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Comparing laser-induced breakdown spectroscopy and visible near-infrared spectroscopy for predicting soil properties: A pan-European study Geoderma (IF 6.1) Pub Date : 2024-03-29 Alex Wangeci, Daniel Adén, Thomas Nikolajsen, Mogens H. Greve, Maria Knadel
Soil organic carbon (SOC), texture, clay/organic carbon (OC) ratio, and extractable phosphorus are among the key soil descriptors representing the physical, chemical, and biological properties. However, analyzing these soil properties using conventional methods of analysis is time-consuming and often involves the use of hazardous chemicals. Therefore, scaling these methods to analyze more samples covering
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Soil organic carbon mapping utilizing convolutional neural networks and Earth observation data, a case study in Bavaria state Germany Geoderma (IF 6.1) Pub Date : 2024-03-28 Nikolaos Tziolas, Nikolaos Tsakiridis, Uta Heiden, Bas van Wesemael
The Copernicus Sentinel-2 multispectral imagery data may be aggregated to extract large-scale, bare soil, reflectance composites, which enable soil mapping applications. In this paper, this approach was tested in the German federal state of Bavaria, to provide estimations for soil organic carbon (SOC). Different temporal ranges were considered for the generation of the composites, including multi-annual
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Response time of soil moisture to rain in a vineyard with permanent cover Geoderma (IF 6.1) Pub Date : 2024-03-28 Rosane da Silva-Dias, Xiana Raposo-Díaz, Aitor García-Tomillo, Manuel López-Vicente
The time elapsed between the moments of maximum rainfall intensity and maximum soil moisture, known as peak to peak (P2P), is part of the hydrological response of the soil, but literature has missed this metric in any woody crop. In a vineyard with permanent vegetation cover (humid climatic conditions), the influence of two cultivars (Agudelo and Blanco Legítimo) and two zones (rows and inter-row areas)
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Nitrogen enrichment does not adversely affect exchangeable bases in rainfed urban arable soils of Kumasi, a tropical West African city Geoderma (IF 6.1) Pub Date : 2024-03-28 Stephen Boahen Asabere, Kwabena Abrefa Nketia, Najeeb A. Iddris, George Ashiagbor, Daniela Sauer
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Accuracy and sensitivity of soil erosion estimation using 137Cs technology: A statistical perspective Geoderma (IF 6.1) Pub Date : 2024-03-27 X.C. John Zhang, P.R. Busteed
Random spatial variation of the Cs inventory is the principal contributor to uncertainty in soil erosion estimation using Cs technology. A statistically sound sampling design is imperative for obtaining reliable soil erosion estimations. The objectives of this study are to: 1) characterize the effect of sample size on the estimates of mean inventories; 2) evaluate the sensitivity of the estimated soil
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Is the organic carbon-to-clay ratio a reliable indicator of soil health? Geoderma (IF 6.1) Pub Date : 2024-03-27 Raisa Mäkipää, Lorenzo Menichetti, Eduardo Martínez-García, Tiina Törmänen, Aleksi Lehtonen
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Fire simulation effects on the transformation of iron minerals in alpine soils Geoderma (IF 6.1) Pub Date : 2024-03-21 Sara Negri, Beatrice Giannetta, Jessica Till, Danilo Oliveira de Souza, Daniel Said-Pullicino, Eleonora Bonifacio
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Using local ensemble models and Landsat bare soil composites for large-scale soil organic carbon maps in cropland Geoderma (IF 6.1) Pub Date : 2024-03-19 Tom Broeg, Axel Don, Alexander Gocht, Thomas Scholten, Ruhollah Taghizadeh-Mehrjardi, Stefan Erasmi
National soil organic carbon (SOC) maps are essential to improve greenhouse gas accounting and support climate-smart agriculture. Large-scale SOC models based on wall-to-wall soil information from remote sensing remain a challenge due to the high diversity of natural soil conditions and the difficulty of accounting for the spatial location of the soil samples. In this study, we tested if the implementation
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Soil organic carbon increase via microbial assimilation or soil protection against the priming effect is mediated by the availability of soil N relative to input C Geoderma (IF 6.1) Pub Date : 2024-03-18 Futao Zhang, Qianqian Wang, Yueling Zhang, Shuihong Yao, Qinhua Wang, Georges Ndzana, Ute Hamer, Yakov Kuzyakov, Bin Zhang
