-
Improving measurements of microbial growth, death, and turnover by accounting for extracellular DNA in soils Soil (IF 5.8) Pub Date : 2024-07-19 Jörg Schnecker, Theresa Böckle, Julia Horak, Victoria Martin, Taru Sandén, Heide Spiegel
Abstract. Microbial respiration, growth, and turnover are driving processes in the formation and decomposition of soil organic matter. In contrast to respiration and growth, microbial turnover and death currently lack distinct methods to be determined. Here we propose a new approach to determine microbial death rates and to improve measurements of microbial growth. By combining sequential DNA extraction
-
Can corporate supply chain sustainability standards contribute to soil protection? Soil (IF 5.8) Pub Date : 2024-07-18 Jan Frouz, Vojtěch Čemus, Jaroslava Frouzová, Alena Peterková, Vojtěch Kotecký
Abstract. Companies increasingly view soil degradation in their supply chains as a commercial risk. They have applied sustainability standards to manage environmental risks stemming from suppliers' farming operations. To examine the application of supply chain sustainability standards in soil protection, we conducted a study using global data on existing sustainability standards and their use in the
-
Isotopic exchangeability reveals that soil phosphate is mobilised by carboxylate anions whereas acidification had the reverse effect Soil (IF 5.8) Pub Date : 2024-07-18 Siobhan Staunton, Chiara Pistocchi
Abstract. Mineral P is an increasingly scarce resource and therefore the mobilisation of legacy soil P must be optimised to maintain soil fertility. We have used isotopic exchangeability to probe the lability of native soil P in four contrasting soils following acidification and the addition of carboxylate anions (citrate and oxalate) in soil suspension. Acidification tended to cause immobilisation
-
Conquering Soil Acidification: The Synergistic Effects of Basalt Powder, Lime, and PAM Soil (IF 5.8) Pub Date : 2024-07-16 Qianmei Zhang, Xiuhong Peng, Hongxia Zhu
Abstract. Soil acidification poses a substantial threat to agricultural productivity by releasing salt ions, diminishing soil fertility, and increasing susceptibility to aluminum toxicity. The aim of the study was to investigate the potential improvement of acid yellow soil through the combined application of basalt powder, lime, and polyacrylamide (PAM). Herein, 0.1 g mixed basalt powder and CaO with
-
Soil is a major contributor to global greenhouse gas emissions and climate change Soil (IF 5.8) Pub Date : 2024-07-15 Peter Martin Kopittke, Ram C. Dalal, Brigid A. McKenna, Pete Smith, Peng Wang, Zhe Weng, Frederik J. T. van der Bom, Neal W. Menzies
Abstract. It is unequivocal that human activities have increased emissions of greenhouse gases, that this is causing warming, and that these changes will be irreversible for centuries to millennia. Here, we show that our near-complete reliance on soil to produce the rapidly increasing quantities of food being demanded by humans has caused soil to release profound amounts of greenhouse gases that are
-
Investigating the synergistic potential of Si and biochar to immobilize Ni in a Ni-contaminated calcareous soil after Zea mays L. cultivation Soil (IF 5.8) Pub Date : 2024-07-09 Hamid Reza Boostani, Ailsa G. Hardie, Mahdi Najafi-Ghiri, Ehsan Bijanzadeh, Dariush Khalili, Esmaeil Farrokhnejad
Abstract. In Iran, a significant percentage of agricultural soils are contaminated with a range of potentially toxic elements (PTEs), including Ni, which need to be remediated to prevent their entry into the food chain. Silicon (Si) is a beneficial plant element that has been shown to mitigate the effects of PTEs on crops. Biochar is a soil amendment that sequesters soil carbon and that can immobilize
-
Freeze-thaw processes correspond to the protection-loss of soil organic carbon through regulating pore structure of aggregates in alpine ecosystems Soil (IF 5.8) Pub Date : 2024-07-08 Ruizhe Wang, Xia Hu
Abstract. Seasonal freeze‒thaw (FT) processes alter soil formation and causes changes in soil structure in alpine ecosystems. Soil aggregates are basic soil structural units and play a crucial role in soil organic carbon (SOC) protection and microbial habitation. However, the impact of seasonal FT processes on pore structure and its impact on SOC fractions have been overlooked. This study characterized
-
High capacity of integrated crop–pasture systems to preserve old soil carbon evaluated in a 60-year-old experiment Soil (IF 5.8) Pub Date : 2024-07-05 Maximiliano González-Sosa, Carlos A. Sierra, J. Andrés Quincke, Walter E. Baethgen, Susan Trumbore, M. Virginia Pravia
Abstract. Integrated crop–pasture rotational systems can store larger soil organic carbon (SOC) stocks in the topsoil (0–20 cm) than continuous grain cropping. The aim of this study was to identify if the main determinant for this difference may be the avoidance of old C losses in integrated systems or the higher rate of new C incorporation associated with higher C input rates. We analyzed the temporal
