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Microbial Necromass in Soils—Linking Microbes to Soil Processes and Carbon Turnover

Frontiers in Environmental Science, 2021
The organic matter of living plants is the precursor material of the organic matter stored in terrestrial soil ecosystems. Although a great deal of knowledge exists on the carbon turnover processes of plant material, some of the processes of soil organic
M. Kästner, A. Miltner, S. Thiele-Bruhn, C. Liang, C. Liang   +4 more
doaj   +1 more source

Contribution of soil microbial necromass to SOC stocks during vegetation recovery in a subtropical karst ecosystem

, 2020
Carbon sequestration is a key soil function, and an increase in soil organic carbon (SOC) is an indicator of ecosystem recovery because it underpins other ecosystem services by acting as a substrate for the soil microbial community.
Wen, X., Green, S. M., Dungait, J. A. J., Quine, T. A., Guo, Z., Zhang, X.   +5 more
core   +1 more source

Formation of necromass-derived soil organic carbon determined by microbial death pathways

, 2023
Soil organic matter is the dominant carbon pool in terrestrial ecosystems, and its management is of increasing policy relevance. Soil microbes are the main drivers of soil organic carbon sequestration, especially through accumulation of their necromass ...
Rillig, Matthias C., Camenzind, Tessa, Lehmann, Johannes, Mansour, India, Mason-Jones, Kyle   +4 more
core   +1 more source

Alder expansion increases soil microbial necromass carbon in a permafrost peatland of Northeast China

Ecological Indicators, 2022
Northern peatlands have undergone widespread expansion of nitrogen (N)-fixing woody plants such as alder species. However, how alder expansion alters soil microbial necromass carbon (C) is unclear in these ecosystems.
Guang-Jiao Chen, Fu-Xi Shi, Qin Ying, Rong Mao   +3 more
doaj   +1 more source

Moss biocrusts enhance soil carbon stabilization via microbial necromass accumulation in the karst rocky desertification region of eastern Yunnan, China

Ecological Indicators
Karst ecosystems are globally important carbon sinks, yet the escalating severity of rocky desertification is causing continuous losses of soil carbon stocks.
Mengting Niu, Wei Li, Ruilong Huang, Zhuanfei Zeng, Cunxiu Wang, Dongmei Pu, Bo Hu   +6 more
doaj   +1 more source

Depth-dependent drivers of soil microbial necromass carbon across Tibetan alpine grasslands

, 2022
Microbial necromass carbon (C) has been considered an important contributor to persistent soil C pool. However, there still lacks large-scale systematic observations on microbial necromass C in different soil layers, particularly for alpine ecosystems ...
Qin, Shuqi, He, Hongbo, Yang, Yuanhe, Kou, Dan, Chen, Leiyi, He, Mei, Liang, Chao, Feng, Xuehui, Fang, Kai   +8 more
core   +1 more source

Mineralogy dictates the initial mechanism of microbial necromass association

Geochimica et Cosmochimica Acta, 2019
Abstract Soil organic matter (SOM) improves soil fertility and mitigates disturbance related to climate and land use change. Microbial necromass (the accumulated cellular residues of microorganisms) comprises the majority of soil C, yet the formation and persistence of necromass in relation to mineralogy is poorly understood.
Courtney A. Creamer, Andrea L. Foster, Corey Lawrence, Jack McFarland, Marjorie Schulz, Mark P. Waldrop   +5 more
openaire   +2 more sources

Organic Matter Quality and Microbial Activity in Soils Managed With Brachiaria Succession

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Although succession systems and brachiaria improve soil quality, gaps remain in microbial community dynamics, activity, and soil organic matter stocks. Methods The objective was to evaluate the carbon (C) and nitrogen (N) stocks of soil organic matter fractions and their distribution, molecular characterization, enzyme activity ...
Siro Paulo Moreira, Vanessa Maria de Souza Barros, David Gabriel Campos Pereira, Humberto Josué de Oliveira Ramos, Eric Batista Ferreira, Teogenes Senna de Oliveira   +5 more
wiley   +1 more source

Small‐Scale Topographic Variability Shapes Molecular Diversity of Organic Matter in Coastal Dune Soils

Journal of Plant Nutrition and Soil Science, EarlyView.
Topography shapes ecosystem controls, driving microclimate, hydrology, and vegetation, which, in turn, influence topsoil traits and DOM composition in coastal dune soils. Distinct molecular patterns emerge across north‐facing and south‐facing slopes and dune valleys.
Lejonina Herting, Hannelore Waska, Kojo Amoako, Stephan L. Seibert, Gudrun Massmann, Philipp Maurischat   +5 more
wiley   +1 more source

Bacterial Necromass Is Rapidly Metabolized by Heterotrophic Bacteria and Supports Multiple Trophic Levels of the Groundwater Microbiome

Microbiology Spectrum, 2022
Pristine groundwater is a highly stable environment with microbes adapted to dark, oligotrophic conditions. Input events like heavy rainfalls can introduce the excess particulate organic matter, including surface-derived microorganisms, thereby ...
Patricia Geesink, Martin Taubert, Nico Jehmlich, Martin von Bergen, Kirsten Küsel   +4 more
doaj   +1 more source