Labile C inputs into soils will be partially transformed into soil organic carbon (SOC) through microbial assimilation or physicochemical protection as such mineral-organic interactions and soil aggregation. The C inputs may stimulate the decomposition of native SOC, inducing a phenomenon known as the priming effect. Increasing C inputs may increase SOC content, yet the relative role of these mechanisms
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Geochemical evidence for changes in provenance and paleoclimate during the Holocene obtained from a fluvial–eolian sequence in the southern Mu Us Desert, north-central China Geoderma (IF 6.1) Pub Date : 2024-03-16 Zhiyong Ding, Ruijie Lu, Xuanmei Fan, Xiaokang Liu, Jia Pu, Yaping Shen, Jianpeng Zhang
Identifying the sources and weathering degree of sediments in the northern deserts of China is crucial to understand the evolution of the Asian monsoon system and corresponding induced changes in surface processes. Great progress has been made in the reconstruction of paleoclimate and paleoenvironment from the Early Holocene onwards based on chronostratigraphy and proxies of aeolian sedimentary sequences
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Age and origin of closed depressions in the Paris Basin: A majority of marl pits dug since the Neolithic period? Geoderma (IF 6.1) Pub Date : 2024-03-16 Boris Brasseur, Théo Allalou, Laurent Chalumeau, Emilie Gallet-Moron, Jérôme Buridant
Marling (limestone alkaline amendment) agrarian practices have a plurimillennial influence on soil pH and on soil-associated ecosystems. Although the earliest written records in Europe date back to antiquity, the origin of this agrarian practice is not well known. In order to trace the evolution of this practice in the early agrarian societies of Western Europe, we searched for topographic anomalies
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Time to anoxia: Observations and predictions of oxygen drawdown following coastal flood events Geoderma (IF 6.1) Pub Date : 2024-03-15 Kaizad F. Patel, Kenton A. Rod, Jianqiu Zheng, Peter Regier, Fausto Machado-Silva, Ben Bond-Lamberty, Xingyuan Chen, Donnie J. Day, Kennedy O. Doro, Matthew H. Kaufman, Matthew Kovach, Nate McDowell, Sophia A. McKever, J. Patrick Megonigal, Cooper G. Norris, Teri O'Meara, Roberta B. Peixoto, Roy Rich, Peter Thornton, Kenneth M. Kemner, Nick D. Ward, Michael N. Weintraub, Vanessa L. Bailey
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Potential of solar-induced chlorophyll fluorescence (SIF) to access long-term dynamics of soil salinity using OCO-2 satellite data and machine learning method Geoderma (IF 6.1) Pub Date : 2024-03-14 Ruiqi Du, Youzhen Xiang, Junying Chen, Xianghui Lu, Yuxiao Wu, Yujie He, Ru Xiang, Zhitao Zhang, Yinwen Chen
The accumulation of soil salt becomes a worldwide widespread phenomenon, being a major threat to global production. As an environmental stress, soil salinity can reduce the vegetation photosynthetic activity. Solar-induced chlorophyll fluorescence (SIF) is an electromagnetic signal actively released by vegetation during photosynthesis. SIF not only can capture lower vegetation photosynthetic activity
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High-resolution digital mapping of soil erodibility in China Geoderma (IF 6.1) Pub Date : 2024-03-12 Longhui Sun, Feng Liu, Xuchao Zhu, Ganlin Zhang
Soil erodibility (K) is the intrinsic susceptibility of a soil to water erosion. Currently, its detailed and accurate spatial distribution information especially over large areas is urgently required for national and regional soil erosion assessment and soil conservation decision making. This study combined pedotransfer function with digital soil mapping techniques to develop a high-resolution map
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Microbial survival strategies in biological soil crusts of polymetallic tailing wetlands Geoderma (IF 6.1) Pub Date : 2024-03-11 Zekai Feng, Guobao Wang, Yuanyuan Jiang, Chiyu Chen, Daijie Chen, Mengyao Li, Jean Louis Morel, Hang Yu, Yuanqing Chao, Yetao Tang, Rongliang Qiu, Shizhong Wang
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Microbial-explicit processes and refined perennial plant traits improve modeled ecosystem carbon dynamics Geoderma (IF 6.1) Pub Date : 2024-03-11 Danielle M Berardi, Melannie D. Hartman, Edward R Brzostek, Carl J. Bernacchi, Evan H. DeLucia, Adam C. von Haden, Ilsa Kantola, Caitlin E. Moore, Wendy H. Yang, Tara W. Hudiburg, William J. Parton