-
The influence of land use and management on the behaviour and persistence of soil organic carbon in a subtropical Ferralsol Soil (IF 5.8) Pub Date : 2024-07-04 Laura Hondroudakis, Peter M. Kopittke, Ram C. Dalal, Meghan Barnard, Zhe H. Weng
Abstract. A substantial carbon (C) debt has been accrued due to long-term cropping for global food production emitting carbon dioxide from soil. However, the factors regulating the persistence of soil organic C (SOC) remain unclear, with this hindering our ability to develop effective land management strategies to sequester organic C in soil. Using a Ferralsol from semi-arid subtropical Australia,
-
Electromagnetic and DC-current geophysics for soil compaction assessment Soil (IF 5.8) Pub Date : 2024-07-04 Alberto Carrera, Luca Peruzzo, Matteo Longo, Giorgio Cassiani, Francesco Morari
Abstract. Monitoring soil structure is of paramount importance due to its key role in the critical zone as the foundation of terrestrial life. Variations in the arrangement of soil components significantly influence its hydro-mechanical properties, and therefore its impact on the surrounding ecosystem. In this context, soil compaction resulting from inappropriate agricultural practices not only affects
-
Dissolved carbon flow to particulate organic carbon enhances soil carbon sequestration Soil (IF 5.8) Pub Date : 2024-07-02 Qintana Si, Kangli Chen, Bin Wei, Yaowen Zhang, Xun Sun, Junyi Liang
Abstract. Particulate organic carbon (POC) and mineral-associated organic carbon (MAOC), which are two primary components of the soil carbon (C) reservoir, have different physical and chemical properties as well as biochemical turnover rates. Microbial necromass entombment is a primary mechanism for MAOC formation from fast-decaying plant substrates, whereas POC is typically considered the product
-
Ectomycorrhizal fungal network complexity determines soil multi-enzymatic activity Soil (IF 5.8) Pub Date : 2024-06-21 Jorge Prieto-Rubio, José L. Garrido, Julio M. Alcántara, Concepción Azcón-Aguilar, Ana Rincón, Álvaro López-García
Abstract. Soil functioning is intrinsically related to the structure of associated biological communities. This link is barely understood in the multispecies context of soil microbial communities, which often requires complex analytical approaches to discern structural and functional roles of microbial taxa inhabiting the soil. To investigate these ecological properties, we characterized the assembly
-
Evaluating the Tea Bag Index approach for different management practices in agroecosystems using long-term field experiments in Austria and Sweden Soil (IF 5.8) Pub Date : 2024-06-12 Maria Regina Gmach, Martin Anders Bolinder, Lorenzo Menichetti, Thomas Kätterer, Heide Spiegel, Olle Åkesson, Jürgen Kurt Friedel, Andreas Surböck, Agnes Schweinzer, Taru Sandén
Abstract. Litter decomposition is an important factor affecting local and global C cycles. It is known that decomposition through soil microbial activity in ecosystems is mainly influenced by soil type and climatic conditions. However, for agroecosystems, there remains a need for a better understanding of how management practices influence litter decomposition. This study examined the effect of different
-
Soil respiration across a variety of tree-covered urban green spaces in Helsinki, Finland Soil (IF 5.8) Pub Date : 2024-06-12 Esko Karvinen, Leif Backman, Leena Järvi, Liisa Kulmala
Abstract. As an increasing share of the human population is being clustered in cities, urban areas have swiftly become the epicentres of anthropogenic carbon (C) emissions. Understanding different parts of the biogenic C cycle in urban ecosystems is needed in order to assess the potential to enhance their C stocks as a cost-efficient means to balance the C emissions and mitigate climate change. Here
-
Effect of colloidal particle size on physicochemical properties and aggregation behaviors of two alkaline soils Soil (IF 5.8) Pub Date : 2024-06-11 Yuyang Yan, Xinran Zhang, Chenyang Xu, Junjun Liu, Feinan Hu, Zengchao Geng
Abstract. Soil colloidal particles are the most active components of all, and they also vary in elemental composition and environmental behaviors with the particle size. The purposes of the present study are to clarify how particle size affects the physiochemical properties and aggregation kinetics of soil colloids, and to further reveal the underlying mechanisms. Soil colloidal particles from two
-
Estimations of soil metal accumulation or leaching potentials under climate change scenarios: the example of copper on a European scale Soil (IF 5.8) Pub Date : 2024-06-06 Laura Sereni, Julie-Maï Paris, Isabelle Lamy, Bertrand Guenet
