Article
Soil Science
Matthias Waibel, Kevin McDonnell, Maria Tuohy, Sally Shirran, Sylvia Synowsky, Barry Thornton, Eric Paterson, Fiona Brennan, Florence Abram
Summary: Soil organic matter (SOM) is complex and important for providing nutrients to plants. Understanding SOM utilisation processes can improve fertiliser management for plant growth and reduce environmental losses. Metaproteomics can characterise protein profiles and provide insights into SOM microbial decomposition mechanisms. This study applied different extraction methods to recover SOM with different characteristics in two soil types and analysed peptide identification using liquid chromatography and tandem mass spectrometry. The results showed contrasting protein and humic substance content in different extracts, and diverse peptide hits associated with Proteobacteria and derived taxa. This work suggests areas for optimisation in chromatography and mass spectrometry to characterise SOM-associated metaproteomes.
EUROPEAN JOURNAL OF SOIL SCIENCE
(2023)
Article
Soil Science
YunFei Zhao, Xia Wang, Fei Chen, Jia Li, JinHong Wu, YuXin Sun, YuanYe Zhang, Tao Deng, SiLong Jiang, XiaoHe Zhou, HuiYing Liu
Summary: In this study, the link between aboveground biomass (AGB) and soil organic matter (SOM) across 209 alpine grassland sites on the Tibetan Plateau was evaluated. It was found that AGB decreased with increasing aridity severity above a threshold of 0.37. Additionally, a stronger positive relationship between AGB and SOM was observed in more arid conditions beyond an aridity threshold of 0.64. The results highlight the importance of soil carbon sequestration strategies for biomass production and climate change mitigation in arid areas.
Article
Soil Science
Karen Baumann, Kai-Uwe Eckhardt, Ingo Schoening, Marion Schrumpf, Peter Leinweber
Summary: The study found that grassland management plays a significant role in influencing the composition and stability of soil organic matter (SOM), impacting the dynamics of SOM in grasslands. However, the proportion and composition of the soil clay fraction, particularly when the soil clay/OC ratio is low, can override the effects of grassland management on SOM composition and stability.
SOIL USE AND MANAGEMENT
(2022)
Article
Agronomy
Marcin Becher, Miroslaw Kobierski, Krzysztof Pakula, Dawid Jaremko
Summary: The secondary transformation of organic matter in drained peatlands of the temperate climate zone has a significant effect on the total mercury content and stock in soils. This research is of great importance for soil monitoring and planning the restoration of peatlands.
Article
Agriculture, Multidisciplinary
Maria De Bernardi, Maria Eugenia Priano, Maria Elena Fernandez, Javier Gyenge, Maria Paula Juliarena
Summary: Changes in land use and soil management affect methane flux and diffusivity, with different land use types showing varying methane absorption capacities. Methane flux varies with seasons and space, correlated with water-filled pore space and air-filled pore space variables.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2022)
Article
Geosciences, Multidisciplinary
Zi-Qiang Yuan, Xiao-Jin Jiang
Summary: Through redundancy analysis of Tibetan alpine meadows, this study identified key factors and interactions driving soil SOC and N contents, emphasizing the importance of considering the covariation of vegetation and soil when evaluating SOC and N dynamics.
Article
Soil Science
Xiaofang Zhang, Qi Feng, Jan F. Adamowski, Asim Biswas, Jianjun Cao, Wei Liu, Yanyan Qin, Meng Zhu
Summary: Changes in land use on China's Loess Plateau have a significant impact on soil microbial communities, with grassland afforestation and the abandonment of arable land leading to changes in bacterial and fungal diversity and composition. These findings have important ecological implications and can inform land management decisions in the study area and similar ecologically-fragile regions.
APPLIED SOIL ECOLOGY
(2023)
Article
Soil Science
Chris Graham, Harold van Es, Debankur Sanyal
Summary: In the northern Great Plains, the conversion of native grassland to crops has led to decreased soil health, with soil health declining more rapidly under conventional tillage practices during the first year of conversion. The Comprehensive Assessment for Soil Health (CASH) provides a framework for monitoring the effects of land use change and can help land managers identify potential soil constraints and interventions.