Globally, soils hold approximately half of ecosystem carbon and can serve as a source or sink depending on climate, vegetation, management, and disturbance regimes. Understanding how soil carbon dynamics are influenced by these factors is essential to evaluate proposed natural climate solutions and policy regarding net ecosystem carbon balance. Soil microbes play a key role in both carbon fluxes and
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Quantification of microbially induced soil N2O emissions by an inhibitory cocktail in mountain forest ecosystems Geoderma (IF 6.1) Pub Date : 2024-03-08 Wenjun Xiong, Jiabao Li, Jingwei Liu, Chaonan Li, Zhili He, Xiangzhen Li
Simultaneously quantifying soil NO emissions contributed by different microbial groups and revealing the underlying mechanisms have long been challenging but fundamental to understanding terrestrial nitrogen cycling. Here, a novel inhibitory approach based on the use octyne, acetylene, antibiotics and different combinations was developed to explore different microbially sourced NO emissions in mountain
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Energy stored in soil organic matter is influenced by litter quality and the degree of transformation – A combustion calorimetry study Geoderma (IF 6.1) Pub Date : 2024-03-07 Marcel Lorenz, Thomas Maskow, Sören Thiele-Bruhn
The turnover and stabilization of organic matter (OM) in soils depend on mass and energy fluxes. Understanding the energy content of soil organic matter (SOM) is therefore of crucial importance, but this has hardly been studied so far, especially in mineral soils. In this study, combustion calorimetry (bomb calorimetry) was applied to determine the energy content (combustion enthalpy, Δ) of various
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Biochar addition reduces salinity in salt-affected soils with no impact on soil pH: A meta-analysis Geoderma (IF 6.1) Pub Date : 2024-03-07 Xiao Wang, Jianli Ding, Lijing Han, Jiao Tan, Xiangyu Ge, Qiong Nan
Salinization remains a major issue in soil degradation, for which biochar is a potential solution. In this -analysis, using 660 paired observations from 99 peer-reviewed articles, we evaluated biochar's effect on salt-affected soils and identified the initial soil properties, biochar properties and experimental factors influencing its efficacy. The results showed that the addition of biochar had a
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Burrowing-mammal-induced enhanced soil multifunctionality is associated with higher microbial network complexity in alpine meadows Geoderma (IF 6.1) Pub Date : 2024-03-06 Wancai Wang, Lu Zhang, Lirong Liao, Wende Yan, Taimoor Hassan Farooq, Xiangtao Wang
The Plateau pika, a native burrowing mammal in alpine ecosystems, induces significant alterations in both the diversity and functions of the above-ground plant community; however, their effects on the below-ground soil microbial community and its multifunctionality remain unclear. Here, we examined the impact of plateau pika disturbance on soil microbial diversity, composition, and network patterns
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Afforestation increases soil inorganic N supply capacity and lowers plant N limitation in subtropical karst areas Geoderma (IF 6.1) Pub Date : 2024-03-05 Lijun Liu, Qilin Zhu, Lin Yang, Ahmed S. Elrys, Jianfei Sun, Kang Ni, Lei Meng, Tongbin Zhu, Christoph Müller
The positive effects of afforestation in karst rocky desertification areas are often limited by soil nitrogen (N) availability. However, how plant N limitation evolves in response to prolonged afforestation as well as the mechanisms underlying plant N limitation and soil N availability are poorly understood. In this study, plant leaves and soil samples were collected from cropland, plantations 10,
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Assessment of soil health and identification of key soil health indicators for five long-term crop rotations with varying fertility management Geoderma (IF 6.1) Pub Date : 2024-03-04 Jingyu Zhang, Miles Dyck, Sylvie A Quideau, Charlotte E Norris
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Effects of plant root exudates at different successional stages on the seed germination and seedling growth of subalpine dominant tree species Geoderma (IF 6.1) Pub Date : 2024-03-03 Jia Liu, Ruixue Xia, Wenqiang Zhao, Kai Fang, Yongping Kou, Qing Liu