Abstract. Contaminant inputs to soil are highly dependent on anthropogenic activities, while contaminant retention, mobility, and availability are highly dependent on soil properties. The knowledge of partitioning between soil solid and solution phases is necessary to estimate whether deposited amounts of contaminants will be either transported with runoff or accumulated. Besides, runoff is expected
-
The limited effect of deforestation on stabilized subsoil organic carbon in a subtropical catchment Soil (IF 5.8) Pub Date : 2024-06-04 Claude Raoul Müller, Johan Six, Liesa Brosens, Philipp Baumann, Jean Paolo Gomes Minella, Gerard Govers, Marijn Van de Broek
Abstract. Predicting the quantity of soil organic carbon (SOC) requires understanding how different factors control the amount of SOC. Land use has a major influence on the function of the soil as a carbon sink, as shown by substantial organic carbon (OC) losses from the soil upon deforestation. However, predicting the degree to which land use change affects the OC content in soils and the depth down
-
Optimized fertilization using online soil nitrate data Soil (IF 5.8) Pub Date : 2024-05-28 Yonatan Yekutiel, Yuval Rotem, Shlomi Arnon, Ofer Dahan
Abstract. A new soil nitrate monitoring system that was installed in a cultivated field enabled us, for the first time, to control the nitrate concentration across the soil profile. The monitoring system was installed in a full-scale agricultural greenhouse setup that was used for growing a bell pepper crop. Continuous measurements of soil nitrate concentrations were performed across the soil profile
-
Depth-dependence of soil organic carbon additional storage capacity in different soil types by the 2050 target for carbon neutrality Soil (IF 5.8) Pub Date : 2024-05-27 Clémentine Chirol, Geoffroy Séré, Paul-Olivier Redon, Claire Chenu, Delphine Derrien
Abstract. Land planning projects aiming to maximise soil organic carbon (SOC) stocks are increasing in number and scope. In response, a rising number of studies assess SOC additional storage capacities over regional to global spatial scales. In order to provide realistic values transferrable beyond the scientific community, SOC storage capacity assessments should consider the timescales over which
-
Large errors in common soil carbon measurements due to sample processing Soil (IF 5.8) Pub Date : 2024-05-24 Rebecca J. Even, Megan B. Machmuller, Jocelyn M. Lavallee, Jane T. Zelikova, M. Francesca Cotrufo
Abstract. To build confidence in the efficacy of soil carbon (C) crediting programs, precise quantification of soil organic carbon C (SOC) is critical. Detecting a true change in SOC after a management shift has occurred, specifically in agricultural lands, is difficult as it requires robust soil sampling and soil processing procedures. Informative and meaningful comparisons across spatial and temporal
-
Mixed signals: interpreting mixing patterns of different soil bioturbation processes through luminescence and numerical modelling Soil (IF 5.8) Pub Date : 2024-05-22 W. Marijn van der Meij, Svenja Riedesel, Tony Reimann
Abstract. Soil bioturbation plays a key role in soil functions such as carbon and nutrient cycling. Despite its importance, fundamental knowledge on how different organisms and processes impact the rates and patterns of soil mixing during bioturbation is lacking. However, this information is essential for understanding the effects of bioturbation in present-day soil functions and on long-term soil
-
The effect of soil moisture content and soil texture on fast in situ pH measurements with two types of robust ion-selective electrodes Soil (IF 5.8) Pub Date : 2024-05-17 Sebastian Vogel, Katja Emmerich, Ingmar Schröter, Eric Bönecke, Wolfgang Schwanghart, Jörg Rühlmann, Eckart Kramer, Robin Gebbers
Abstract. In situ soil pH measurements with ion-selective electrodes (ISEs) are receiving increasing attention in soil mapping for precision agriculture as they can avoid time-consuming sampling and off-site laboratory work. However, unlike the standard laboratory protocol, in situ pH measurements are carried out at lower and varying soil moisture contents (SMCs), which can have a pronounced effect
-
Soil contamination in arid environments and assessment of remediation applying surface evaporation capacitor model; a case study from the Judean Desert, Israel Soil (IF 5.8) Pub Date : 2024-05-06 Rotem Golan, Ittai Gavrieli, Roee Katzir, Galit Sharabi, Uri Nachshon
Abstract. Many of the globe arid areas are exposed to severe soil contamination events, due to the presence of highly pollutant industries in these regions. In this work a case study from the Ashalim basin, at the Judean desert, Israel was used to examine the nature of solutes and contaminants transport in sandy terraces of an ephemeral stream that was exposed to a severe pollution event. In order
-
Biochar reduces early-stage mineralization rates of plant residues more in coarse than fine-texture soils – an artificial soil approach Soil (IF 5.8) Pub Date : 2024-05-06 Thiago M. Inagaki, Simon Weldon, Franziska B. Bucka, Eva Farkas, Daniel P. Rasse