Article
Environmental Sciences
Enqing Hou, Jennifer A. Rudgers, Scott L. Collins, Marcy E. Litvak, Carleton S. White, Douglas I. Moore, Yiqi Luo
Summary: This study examined the impact of climate and prescribed fire on soil organic matter (SOM) in a Chihuahuan Desert grassland in central New Mexico, USA. The results showed that SOM concentration fluctuated seasonally, with a nonlinear decline in wet seasons and a peak in dry seasons. Additionally, SOM concentration decreased by 14% following prescribed fire and this response magnified over time.
Article
Ecology
Yankun Zhu, Haihua Shen, Yinping Feng, He Li, Damilare Stephen Akinyemi, Huifeng Hu, Jingyun Fang
Summary: Shrub encroachment can lead to changes in soil aggregates and associated organic carbon, with varying effects at different soil depths and in different grassland types. Determining the size structure of soil aggregates and their relation to carbon content is necessary for accurately predicting SOC dynamics with shrub encroachment.
Article
Soil Science
Xiaohan Mo, Mengke Wang, Yinghui Wang, Xunwen Chen, Ang Zhang, Hui Zeng, Yan Zheng, Deliang Kong, Junjian Wang
Summary: Rhizosheaths are aggregated, sheath-like soils that physically adhere to root surface, and they have distinct soil organic carbon (SOC) signatures from rhizosphere soils of non-rhizosheath forming plants. The molecular characteristics of rhizosheath SOC, including more root inputs of labile substrates and relatively recalcitrant compounds, as well as its temporal dynamics, suggest a critical role of rhizosheath in shaping the rhizosphere microenvironment and regulating SOC cycling.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Agriculture, Multidisciplinary
Janine Moll-Mielewczik, Sonja G. Keel, Andreas Gubler
Summary: Long-term monitoring of soil organic carbon (SOC) content and stocks is crucial for climate change and carbon sequestration. Field data and models are used to report changes in SOC stocks and validate models. This study presents SOC measurements from 1985 to 2014 in Swiss grassland sites and compares them with predictions from the RothC model. While there was no general trend in measured data, the model showed a good fit in two-thirds of the cases.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Agronomy
Cheng Ren, Kesi Liu, Pengpeng Dou, Jiahuan Li, Kun Wang
Summary: The conversion of grasslands to croplands has significant impacts on soil aggregate status and soil environment. As the managed years increase, large macro-aggregates decrease while small macro-aggregates and micro-aggregates increase. Soil chemical properties and microorganisms decrease at the early stage of conversion but can recover to or exceed the levels of unmanaged grasslands after about 50 years of cultivation. The stability of aggregates is closely related to microorganisms and soil chemical properties.
Article
Ecology
Yanan Wei, Xin Jing, Fanglong Su, Zhen Li, Fuwei Wang, Hui Guo
Summary: This study found that short-term soil acidification has greater negative effects on ecosystem multifunctionality than expected. Plant-related factors play a crucial role in mediating ecosystem multifunctionality, with stronger effects than soil properties and microbial factors.
FUNCTIONAL ECOLOGY
(2022)
Article
Agronomy
Pei-Tzu Kao, Heather L. Buss, Steve P. McGrath, Tegan Darch, Helen E. Warren, Michael R. F. Lee
Summary: This study aimed to investigate the effect of applying different types of ruminant excreta in soils of different organic matter contents on selenium uptake by forage. The results showed that the application of excreta did not increase selenium concentration and accumulation in the perennial ryegrass. Therefore, supplementing selenium directly to animals is more recommended than applying animal manure to soil, as the application may lead to selenium reduction and decrease selenium uptake by grass.
Article
Agronomy
Marie-Liesse Aubertin, Cyril Girardin, Sabine Houot, Cecile Nobile, David Houben, Sarah Bena, Yann Le Brech, Cornelia Rumpel
Summary: Adding biochar to compost as a soil amendment is increasingly popular, but little is known about the evolution of material properties of biochar-compost mixtures after exposure to physical weathering. This study found that biochar-compost interactions can reduce mass loss and retain fixed carbon, leading to positive effects on plant growth. As weathering progresses, carbon mineralization of biochar-compost mixtures increases, potentially benefiting plant growth.