Root exudates play an important role in belowground ecological processes, by which plants can regulate the soil ecosystem. However, studies on the effects of root exudates on aboveground plant emergence and growth and thus vegetation regeneration are still lacking, particularly in subalpine forests. In this study, we collected the root exudates of dominant plants at different successional stages (early-stage
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Regional emissions of soil greenhouse gases across Tibetan alpine grasslands Geoderma (IF 6.1) Pub Date : 2024-03-02 Peiyan Wang, Jinsong Wang, Bo Elberling, Per Ambus, Yang Li, Junxiao Pan, Ruiyang Zhang, Hui Guo, Shuli Niu
Soil greenhouse gas (GHG) emissions play an important role in regional climate feedback on the Qinghai-Tibetan Plateau (QTP). Previous studies have focused on soil GHGs based on observations within a limited space on the QTP, however, the regional GHG emissions remain unclear. Analyzing soil samples from 25 sites along a 2,700 km transect across QTP, we showed significantly higher soil CO and NO emission
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The apparent temperature sensitivity (Q10) of peat soil respiration: A synthesis study Geoderma (IF 6.1) Pub Date : 2024-03-02 Haojie Liu, Fereidoun Rezanezhad, Ying Zhao, Hongxing He, Philippe Van Cappellen, Bernd Lennartz
The temperature sensitivity (Q) of soil respiration is a critical parameter in modeling soil carbon dynamics; yet the regulating factors and the underlying mechanisms of Q in peat soils remain unclear. To address this gap, we conducted a comprehensive synthesis data analysis from 87 peatland sites (350 observations) spanning boreal, temperate, and tropical zones, and investigated the spatial distribution
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High-resolution digital soil mapping of amorphous iron- and aluminium-(hydr)oxides to guide sustainable phosphorus and carbon management Geoderma (IF 6.1) Pub Date : 2024-03-02 Maarten van Doorn, Anatol Helfenstein, Gerard H. Ros, Gerard B.M. Heuvelink, Debby A.M.D. van Rotterdam-Los, Sven E. Verweij, Wim de Vries
Amorphous iron- and aluminium-(hydr)oxides are key soil properties in controlling the dynamics of phosphorus availability and carbon storage. These oxides affect the potential of soils to retain phosphorus and carbon, thus affecting ecosystem services such as crop production, water quality and carbon sequestration. In this study, we spatially predicted oxalate-extractable Fe and Al (Fe, Al) contents
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Soil water repellency along elevation gradients: The role of climate, land use and soil chemistry Geoderma (IF 6.1) Pub Date : 2024-03-02 Giuliano Bonanomi, Riccardo Motti, Ahmed M. Abd-ElGawad, Mohamed Idbella
The rate of water infiltration, surface runoff, and overland flow are all affected by soil water repellency (SWR), i.e., the reduced affinity for water caused by hydrophobic coatings on soil particles. SWR impacts water balance, which in turn affects ecosystem’s function and watersheds hydrology, but little is known about changes of these properties along elevation gradient. Here, we investigate variation
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Response of soil erosion to vegetation and terrace changes in a small watershed on the Loess Plateau over the past 85 years Geoderma (IF 6.1) Pub Date : 2024-03-02 Tianle Ma, Baoyuan Liu, Liang He, Lixia Dong, Bing Yin, Yunge Zhao
Land use on the Chinese Loess Plateau has undergone dramatic changes over the past few decades. The implementation of a series of soil and water conservation measures has significantly altered the soil erosion, transportation, and deposition processes on the Loess Plateau. To effectively address and mitigate soil erosion, it is crucial to accurately quantify the soil loss rate and analyze the contributions
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Estimation of soil organic matter content based on spectral indices constructed by improved Hapke model Geoderma (IF 6.1) Pub Date : 2024-03-02 Jing Yuan, Jichao Gao, Bo Yu, Changxiang Yan, Chaoran Ma, Jiawei Xu, Yuteng Liu
Soil organic matter (SOM) content is an important indicator to measure the degradation degree and fertility of soil. However, most current SOM prediction methods are based on statistical learning theory, overlooking the transmission process and physical mechanism of reflectance spectra, and lacking the physical basis of soil remote sensing. In this study, a method for estimating SOM content based on
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Labile carbon inputs offset nitrogen-induced soil aggregate destabilization via enhanced growth of saprophytic fungi in a meadow steppe Geoderma (IF 6.1) Pub Date : 2024-03-01 Ruonan Zhao, Yakov Kuzyakov, Haiyang Zhang, Zhirui Wang, Tianpeng Li, Lingyu Shao, Liangchao Jiang, Ruzhen Wang, Maihe Li, Osbert Jianxin Sun, Yong Jiang, Xingguo Han