Abstract. Quantifying the impact of biochar on carbon persistence across soil textures is complex, owing to the variability in soil conditions. Using artificial soils with precise textural and mineral composition, we could disentangle the effects of biochar from the effects of soil particle size. We can show that biochar application significantly reduces early-stage carbon mineralization rates of plant
-
Shifts in controls and abundance of particulate and mineral-associated organic matter fractions among subfield yield stability zones Soil (IF 5.8) Pub Date : 2024-05-02 Sam J. Leuthold, Jocelyn M. Lavallee, Bruno Basso, William F. Brinton, M. Francesca Cotrufo
Abstract. Spatiotemporal yield heterogeneity presents a significant challenge to agricultural sustainability efforts and can strain the economic viability of farming operations. Increasing soil organic matter (SOM) has been associated with increased crop productivity, as well as the mitigation of yield variability across time and space. Observations at the regional scale have indicated decreases in
-
Carbon balance and emissions of methane and nitrous oxide during four years of moderate rewetting of a cultivated peat soil site Soil (IF 5.8) Pub Date : 2024-04-30 Kristiina Lång, Henri Honkanen, Jaakko Heikkinen, Sanna Saarnio, Tuula Larmola, Hanna Kekkonen
Abstract. We experimented a gradual water table rise at a highly degraded agricultural peat soil site with plots of willow, forage and mixed vegetation (set-aside) in southern Finland. We measured the emissions of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) for four years. The mean annual ground water table depth was about 80, 40, 40 and 30 cm in 2019–2022, respectively. The results
-
Gully rehabilitation in Southern Ethiopia – value and impacts for farmers Soil (IF 5.8) Pub Date : 2024-04-24 Wolde Mekuria, Euan Phimister, Getahun Yakob, Desalegn Tegegne, Awdenegest Moges, Yitna Tesfaye, Dagmawi Melaku, Charlene Gerber, Paul Hallett, Jo Smith
Abstract. Gully erosion can be combatted in severely affected regions like sub-Saharan Africa by a range of low-cost interventions that are accessible to affected farmers. However, for successful implementation, biophysical evidence of the effectiveness of interventions needs to be combined with buy-in and input from local communities. Working with farmers in a watershed in Southern Ethiopia, we investigated
-
A millennium of arable land use – the long-term impact of tillage and water erosion on landscape-scale carbon dynamics Soil (IF 5.8) Pub Date : 2024-04-18 Lena Katharina Öttl, Florian Wilken, Anna Juřicová, Pedro V. G. Batista, Peter Fiener
Abstract. In the last decades, soils and their agricultural management have received great scientific and political attention due to their potential to act as a sink of atmospheric carbon dioxide (CO2). Agricultural management has strong potential to accelerate soil redistribution, and, therefore, it is questioned if soil redistribution processes affect this potential CO2 sink function. Most studies
-
Complexity of nutrient enrichment on subarctic peatland soil CO2 and CH4 production under increasing wildfire and permafrost thaw Soil (IF 5.8) Pub Date : 2024-04-16 Eunji Byun, Fereidoun Rezanezhad, Stephanie Slowinski, Christina Lam, Saraswati Saraswati, Stephanie Wright, William L. Quinton, Kara L. Webster, Philippe Van Cappellen
Abstract. The adverse impacts of excessive soil nutrients on water quality and carbon sequestration have been recognized in tropical and temperate regions, with already widespread industrial farming and urbanization, but rarely in subarctic regions. However, recent studies have shown significant increases in porewater nitrogen (N) and phosphorus (P) concentrations in burned subarctic peatlands and
-
The six rights of how and when to test for soil C saturation Soil (IF 5.8) Pub Date : 2024-04-15 Johan Six, Sebastian Doetterl, Moritz Laub, Claude R. Müller, Marijn Van de Broek
Abstract. The concept of soil organic carbon (SOC) saturation emerged a bit more than 2 decades ago as our mechanistic understanding of SOC stabilization increased. Recently, the further testing of the concept across a wide range of soil types and environments has led some people to challenge the fundamentals of soil C saturation. Here, we argue that, to test this concept, one should pay attention
-
Unraveling biogeographical patterns and environmental drivers of soil fungal diversity at the French national scale Soil (IF 5.8) Pub Date : 2024-04-11 Christophe Djemiel, Samuel Dequiedt, Walid Horrigue, Arthur Bailly, Mélanie Lelièvre, Julie Tripied, Charles Guilland, Solène Perrin, Gwendoline Comment, Nicolas P. A. Saby, Claudy Jolivet, Antonio Bispo, Line Boulonne, Antoine Pierart, Patrick Wincker, Corinne Cruaud, Pierre-Alain Maron, Sébastien Terrat, Lionel Ranjard
