., and van Ittersum, M. K.: Residual soil phosphorus as the missing piece in the global phosphorus crisis puzzle, P. Natl. Acad. Sci. USA, 109, 6348–6353, 2012.
Saunders, D.: Arrival City: How the Largest Migration in History Is Reshaping Our World, Knopf Doubleday Publishing Group, 2011.
Schneider, M. K., Lüscher, G., Jeanneret, P., Arndorfer, M., Ammari, Y., Bailey, D., Balázs, K., Báldi, A., Choisis, J.-P., and Dennis, P.: Gains to species diversity in organically farmed fields are not propagated at the farm level, Nat. Commun., 5, 4151, https://doi.org/10.1038/ncomms5151, 2014.
Sendzimir, J., Reij, C. P., and Magnuszewski, P.: Rebuilding resilience in the Sahel: regreening in the Maradi and Zinder regions of Niger, Ecol. Soc., 16, 1, https://doi.org/10.5751/ES-04198-160301, 2011.
Smaling, E. M. A., Stoorvogel, J. J., and Windmeijer, P. N.: Calculating soil nutrient balances in Africa at different scales, Fert. Res., 35, 237–250, https://doi.org/10.1007/bf00750642, 1993.
Sterk, G.: Causes, consequences and control of wind erosion in Sahelian Africa: a review, Land Degrad. Dev., 14, 95–108, 2003.
Stockmann, U., Minasny, B., and McBratney, A. B.: How fast does soil grow?, Geoderma, 216, 48–61, 2014.
Stone, J. R., Gilliam, J. W., Cassel, D. K., Daniels, R. B., Nelson, L. A., and Kleiss, H. J.: Effect of erosion and landscape position on the productivity of Piedmont soils, Soil Sci. Soc. Am. J., 49, 987–991, 1985.
Tiffen, M., Mortimore, M., and Gichuki, F.: More People, Less Erosion: Environmental Recovery in Kenya, John Wiley & Sons Ltd, 1994.
Tilman, D., Balzer, C., Hill, J., and Befort, B. L.: Global food demand and the sustainable intensification of agriculture, P. Natl. Acad. Sci. USA, 108, 20260–20264, https://doi.org/10.1073/pnas.1116437108, 2011.
Torri, D. and Poesen, J.: Predictability and uncertainty of the soil erodibility factor using a global dataset, Catena, 31, 1–22, 1997.
Twomlow, S., Rohrbach, D., Dimes, J., Rusike, J., Mupangwa, W., Ncube, B., Hove, L., Moyo, M., Mashingaidze, N., and Mahposa, P.: Micro-dosing as a pathway to Africa's Green Revolution: evidence from broad-scale on-farm trials, Nutr. Cycl. Agroecosys., 88, 3–15, 2010.
United Nations: World Urbanization Prospects 2014: Highlights, United Nations Publications, 2014.
Valentin, C., Agus, F., Alamban, R., Boosaner, A., Bricquet, J.-P., Chaplot, V., De Guzman, T., De Rouw, A., Janeau, J.-L., and Orange, D.: Runoff and sediment losses from 27 upland catchments in Southeast Asia: Impact of rapid land use changes and conservation practices, Agr. Ecosyst. Environ., 128, 225–238, 2008.
Vanacker, V., Molina, A., Govers, G., Poesen, J., and Deckers, J.: Spatial variation of suspended sediment concentrations in a tropical Andean river system: The Paute River, southern Ecuador, Geomorphology, 87, 53–67, https://doi.org/10.1016/j.geomorph.2006.06.042, 2007a.
Vanacker, V., von Blanckenburg, F., Govers, G., Molina, A., Poesen, J., Deckers, J., and Kubik, P.: Restoring dense vegetation can slow mountain erosion to near natural benchmark levels, Geology, 35, 303–306, https://doi.org/10.1130/G23109a.1, 2007b.
VandenBygaart A. J., Bremer, E., McConkey, B. G., Janzen, H. H., Angers, D. A., Carter, M. R., Drury, C. F., Lafond, G. P., and McKenzie, R. H.: Soil organic carbon stocks on long-term agroecosystem experiments in Canada, Can. J. Soil Sci., 90, 543–550, https://doi.org/10.4141/cjss10028, 2010.
Van den Putte, A., Govers, G., Diels, J., Gillijns, K., and Demuzere, M.: Assessing the effect of soil tillage on crop growth: A meta-regression analysis on European crop yields under conservation agriculture, Eur. J. Agron., 33, 231–241, https://doi.org/10.1016/j.eja.2010.05.008, 2010.
Van Oost, K., Quine, T. A., Govers, G., De Gryze, S., Six, J., Harden, J. W., Ritchie, J. C., McCarty, G. W., Heckrath, G., Kosmas, C., Giraldez, J. V., da Silva, J. R. M., and Merckx, R.: The impact of agricultural soil erosion on the global carbon cycle, Science, 318, 626–629, https://doi.org/10.1126/science.1145724, 2007.
Van Rompaey, A. J. J., Govers, G., Van Hecke, E., and Jacobs, K.: The impacts of land use policy on the soil erosion risk: a case study in central Belgium, Agr. Ecosyst. Environ., 83, 83–94, 2001.
Van Rompaey, A. J. J., Govers, G., and Puttemans, C.: Modelling land use changes and their impact on soil erosion and sediment supply to rivers, Earth Surf. Proc. Land., 27, 481–494, https://doi.org/10.1002/Esp.335, 2002.
Verbruggen, E., Roling, W. F. M., Gamper, H. A., Kowalchuk, G. A., Verhoef, H. A., and van der Heijden, M. G. A.: Positive effects of organic farming on below-ground mutualists: large-scale comparison of mycorrhizal fungal communities in agricultural soils, New Phytol., 186, 968–979, https://doi.org/10.1111/j.1469-8137.2010.03230.x, 2010.
Verheijen, F. G., Jones, R. J., Rickson, R., and Smith, C.: Tolerable versus actual soil erosion rates in Europe, Earth-Sci. Rev., 94, 23–38, 2009.
Yang, D. W., Kanae, S., Oki, T., Koike, T., and Musiake, K.: Global potential soil erosion with reference to land use and climate changes, Hydrol. Process., 17, 2913–2928, https://doi.org/10.1002/hyp.1441, 2003.
Zentner, R., McConkey, B., Campbell, C., Dyck, F., and Selles, F.: Economics of conservation tillage in the semiarid prairie, Can. J. Plant Sci., 76, 697–705, 1996.
Zhang, X., Davidson, E. A., Mauzerall, D. L., Searchinger, T. D., Dumas, P., and Shen, Y.: Managing nitrogen for sustainable development, Nature, 528, 51–59, https://doi.org/10.1038/nature15743, 2015.
Zhao, J., Van Oost, K., Chen, L., and Govers, G.: Moderate topsoil erosion rates constrain the magnitude of the erosion-induced carbon sink and agricultural productivity losses on the Chinese Loess Plateau, Biogeosciences, 13, 4735–4750, https://doi.org/10.5194/bg-13-4735-2016, 2016.
Short summary
We discuss pathways towards better soil protection in the 21st century. The efficacy of soil conservation technology is not a fundamental barrier for a more sustainable soil management. However, soil conservation is generally not directly beneficial to the farmer. We believe that the solution of this conundrum is a rapid, smart intensification of agriculture in the Global South. This will reduce the financial burden and will, at the same time, allow more effective conservation.
We discuss pathways towards better soil protection in the 21st century. The efficacy of soil...