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Acceleration of straw-nitrogen mineralization under co-elevation of CO2 and temperature is associated with microbial attributes in the rhizosphere of rice Geoderma (IF 6.1) Pub Date : 2024-03-01 Jinyuan Zhang, Zhenhua Yu, Yansheng Li, Xinqi Sima, Guanghua Wang, Xiaobing Liu, Caixian Tang, Junjie Liu, Judong Liu, Xiaojing Hu, Stephen J. Herbert, Jian Jin
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Organic carbon loading of soils determines the fate of added fresh plant-derived organic matter Geoderma (IF 6.1) Pub Date : 2024-03-01 Tianyi Wu, Florian Wichern, Martin Wiesmeier, Franz Buegger, Lingling Shi, Michaela A. Dippold, Carmen Höschen, Carsten W. Mueller
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Changes in molecular composition, diversity, and network complexity of soil organic carbon along the elevation in Changbai Mountain, Northeast China Geoderma (IF 6.1) Pub Date : 2024-03-01 Zhongsheng Zhang, Haobo Wu, Wenwen Zhao, Shan Jiang, Lei Xu, Qiang Guan, Haitao Wu
Mountain ecosystems exhibit rapid changes in vegetation cover and climate conditions along elevation gradients, offering an ideal natural experiment to examine variations in the molecular composition of soil organic carbon (SOC) responsing to environmental change. We examined molecular composition, diversity, and network complexity of SOC using the pyrolysis-gas chromatography/mass spectrometry technology
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Determination of plantation degradation promotes shallow soil water recovery in semi-arid area based on high-density plots investigation Geoderma (IF 6.1) Pub Date : 2024-02-29 Xiaoyu Liang, Zhongbao Xin, Shanbao Liu, Hanyue Shen, Zhiqiang Zhang
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Inorganic carbon is overlooked in global soil carbon research: A bibliometric analysis Geoderma (IF 6.1) Pub Date : 2024-02-29 Sajjad Raza, Annie Irshad, Andrew Margenot, Kazem Zamanian, Nan Li, Sami Ullah, Khalid Mehmood, Muhammad Ajmal Khan, Nadeem Siddique, Jianbin Zhou, Sacha J. Mooney, Irina Kurganova, Xiaoning Zhao, Yakov Kuzyakov
Soils are a major player in the global carbon (C) cycle and climate change by functioning as a sink or a source of atmospheric carbon dioxide (CO). The largest terrestrial C reservoir in soils comprises two main pools: organic (SOC) and inorganic C (SIC), each having distinct fates and functions but with a large disparity in global research attention. This study quantified global soil C research trends
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Chronic drought decreased organic carbon content in topsoil greater than intense drought across grasslands in Northern China Geoderma (IF 6.1) Pub Date : 2024-02-27 Md. Shahariar Jaman, Qiang Yu, Chong Xu, Mahbuba Jamil, Yuguang Ke, Tian Yang, Alan K. Knapp, Kate Wilkins, Scott L. Collins, Robert J. Griffin-Nolan, Yiqi Luo, Wentao Luo, Honghui Wu
Grasslands are expected to experience extreme climatic events such as extreme drought due to rising global temperatures. However, we still lack evidence of how extreme drought influence soil organic carbon (SOC) content in grassland ecosystems. We experimentally imposed extreme drought in two ways – chronic drought (66 % reduction in precipitation from May to August) and intense drought (100 % reduction
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Decoding the rhizodeposit-derived carbon’s journey into soil organic matter Geoderma (IF 6.1) Pub Date : 2024-02-26 Pedro P.C. Teixeira, Alix Vidal, Ana P.M. Teixeira, Ivan F. Souza, Luís C.C. Hurtarte, Danilo H.S. Silva, Luís F.J. Almeida, Franz Buegger, Edith C. Hammer, Jan Jansa, Carsten W. Mueller, Ivo R. Silva
Net rhizodeposition corresponds to the portion of living root carbon (C) that remains in the soil after microbial processing and partial decomposition. Although it is assumed that this C input exerts an important role in the formation of soil organic matter (SOM), its contribution to distinct SOM pools is still not fully understood. In this study, we aimed to (i) quantify the retention of net rhizodeposition
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Organic carbon stabilization in temperate paddy fields and adjacent semi-natural forests along a soil age gradient Geoderma (IF 6.1) Pub Date : 2024-02-24 Erik Schwarz, Anna Johansson, Cristina Lerda, John Livsey, Anna Scaini, Daniel Said-Pullicino, Stefano Manzoni