Abstract. The fungal kingdom is among the most diversified kingdoms on Earth, with estimations of up to 12 million species. However, it remains poorly understood, with only 150 000 fungal species currently described. Given the major ecological role of fungi in ecosystem functioning, these numbers stress the importance of investigating fungal diversity description across different ecosystem types. Here
-
Measurement of greenhouse gas fluxes in agricultural soils with a flexible, open-design automated system Soil (IF 5.8) Pub Date : 2024-04-11 Samuel Franco-Luesma, María Alonso-Ayuso, Benjamin Wolf, Borja Latorre, Jorge Álvaro-Fuentes
Abstract. Over the last decades and due to the current climate change situation, the study of the impacts of human activities on climate has reached great importance, being agriculture one of the main sources of soil greenhouse gas. There are different techniques to quantify the soil gas fluxes, such as micrometeorological techniques or chamber techniques, being the last one capable to assess different
-
Best performances of visible–near-infrared models in soils with little carbonate – a field study in Switzerland Soil (IF 5.8) Pub Date : 2024-04-10 Simon Oberholzer, Laura Summerauer, Markus Steffens, Chinwe Ifejika Speranza
Abstract. Conventional laboratory analysis of soil properties is often expensive and requires much time if various soil properties are to be measured. Visual and near-infrared (vis–NIR) spectroscopy offers a complementary and cost-efficient way to gain a wide variety of soil information at high spatial and temporal resolutions. Yet, applying vis–NIR spectroscopy requires confidence in the prediction
-
Comprehensive increase in CO2 release by drying-rewetting cycles among Japanese forests and pastureland soils and exploring predictors of increasing magnitude Soil (IF 5.8) Pub Date : 2024-04-09 Yuri Suzuki, Syuntaro Hiradate, Jun Koarashi, Mariko Atarashi-Andoh, Takumi Yomogida, Yuki Kanda, Hirohiko Nagano
Abstract. It is still difficult to precisely quantify and predict the effects of drying-rewetting cycles (DWCs) on soil carbon dioxide (CO2) release due to the paucity of studies using constant moisture conditions equivalent to the mean water content during DWC incubation. The present study was performed to evaluate overall trends in the effects of DWCs on CO2 release and to explore environmental and
-
Spatial and temporal heterogeneity of soil respiration in a bare-soil Mediterranean olive grove Soil (IF 5.8) Pub Date : 2024-04-02 Sergio Aranda-Barranco, Penélope Serrano-Ortiz, Andrew S. Kowalski, Enrique P. Sánchez-Cañete
Abstract. Soil respiration (Rs) is an important carbon flux in terrestrial ecosystems and knowledge about this CO2 release process and the drivers involved is a key topic in the context of global change. However, temporal, and spatial variability has not been extensively studied in semiarid systems such as olive groves. In this study, we show a full year of continuous measurements of Rs with six automatic
-
Interactions of fertilisation and crop productivity on soil nitrogen cycle microbiome and gas emissions Soil (IF 5.8) Pub Date : 2024-03-26 Laura Kuusemets, Ülo Mander, Jordi Escuer-Gatius, Alar Astover, Karin Kauer, Kaido Soosaar, Mikk Espenberg
Abstract. Fertilised soils are a significant source of nitrous oxide (N2O), a highly active greenhouse gas and stratospheric ozone depleter. Nitrogen (N) fertilisers, while boosting crop yield, also lead to N2O into the atmosphere, impacting global warming. We investigated relationships between mineral N fertilisation rates and additional manure amendment with different crop types through the analysis
-
Modelling of post-monsoon drying in Nepal: implications for landslide hazard Soil (IF 5.8) Pub Date : 2024-03-25 Maximillian Van Wyk de Vries, Sihan Li, Katherine Arrell, Jeevan Baniya, Dipak Basnet, Gopi K. Basyal, Nyima Dorjee Bhotia, Alexander L. Densmore, Tek Bahadur Dong, Alexandre Dunant, Erin L. Harvey, Ganesh K. Jimee, Mark E. Kincey, Katie Oven, Sarmila Paudyal, Dammar Singh Pujara, Anuradha Puri, Ram Shrestha, Nick J. Rosser, Simon J. Dadson
Abstract. Soil moisture is a key preconditioning factor influencing hillslope stability and the initiation of landslides. Direct measurements of soil moisture on a large scale are logistically complicated, expensive, and therefore sparse, resulting in large data gaps. In this study, we calibrate a numerical land surface model to improve our representation of post-monsoon soil drying in landslide-prone
-
Impacts of soil storage on microbial parameters Soil (IF 5.8) Pub Date : 2024-03-11 Nathalie Fromin
Abstract. This review aims to determine the impact of soil storage on microbial parameters (abundance/biomass, activity and various diversity metrics). We analysed the literature dealing with the impact of storage practices (cold, freeze, dry, freeze-dry and ambient storage) on soil microbial parameters. A total of 73 articles were included in the analysis, representing 261 basic data (impact of a
-
