Reduced Precipitation Frequency Decreases the Stability of the Soil Organic Carbon Pool by Altering Microbial Communities in Degraded Grasslands DOI Creative Commons
Junda Chen, Yifan Gao, Yuan Zeng

и другие.

Agronomy, Год журнала: 2025, Номер 15(4), С. 977 - 977

Опубликована: Апрель 17, 2025

Decreasing precipitation frequency (DPF) has the potential to alter soil microbial community structure, enzyme activity, and stoichiometry of biomass in grassland ecosystems. Grasslands have undergone degradation, often driven by anthropogenic activities such as overgrazing, which further intensifies their sensitivity environmental changes altered precipitation. Changes communities can turn impact organic carbon pool (SOCP) its stability, particularly degraded grasslands shaped agricultural practices. Here, we evaluated how DPF affects different types pools, biomass, activity exoenzymes related nutrient acquisition three steppe representing a degradation gradient (from light moderate severe degradation). We also developed systematic model linking stoichiometry, SOCP stability. Our results showed that significantly reduced total (STCP), SOCP, dissolved (DOCP) all grasslands, while it increased DOCP/SOCP ratio with indicating lower stability SOCP. Decreased but had opposite effect on degradation. Additionally, promoting effects fungi/bacteria β-1,4-xylosidase diminished increasing The ratio, carbon/nitrogen were identified main predictors for In lightly moderately decreased water content (SWC) moisture variation induced promoted decreasing ratio. under highlights challenges posed climate change regarding sequestration these fragile stress importance targeted management agriculture livestock management, could be achieved altering For example, fertilization increases availability, enhances growth, shifts C/N/P ratios, allocation over respiration thus enhancing retention.

Язык: Английский

Precipitation alters the relationship between biodiversity and multifunctionality of grassland ecosystems DOI
Minxia Liu,

Yindi Xiao,

Jianyang Shi

и другие.

Journal of Environmental Management, Год журнала: 2025, Номер 377, С. 124707 - 124707

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Reduced Precipitation Frequency Decreases the Stability of the Soil Organic Carbon Pool by Altering Microbial Communities in Degraded Grasslands DOI Creative Commons
Junda Chen, Yifan Gao, Yuan Zeng

и другие.

Agronomy, Год журнала: 2025, Номер 15(4), С. 977 - 977

Опубликована: Апрель 17, 2025

Decreasing precipitation frequency (DPF) has the potential to alter soil microbial community structure, enzyme activity, and stoichiometry of biomass in grassland ecosystems. Grasslands have undergone degradation, often driven by anthropogenic activities such as overgrazing, which further intensifies their sensitivity environmental changes altered precipitation. Changes communities can turn impact organic carbon pool (SOCP) its stability, particularly degraded grasslands shaped agricultural practices. Here, we evaluated how DPF affects different types pools, biomass, activity exoenzymes related nutrient acquisition three steppe representing a degradation gradient (from light moderate severe degradation). We also developed systematic model linking stoichiometry, SOCP stability. Our results showed that significantly reduced total (STCP), SOCP, dissolved (DOCP) all grasslands, while it increased DOCP/SOCP ratio with indicating lower stability SOCP. Decreased but had opposite effect on degradation. Additionally, promoting effects fungi/bacteria β-1,4-xylosidase diminished increasing The ratio, carbon/nitrogen were identified main predictors for In lightly moderately decreased water content (SWC) moisture variation induced promoted decreasing ratio. under highlights challenges posed climate change regarding sequestration these fragile stress importance targeted management agriculture livestock management, could be achieved altering For example, fertilization increases availability, enhances growth, shifts C/N/P ratios, allocation over respiration thus enhancing retention.

Язык: Английский

Процитировано

0