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Season affects soil oribatid mite communities more than tree diversity in subtropical forests Geoderma (IF 6.1) Pub Date : 2024-02-24 Yannan Chen, Ming-Qiang Wang, Xue Pan, Cheng Liang, Zhijing Xie, Stefan Scheu, Mark Maraun, Jun Chen
Biodiversity is declining on a global scale with detrimental effects on ecosystem functioning. Effects of reduced tree diversity on the diversity of aboveground animals have been studied in detail, whereas the response of soil animals remains poorly understood. We analyzed seasonal variations of soil oribatid mite communities as major soil detritivores along a tree diversity gradient as implemented
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Spatial variation of net methane uptake in Arctic and subarctic drylands of Canada and Greenland Geoderma (IF 6.1) Pub Date : 2024-02-24 Christian Juncher Jørgensen, Tue Schlaikjær Mariager, Jesper Riis Christiansen
The importance of uptake of atmospheric methane (CH) in dry Arctic soils for the total Arctic CH budget is unresolved. This is partly due to lack of data on the spatial variability of net CH consumption and understanding of the main process drivers. We measured net CH consumption in Arctic and subarctic landscapes located in in Disko Bay Area and Kangerlussuaq in Western Greenland and in the St. Elias
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Impact of maize residues decomposition on aggregate turnover Geoderma (IF 6.1) Pub Date : 2024-02-23 Yu Li, Yu Fu, Jinzhong Xu, Chen Zhang, Xiaoya Zhang, Hanzhe Lei, Yikai Zhao, Yupeng Zhang, Yuanyuan Dong
The decomposition of maize residues has a vital influence on soil aggregate buildup–breakdown (turnover) processes, but the following remain unclear: i) which size aggregates of Mollisols are primarily affected by the decomposition of maize residues and ii) the turnover proportions of these aggregates. In the study, rare earth oxides (REOs) were used to trace and quantify the buildup–breakdown paths
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Relevance of the organic carbon to clay ratio as a national soil health indicator Geoderma (IF 6.1) Pub Date : 2024-02-22 Eva Rabot, Nicolas P.A. Saby, Manuel P. Martin, Pierre Barré, Claire Chenu, Isabelle Cousin, Dominique Arrouays, Denis Angers, Antonio Bispo
The soil organic carbon (SOC) to clay-sized particles ratio (SOC/clay) has recently been selected as an indicator of the soil organic matter status in managed mineral soils within the framework of the European Soil Monitoring Law proposal. This indicator was initially developed to predict soil structural quality in a local study in Switzerland and was subsequently tested at national scales in England
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Borehole nuclear magnetic resonance as a promising 3D mapping tool in peatland studies Geoderma (IF 6.1) Pub Date : 2024-02-22 Seyyed Reza Mashhadi, Denys Grombacher, Dominik Zak, Poul Erik Lærke, Hans Estrup Andersen, Carl Christian Hoffmann, Rasmus Jes Petersen
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Quantification of soil organic carbon in particle size fractions using a near-infrared spectral library in West Africa Geoderma (IF 6.1) Pub Date : 2024-02-22 Aurélie Cambou, Issiakou A. Houssoukpèvi, Tiphaine Chevallier, Patricia Moulin, Nancy M. Rakotondrazafy, Eltson E. Fonkeng, Jean-Michel Harmand, Hervé N.S. Aholoukpè, Guillaume L. Amadji, Fritz O. Tabi, Lydie Chapuis-Lardy, Bernard G. Barthès
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Controls on phytolith stability upon exposure in paddy soils Geoderma (IF 6.1) Pub Date : 2024-02-22 Nicolai Koebernick, Robert Mikutta, Klaus Kaiser, Anika Klotzbücher, Anh T.Q. Nguyen, Minh N. Nguyen, Thimo Klotzbücher
Phytoliths are an important component in the cycling of silicon (Si) in rice cultivation, yet little is known about their medium to long-term stability. While it is commonly accepted that phytolith solubility in soil decreases with time, the mechanisms that cause this decrease remain unclear. Most studies on phytolith aging to date have been conducted under laboratory conditions and field studies are
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Microbial and enzymatic C:N:P stoichiometry are affected by soil C:N in the forest ecosystems in southwestern China Geoderma (IF 6.1) Pub Date : 2024-02-21 Shengzhao Wei, Shuang Ding, Honghong Lin, Yuan Li, Enwei Zhang, Taicong Liu, Xingwu Duan