Model-based analysis of erosion-induced microplastic delivery from arable land to the stream network of a mesoscale catchment Soil (IF 5.8) Pub Date : 2024-03-12 Raphael Rehm, Peter Fiener
Abstract. Soils are generally accepted as sinks for microplastics (MPs) but at the same time might be an MP source for inland waters. However, little is known regarding the potential MP delivery from soils to aquatic systems via surface runoff and erosion. This study provides, for the first time, an estimate of the extent of soil-erosion-induced MP delivery from an arable-dominated mesoscale catchment
-
Impact of Cropping Systems on Macronutrient Distribution and Microbial Biomass in Drought Affected Soils Soil (IF 5.8) Pub Date : 2024-03-12 M. Naga Jayasudha, M. Kiranmai Reddy, Surendra Singh Bargali
Abstract. The interplay between soil nutrients, water activity, and microbial biomass is pivotal for plant growth as well as for soil health. While surface microflora typically promotes mineralization and nutrient deposits, the impact of drought on soil microbial biomass and nutrient utilization remains underexplored. In this study, we assessed various land types—open lands (OL), annual crops with
-
Soil organic matter interactions along the elevation gradient of the James Ross Island (Antarctica) Soil (IF 5.8) Pub Date : 2024-03-12 Vitezslav Vlcek, David Juřička, Martin Valtera, Helena Dvořáčková, Vojtěch Štulc, Michaela Bednaříková, Jana Šimečková, Peter Váczi, Miroslav Pohanka, Pavel Kapler, Miloš Barták, Vojtěch Enev
Abstract. Around half of the Earth’s soil organic carbon (SOC) is presently stored in the Northern permafrost region. In polar permafrost regions, low temperatures particularly inhibit both the production and biodegradation of organic matter. In such conditions, abiotic factors such as mesoclimate, pedogenic substrate or altitude are thought to be more important for soil development than biological
-
The impact of agriculture on tropical mountain soils in the western Peruvian Andes: a pedo-geoarchaeological study of terrace agricultural systems in the Laramate region (14.5° S) Soil (IF 5.8) Pub Date : 2024-03-12 Fernando Leceta, Christoph Binder, Christian Mader, Bertil Mächtle, Erik Marsh, Laura Dietrich, Markus Reindel, Bernhard Eitel, Julia Meister
Abstract. This integrated pedo-geoarchaeological study focuses on three abandoned prehispanic terrace agricultural systems near Laramate in the southern Andes of Peru, aiming to unravel the pedological and land-use history of the region. The investigation involved contextualizing the former agricultural management system within its paleoecological framework and assessing the impact of agricultural
-
Diachronic assessment of soil organic C and N dynamics under long-term no-till cropping systems in the tropical upland of Cambodia Soil (IF 5.8) Pub Date : 2024-03-07 Vira Leng, Rémi Cardinael, Florent Tivet, Vang Seng, Phearum Mark, Pascal Lienhard, Titouan Filloux, Johan Six, Lyda Hok, Stéphane Boulakia, Clever Briedis, João Carlos de Moraes Sá, Laurent Thuriès
Abstract. No-till (NT) cropping systems have been proposed as a potential strategy to combat soil degradation and global warming by storing soil organic carbon (SOC) and nitrogen (N). Yet, there are ongoing debates about the real benefits of NT systems and factors influencing SOC and N accumulation. Assessing the dynamics of SOC and N on the long-term is needed to fill knowledge gaps and provide robust
-
Reference soil groups map of Ethiopia based on legacy data and machine learning-technique: EthioSoilGrids 1.0 Soil (IF 5.8) Pub Date : 2024-03-05 Ashenafi Ali, Teklu Erkossa, Kiflu Gudeta, Wuletawu Abera, Ephrem Mesfin, Terefe Mekete, Mitiku Haile, Wondwosen Haile, Assefa Abegaz, Demeke Tafesse, Gebeyhu Belay, Mekonen Getahun, Sheleme Beyene, Mohamed Assen, Alemayehu Regassa, Yihenew G. Selassie, Solomon Tadesse, Dawit Abebe, Yitbarek Wolde, Nesru Hussien, Abebe Yirdaw, Addisu Mera, Tesema Admas, Feyera Wakoya, Awgachew Legesse, Nigat Tessema
Abstract. Up-to-date digital soil resource information and its comprehensive understanding are crucial to supporting crop production and sustainable agricultural development. Generating such information through conventional approaches consumes time and resources, and is difficult for developing countries. In Ethiopia, the soil resource map that was in use is qualitative, dated (since 1984), and small
-
The effect of groundwater depth on topsoil organic matter mineralization during a simulated dry summer in North-West Europe Soil (IF 5.8) Pub Date : 2024-03-04 Astrid Françoys, Orly Mendoza, Junwei Hu, Pascal Boeckx, Wim Cornelis, Stefaan De Neve, Steven Sleutel
Abstract. With climate change expected to intensify the occurrence and severity of droughts, the control of groundwater table (GWT) depth and capillary rise on topsoil moisture may render a critical driver of biological activity. Consequently, GWT depth could influence topsoil carbon mineralization. In this study, undisturbed 200 cm long soil columns of three different textures (loamy sand, sandy loam
