Results 21 to 30 of about 1,296 (160)

The divergent accumulation mechanisms of microbial necromass C in paddy soil under different long-term fertilization regimes

Geoderma, 2023
To investigate the stabilization mechanism of microbial necromass carbon (C) in rice paddy soil, the accumulation of microbial necromass and its contribution to SOC in bulk soil and in various fractions were addressed under a 40-year fertilization trial.
Li Xiong, Marios Drosos, Ping Wang, Wenxue Zhang, Wei Jin, Shaoxian Wang, Antonio Scopa, Zengbing Liu, Caihong Shao, Gang Sun, Kailou Liu   +10 more
doaj   +1 more source

Microbial necromass response to soil warming: A meta-analysis

Frontiers in Soil Science, 2022
Microbial-derived soil organic matter (SOM), or necromass, is an important source of SOM and is sensitive to climate warming. Soil classification systems consider soil physicochemical properties that influence SOM, hinting at the potential utility of ...
Megan F. Mitchell, Megan F. Mitchell, Meghan Graham MacLean, Kristen M. DeAngelis   +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

Fast-decaying tree litter reduces the temperature sensitivity of soil carbon decomposition by increasing microbial necromass carbon

Geoderma
Improvements in stocks and stability of forest soil organic carbon can be achieved through the management of tree species. Given the long lifespan of trees and their role as the keystone species in forested ecosystems, decisions regarding tree species ...
Ruihan Li, Chuankuan Wang, Chunhua Lv, Tao Zhou, Shuang Yin, Zhenghu Zhou   +5 more
doaj   +1 more source

Straw return combined with water-saving irrigation increases microbial necromass accumulation by accelerating microbial growth-turnover in Mollisols of paddy fields

Geoderma
Soil microorganisms are key to the flow of carbon through soils. As the most carbon-rich soils, Mollisols are very sensitive to disturbance and more prone to be carbon sources than carbon sinks. To understand how the microbial physiology [i.e., microbial
Peng Chen, Junzeng Xu, Kechun Wang, Zhongxue Zhang, Zhaoqiang Zhou, Yawei Li, Tiecheng Li, Tangzhe Nie, Qi Wei, Linxian Liao   +9 more
doaj   +1 more source

Increased microbial sequestration of soil organic carbon under nitrogen deposition over China’s terrestrial ecosystems

Ecological Processes, 2020
Background China’s terrestrial ecosystems have been receiving increasing amounts of reactive nitrogen (N) over recent decades. External N inputs profoundly change microbially mediated soil carbon (C) dynamics, but how elevated N affects the soil organic ...
Shu Liao, Siyi Tan, Yan Peng, Dingyi Wang, Xiangyin Ni, Kai Yue, Fuzhong Wu, Yusheng Yang   +7 more
doaj   +1 more source

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

Topographic and Climatic Determinants of Soil Organic Carbon Across Landscapes: A Meta‐Analysis

Land Degradation &Development, EarlyView.
ABSTRACT The soil is the greatest natural store of organic carbon, holding between 1500 to 1550 Pg C of organic carbon at the top 100 cm of the soil globally—roughly twice the carbon pool in the atmosphere. The spatial distribution of this stock is controlled by a complex chain of controls: topographic position regulates the hydrological redistribution,
Vishal Sharma, Syed Hujjat ul Baligah, Tajamul Islam Shah, Shahid Shuja Shafai, Owais Bashir, Syed Sheraz Madhi, S. Naresh Kumar, Ayyandar Arunachalam, Shabir Ahmed Bangroo   +8 more
wiley   +1 more source

Higher NO3−‐N Levels Under Mulberry (Morus alba L.) Planting Enhanced CAZyme Abundance, Increasing Soil Carbon Stability

Land Degradation &Development, EarlyView.
ABSTRACT Afforestation is widely advocated for boosting carbon (C) sequestration. However, the stability of soil C pools in economically and culturally significant mulberry plantations remains poorly understood. The soil organic C (SOC) contents in different aggregates and the oxidizable OC fractions were measured.
Zi Yang, Weiguo Zhao, Jinjin Yang, Zhenjiang Wang, Weijun Zhu, Changyu Qiu, Qiang Lin, Meina Zhu, Mengdi Zhao   +8 more
wiley   +1 more source