Microbial and enzymatic stoichiometry have been widely used to reflect microbial nutrient limitations. However, the dominant drivers of microbial and enzymatic C:N:P ratios are not well known, which hinders our understanding of whether microbial and enzymatic stoichiometry can accurately reflect microbial resource limitation. Here, we studied vertical patterns (0–100 cm) of factors influencing microbial
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Soil colloids as binding agents in the formation of soil microaggregates in wet-dry cycles: A case study for arable Luvisols under different management Geoderma (IF 6.1) Pub Date : 2024-02-21 Ni Tang, Stefan Dultz, Daniel Gerth, Erwin Klumpp
In the hierarchical model of soil aggregates, small soil microaggregates (small SMA; <20 μm) are often considered to be fundamental building units at the micron scale. Below which, soil colloids (<1 µm) have recently been proposed as binding agents of (micro)aggregates. However, the way in which soil colloids contribute to the formation and stability of soil micro- and macroaggregates remains largely
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Severe degradation and artificial restoration diversely drive runoff and sediment processes in alpine meadows Geoderma (IF 6.1) Pub Date : 2024-02-21 Jiaxin Qian, Di Wang, Lirong Zhao, Zeng Cui, Shixiong Li, Yu Liu
Artificial grassland is considered an effective measure for restoring severely degraded grassland in alpine areas and has been widely applied on the Qinghai-Tibetan Plateau. However, the specific effects of artificial restoration and degradation on slope runoff and sediment yield are still poorly understood. In this study, we investigated the effects of artificial restoration and degradation on the
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Biochar mediates nitrogen investment strategy involved in Chinese fir growth as revealed by molecular information on soil dissolved organic matter Geoderma (IF 6.1) Pub Date : 2024-02-19 Youtao Si, Yapei Ma, Hui Chen, Fei Ge, Hongliang Ma, Ren Gao, Yunfeng Yin, Julian Merder
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Maize straw-based organic amendments and nitrogen fertilizer effects on soil and aggregate-associated carbon and nitrogen Geoderma (IF 6.1) Pub Date : 2024-02-18 Haiqing Chen, Yanan Hao, Yuqing Ma, Chunli Wang, Mengjie Liu, Imran Mehmood, Mingsheng Fan, Alain F. Plante
Application of organic amendments and N fertilizer can affect C and N sequestration, however, the degree to which diverse organic amendments and optimal N fertilization for matching demand for high crop productivity contributes to soil organic matter (SOM) of Cambisol in the North China Plain is not fully known. The objective was to evaluate the combined effects of annual maize straw-derived organic
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Rare earth element (REE) and arsenic mobility in acid mine drainage (AMD) impacted soil Geoderma (IF 6.1) Pub Date : 2024-02-17 Glenna Thomas, Craig Sheridan, Peter E. Holm
The mobility of rare earth elements (REE) and arsenic (As) from acid mine drainage (AMD) impacted soil was investigated in a column leaching study. AMD impacted soils from prominent gold and coal mining regions in South Africa were eluted with a 1 µM CaCl solution for 14 h and samples were collected at timed intervals corresponding to liquid to solid (L/S) ratios from 0 to 10. The results showed fast
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Bidirectional emission of organic compounds by decaying leaf litter of a number of forest-forming tree species in the northern hemisphere Geoderma (IF 6.1) Pub Date : 2024-02-15 Valery Isidorov, Jolanta Maslowiecka, Polina Sarapultseva
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Kinetics of phytate adsorption and response of phosphorus forms initially present in alkaline soils Geoderma (IF 6.1) Pub Date : 2024-02-13 Ana Mª García-López, Antonio Delgado, Claude Plassard
Although phytate is the most abundant organic P compound in soil, its sorption makes it poorly bioavailable through enzymatic hydrolysis. The sustainable use of the P resource in agriculture will require improving the supply of P to plants from organic P forms. To this end, further knowledge on dynamics of phytates in the soil is necessary, particularly in alkaline soils. This work aimed to study the
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Can we use a mid-infrared fine-ground soil spectral library to predict non-fine-ground spectra? Geoderma (IF 6.1) Pub Date : 2024-02-11 Yasas Gamagedara, Nuwan K. Wijewardane, Gary Feng, Cathy Seybold, Michael Williams, Mary Love Tagert, Vitor S. Martins