-
Mineral dust and pedogenesis in the alpine critical zone Soil (IF 5.8) Pub Date : 2024-02-22 Jeffrey S. Munroe, Abigail A. Santis, Elsa J. Soderstrom, Michael J. Tappa, Ann M. Bauer
Abstract. The influence of mineral dust deposition on soil formation in the mountain critical zone was evaluated at six sites in southwestern North America. Passive samplers collected dust for 2 years, and representative soil and rock were gathered in the vicinity of each dust sampler. All materials (dust, soil, and rock) were analyzed to determine their mineralogy (with X-ray diffraction), geochemistry
-
Insights into the prediction uncertainty of machine-learning-based digital soil mapping through a local attribution approach Soil (IF 5.8) Pub Date : 2024-02-21 Jeremy Rohmer, Stephane Belbeze, Dominique Guyonnet
Abstract. Machine learning (ML) models have become key ingredients for digital soil mapping. To improve the interpretability of their prediction, diagnostic tools have been developed like the widely used local attribution approach known as ‘SHAP’ (SHapley Additive exPlanation). However, the analysis of the prediction is only one part of the problem and there is an interest in getting deeper insights
-
Mulch application as the overarching factor explaining increase in soil organic carbon stocks under conservation agriculture in two 8-year-old experiments in Zimbabwe Soil (IF 5.8) Pub Date : 2024-02-20 Armwell Shumba, Regis Chikowo, Christian Thierfelder, Marc Corbeels, Johan Six, Rémi Cardinael
Abstract. Conservation agriculture (CA), combining reduced or no tillage, permanent soil cover, and improved rotations, is often promoted as a climate-smart practice. However, our understanding of the impact of CA and its respective three principles on top- and subsoil organic carbon stocks in the low-input cropping systems of sub-Saharan Africa is rather limited. This study was conducted at two long-term
-
Cover crops improve soil structure and change organic carbon distribution in macroaggregate fractions Soil (IF 5.8) Pub Date : 2024-02-15 Norman Gentsch, Florin Laura Riechers, Jens Boy, Dörte Schweneker, Ulf Feuerstein, Diana Heuermann, Georg Guggenberger
Abstract. Soil structure is sensitive to intensive soil management. It can be ameliorated by a reduction in soil cultivation and stimulation of plant and microbial mediators for aggregate formation, with the latter being a prerequisite and measure for soil quality. Cover crops (CCs) are part of an integrated approach to stabilize or improve soil quality. Thereby, the incorporation of diverse CC mixtures
-
Trapnell's Upper Valley Soils of Zambia: the production of an integrated understanding of geomorphology, pedology, ecology and land use Soil (IF 5.8) Pub Date : 2024-02-12 Nalumino L. Namwanyi, Maurice J. Hutton, Ikabongo Mukumbuta, Lydia M. Chabala, Clarence Chongo, Stalin Sichinga, R. Murray Lark
Abstract. The Ecological Survey of Northern Rhodesia, undertaken in the 1930s under the leadership of Colin Trapnell, was a seminal exercise to relate soil, vegetation and agricultural practices through intensive field observation. In this article we examine early activities of the survey in the Upper Valley region around the Kafue Flats and the neighbouring plateau where Trapnell recognized how geomorphological
-
Sensitivity of source sediment fingerprinting to tracer selection methods Soil (IF 5.8) Pub Date : 2024-02-13 Thomas Chalaux-Clergue, Rémi Bizeul, Pedro V. G. Batista, Núria Martínez-Carreras, J. Patrick Laceby, Olivier Evrard
Abstract. In a context of accelerated soil erosion and sediment supply to water bodies, sediment fingerprinting techniques have received an increasing interest in the last 2 decades. The selection of tracers is a particularly critical step for the subsequent accurate prediction of sediment source contributions. To select tracers, the most conventional approach is the three-step method, although, more
-
Soil carbon, nitrogen, and phosphorus storage in juniper–oak savanna: role of vegetation and geology Soil (IF 5.8) Pub Date : 2024-02-06 Che-Jen Hsiao, Pedro A. M. Leite, Ayumi Hyodo, Thomas W. Boutton
Abstract. Woody-plant encroachment into grasslands and savannas has been globally widespread during the past century, likely driven by interactions between grazing, fire suppression, rising atmospheric CO2, and climate change. In the southernmost US Great Plains, Ashe juniper and live oak have increased in abundance. To evaluate potential interactions between this vegetation change and the underlying
-
Organic matters, but inorganic matters too: column examination of elevated mercury sorption on low organic matter aquifer material using concentrations and stable isotope ratios Soil (IF 5.8) Pub Date : 2024-02-01 David S. McLagan, Carina Esser, Lorenz Schwab, Jan G. Wiederhold, Jan-Helge Richard, Harald Biester