Article
Soil Science
Bruno Mbe, Olivier Monga, Valerie Pot, Wilfred Otten, Frederic Hecht, Xavier Raynaud, Naoise Nunan, Claire Chenu, Philippe C. Baveye, Patricia Garnier
Summary: This study aimed to use the Mosaic simulator to analyze carbon mineralization under different microscale environmental conditions and determine how soil structure descriptors could explain CO2 emissions.
EUROPEAN JOURNAL OF SOIL SCIENCE
(2022)
Article
Soil Science
Alexandre Coche, Tristan Babey, Alain Rapaport, Laure Vieuble Gonod, Patricia Garnier, Naoise Nunan, Jean-Raynald de Dreuzy
Summary: The bacterial traits in soils play a significant role in the decomposition of organic matter, but have received little attention. A bioreactive transport model was developed to investigate the interactive impacts of spatial dispersion and bacterial traits on mineralization. The study found that bacterial dispersion and traits have a substantial influence on the mineralization process of organic substances in soils.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Review
Environmental Sciences
Peter M. Kopittke, Asmeret Asefaw Berhe, Yolima Carrillo, Timothy R. Cavagnaro, Deli Chen, Qing-Lin Chen, Mercedes Roman Dobarco, Feike A. Dijkstra, Damien J. Field, Michael J. Grundy, Ji-Zheng He, Frances C. Hoyle, Ingrid Kogel-Knabner, Shu Kee Lam, Petra Marschner, Cristina Martinez, Alex B. McBratney, Eve McDonald-Madden, Neal W. Menzies, Luke M. Mosley, Carsten W. Mueller, Daniel V. Murphy, Uffe N. Nielsen, Anthony G. O'Donnell, Elise Pendall, Jennifer Pett-Ridge, Cornelia Rumpel, Iain M. Young, Budiman Minasny
Summary: Healthy soils play a crucial role in planetary survivability, providing not only calories but also other essential functions. However, intensive agriculture is rapidly degrading soils and diminishing their capacity to deliver vital functions, highlighting the need to focus on the multiple functions of soils for long-term human welfare and the survivability of the planet.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Biodiversity Conservation
Frederique Changey, Naoise Nunan, Anke M. Herrmann, Thomas Z. Lerch
Summary: Recent advances in molecular ecology have improved our understanding of soil microbial diversity and provided new indicators of soil quality. This study investigated the effect of taxonomic resolution on alpha- and beta-diversity indices of bacterial communities in response to different soil organic matter management. The results showed that higher taxonomic resolution increased the discrimination potential for beta-diversity but not for alpha-diversity indices. The relative importance of hierarchical drivers of soil microbial communities also varied depending on the taxonomic resolution. Molecular fingerprints were consistent indicators for monitoring the effect of agricultural management on beta-diversity but not on alpha-diversity. These findings contribute to the efficiency and robustness of using sequencing data in soil biodiversity monitoring.
ECOLOGICAL INDICATORS
(2022)
Article
Soil Science
Patricia Poblete-Grant, Paula Cartes, Sofia Pontigo, Philippe Biron, Maria de La Luz Mora, Cornelia Rumpel
Summary: This study investigated the effects of organic fertilizer (poultry manure compost), mineral fertilizer (rock phosphate), and their mixture on the transfer of organic carbon (OC) from plants to soil. It found that poultry manure compost and its mixture with rock phosphate increased root biomass and root-derived OC transfer to active pools compared to rock phosphate alone. Soil amended with poultry manure compost also had higher microbial biomass contents than soil with mineral fertilization.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Editorial Material
Environmental Sciences
Abad Chabbi, Cornelia Rumpel, Frank Hagedorn, Marion Schrumpf, Philippe C. Baveye
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Soil Science
Louis J. P. Dufour, Anke M. Herrmann, Julie Leloup, Cedric Przybylski, Ludovic Foti, Luc Abbadie, Naoise Nunan
Summary: This study investigates how the properties of readily available organic matter affect the metabolic activity of microbial communities in soils. The findings suggest that microbial communities preferentially use organic matter with a high potential energetic return on investment.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Environmental Sciences
Gabin Colombini, Cornelia Rumpel, Sabine Houot, Philippe Biron, Marie -France Dignac