Mid-infrared (MIR) reflectance spectroscopy is a promising and rapid technology to accurately infer soil properties from a single scan. Fine-grinding is an expensive and time-consuming sample processing step in soil MIR spectroscopy that can have a major impact on spectral features and subsequent multivariate model calibrations. The use of existing fine-ground spectral libraries to predict soil properties
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Decreasing carbon allocation belowground in alpine meadow soils by shrubification Geoderma (IF 6.1) Pub Date : 2024-02-10 Xiao Ming Mou, Fen-Can Li, Bin Jia, Jie Chen, Zhen-Huan Guan, Yu-Qiang Li, Georg Guggenberger, Yakov Kuzyakov, Lin Wang, Xiao Gang Li
Distribution of shrubs expanding in grasslands – shrubification – is ongoing worldwide in grasslands and is common on the Qinghai–Tibetan Plateau (QTP). But the consequences of shrubification for plant carbon (C) input and fate in soil are unclear. We used C pulse labelling in a meadow on the QTP to compare photosynthetic capacity and photosynthate distribution in shoots, roots, soil and microbial
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25-years of stewardship programs enhance regenerative outcomes in river delta soils of southwestern British Columbia, Canada Geoderma (IF 6.1) Pub Date : 2024-02-10 Jordan H. Kersey, Siddhartho Shekhar Paul, Lyndsey Dowell, Maja Krzic, Sean M. Smukler
Agricultural stewardship programs that incentivize practices such as winter cover cropping (WCC), grassland set-asides (GLSA), and hedgerows (HR) for intensive annual agricultural production are often implemented to improve both soil conditions and provision of wildlife habitat in coastal agricultural systems of the Fraser River Delta, British Columbia (BC). Although these programs have been shown
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Putting cell size into perspective: Soil bacterial diversity and predictive function Geoderma (IF 6.1) Pub Date : 2024-02-09 Ran Xue, Erinne Stirling, Kankan Zhao, Yiling Wang, Shudi Ye, Jianming Xu, Bin Ma
Cell size is a key morphological trait which is associated with microbial activity and nutrient acquisition. However, it is still unclear whether bacteria of different sizes have similar structural and functional properties. In this study, we sorted bacterial cells into five size classes (small, slightly small, medium, slightly large, large) using FACS and compared their structural and functional profiles
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Roots have greater effects on the accumulation of soil microbial residue carbon in microaggregate fractions than leaf litter in a subtropical forest Geoderma (IF 6.1) Pub Date : 2024-02-06 Xuechao Zhao, Peng Tian, Qingkui Wang
Microbial residues as the key component of the stable soil organic carbon (SOC) play a critical role in stabilizing SOC, and their accumulation is influenced by plant litter. However, how the accumulation of microbial residues in different aggregate fractions of forest soils responds to changes in the inputs of leaf and root litter remains poorly understood. Here, we test the hypothesis that root exclusion
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Silicon fertiliser application increases the terrestrial ecosystem carbon pool at the global scale Geoderma (IF 6.1) Pub Date : 2024-02-06 Yifei Chen, Dongmei He, Hangsheng Wu, Yuru Li, Peiyao Li, Haifeng Huang, Xiaoli Liao, Qingyan Qiu, Jianliang Liu, Yanjie Liu, Yalin Hu, Shuijing Zhai, Xinhou Zhang, Dexiang Zheng, Shaofei Jin
Silicon fertilisers are widely utilised to achieve higher productivity in global terrestrial ecosystems, but their impact on the carbon cycle remains unclear. In this study, we used a -analysis approach to quantify the response of carbon pools and fluxes in terrestrial ecosystems worldwide to the application of silicon fertiliser while also investigating the factors influencing this response. The findings
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Inorganic nitrogen and glucose additions alter the short-term formation efficiency of mineral associated organic matter carbon Geoderma (IF 6.1) Pub Date : 2024-02-06 Kirsty C. Paterson, Joanna M. Cloy, Robert M. Rees, Sarah Buckingham, Elizabeth M. Baggs
Carbon within mineral associated organic matter (MAOM) is an important persistent form of soil organic carbon (SOC). However, processes driving the retention of new labile C in MAOM are not fully understood. We investigated the effects of glucose and ammonium nitrate (AN) addition on the short-term (72 h) retention of applied C-glucose within MAOM. We found an interactive effect of AN addition with