Abstract. Sorption of mercury (Hg) in soils is suggested to be predominantly associated with organic matter (OM). However, there is a growing collection of research that suggests that clay minerals and Fe/Mn oxides are also important solid phases for the sorption of soluble Hg in soil–groundwater systems. We use a series of (60 mL syringe based) column experiments to examine sorption and subsequent
-
Investigating the complementarity of thermal and physical soil organic carbon fractions Soil (IF 5.8) Pub Date : 2024-02-02 Amicie A. Delahaie, Lauric Cécillon, Marija Stojanova, Samuel Abiven, Pierre Arbelet, Dominique Arrouays, François Baudin, Antonio Bispo, Line Boulonne, Claire Chenu, Jussi Heinonsalo, Claudy Jolivet, Kristiina Karhu, Manuel P. Martin, Lorenza Pacini, Christopher Poeplau, Céline Ratié, Pierre Roudier, Nicolas P. A. Saby, Florence Savignac, Pierre Barré
Abstract. Partitioning soil organic carbon (SOC) in fractions with different biogeochemical stability is useful to better understand and predict SOC dynamics, and provide information related to soil health. Multiple SOC partition schemes exist but few of them can be implemented on large sample sets and therefore be considered as relevant options for soil monitoring. The well-established particulate-
-
Ectomycorrhizal fungal network complexity determines soil multi-enzymatic activity Soil (IF 5.8) Pub Date : 2024-02-02 Jorge Prieto-Rubio, José Luis Garrido, Julio M. Alcántara, Concepción Azcón-Aguilar, Ana Rincón, Álvaro López-García
Abstract. Soil functioning is intrinsically related to the structure of associated biological communities. This link is barely understood under the multi-species context of soil microbial communities, which often requires complex analytical approaches to discern into structural and functional roles of microbial taxa inhabiting the soil. To investigate these ecological properties, we characterized the
-
Soil organic carbon mineralization is controlled by the application dose of exogenous organic matter Soil (IF 5.8) Pub Date : 2024-01-30 Orly Mendoza, Stefaan De Neve, Heleen Deroo, Haichao Li, Astrid Françoys, Steven Sleutel
Abstract. Substantial input of exogenous organic matter (EOM) may be required to offset the projected decline in soil organic carbon (SOC) stocks in croplands caused by global warming. However, information on the effectivity of EOM application dose in preserving SOC stocks is surprisingly limited. Therefore, we set up a 90-day incubation experiment with large soil volumes (sandy loam and silt loam)
-
Depth-extrapolation of field-scale soil moisture time series derived with cosmic-ray neutron sensing using the SMAR model Soil (IF 5.8) Pub Date : 2024-01-29 Daniel Rasche, Theresa Blume, Andreas Güntner
Abstract. Soil moisture measurements at the field scale are highly beneficial for different hydrological applications including the validation of space-borne soil moisture products, landscape water budgeting or multi-criteria calibration of rainfall-runoff models from field to catchment scale. Many of these applications require information on soil water dynamics in deeper soil layers. Cosmic-ray neutron
-
An ensemble estimate of Australian soil organic carbon using machine learning and process-based modelling Soil (IF 5.8) Pub Date : 2024-01-22 Lingfei Wang, Gab Abramowitz, Ying-Ping Wang, Andy Pitman, Raphael Viscarra Rossel
Abstract. Spatially explicit prediction of soil organic carbon (SOC) serves as a crucial foundation for effective land management strategies aimed at mitigating soil degradation and assessing carbon sequestration potential. Here, using more than 1000 in-situ observations, we trained two machine learning models (random forest, and K-means coupled with multiple linear regression), and one process-based
-
Response of soil nutrients and erodibility to slope aspect in the northern agro-pastoral ecotone, China Soil (IF 5.8) Pub Date : 2024-01-17 Yuxin Wu, Guodong Jia, Xinxiao Yu, Honghong Rao, Xiuwen Peng, Yusong Wang, Yushi Wang, Xu Wang
Abstract. Soil erosion, considered a major environmental and social problem, leads to the loss of soil nutrients and the degradation of soil structure and impacts plant growth. However, data on the effects of land use changes caused by vegetation restoration on soil nutrients and erodibility for different slope aspects are limited. This study was conducted to detect the response of soil nutrients and
-
Intensive agricultural management-induced subsurface accumulation of water-extractable colloidal P in a Vertisol Soil (IF 5.8) Pub Date : 2024-01-16 Shouhao Li, Shuiqing Chen, Shanshan Bai, Jinfang Tan, Xiaoqian Jiang
Abstract. Long-term excessive application of mineral fertilizer leads to phosphorus (P) accumulation, increasing the risk of P migration and loss from the soil profile. The colloids in the soil profile are important carriers for P migration due to their high P adsorption and transport capacity. It is not clearly understood how colloidal P (CP) is distributed in subsoils (<1.2 m) of a Vertisol, contributing