Summary: The input of microplastics into agroecosystems, especially through compost application, is a major concern. This study evaluates the impact of different composts derived from urban waste on the quantity of coarse microplastics in soils. The results indicate that composts made from municipal solid waste result in the highest quantity of plastic particles in soils, highlighting the need to reduce plastic use and improve waste sorting.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
I. Nogues, C. Rumpel, M. Sebilo, V. Vaury, R. Moral, M. A. Bustamante
Summary: This study assessed the fate of C and N compounds during the composting process of cattle and pig slurry anaerobic digestates. It found that there was no isotopic discrimination during composting, indicating the previous stabilization of the manure. Additionally, the composts increased N values and delta N-15 soil values, and the plants grown on compost-amended soils showed higher N and delta N-15 abundance compared to control and inorganic fertilized plants. Overall, the delta N-15 abundance of anaerobic digestate composts could be a useful tool for detecting the type of fertilizer used in agricultural production.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Microbiology
Eulalia Sans-Serramitjana, Carla Gallardo-Benavente, Francisco Melo, Jose M. Perez-Donoso, Cornelia Rumpel, Patricio Javier Barra, Paola Duran, Maria de La Luz Mora
Summary: This study examined the biosynthesis and characterization of selenium nanoparticles (SeNPs) using two endophytic selenobacteria. The results showed that both strains were suitable for producing SeNPs with different properties. The SeNPs were surrounded by the proteins, lipids, and polysaccharides of bacterial cells, and the functional groups present in SeNPs from one strain were higher in number than in the other strain. The findings support the potential of these endophytic strains as biocatalysts for producing high-quality Se-based nanoparticles, and future efforts should focus on evaluating their bioactivity and determining how the different features of each SeNP modulate their biological action and stability.
Article
Environmental Sciences
Francisco Ruiz, Jose Lucas Safanelli, Fabio Perlatti, Mauricio Roberto Cherubin, Jose A. M. Dematte, Carlos Eduardo Pellegrino Cerri, Xose Luis Otero, Cornelia Rumpel, Tiago Osorio Ferreira
Summary: It is estimated that if all legal active mining sites in Brazil are exploited over the next decades, it could result in the emission of 2.55 Gt CO2eq, largely due to the loss of vegetation and soil. To offset these emissions, the construction of soils from mine and other wastes (Technosols) is proposed, which could potentially offset up to 60% (1.00 Gt CO2eq) of soil-related CO2 emissions and restore important soil-related ecosystem services.
COMMUNICATIONS EARTH & ENVIRONMENT
(2023)
Article
Marine & Freshwater Biology
Imen Louati, Naoise Nunan, Kevin Tambosco, Cecile Bernard, Jean-Francois Humbert, Julie Leloup
Summary: This study investigated the correlation between bacterioplankton composition and phytoplankton dynamics in a shallow lake known for recurrent cyanobacterial blooms. Changes in bacterial community occurred before the development of the phytoplankton bloom, suggesting that the environmental changes were first sensed by the bacterial community. The study also highlighted the relevance of spatial organization within different microenvironments in shaping these communities.
Article
Soil Science
Francisco Ruiz, Cornelia Rumpel, Marie-France Dignac, Francois Baudin, Tiago Osorio Ferreira
Summary: In this study, the biological and thermal stability of mixed-nature soil organic matter (SOM) derived from grass litter and kerogen was assessed. The results showed that the chemical recalcitrance of kerogen compounds had a significant impact on short-term biological stability and was strongly correlated with thermal stability indices.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Chemistry, Analytical
Guanshuai Zhang, Shanjian Liu, Dongmei Bi, Zhisen He, Jia Liu, Yinjiao Liu
Summary: Hydrogen peroxide pretreatment was applied for fast pyrolysis of corn stalks, and it was found that the pretreatment effectively promoted lignin depolymerization and decreased the reaction activation energy. The pretreatment also increased the cellulose content and removed alkali and alkaline earth metals from the biomass. The pH of the hydrogen peroxide solution affected the removal of lignin and ash by the pretreatment, and the composition of bio-oil changed significantly, with a significant increase in the relative content of levoglucosan after pretreatment.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2024)
