Global patterns of soil greenhouse gas fluxes in response to litter manipulation

作者：Yue Fan, Yan-Jun Zhang, Bruce Osborne, Junliang Zou · 发表于：Cell Reports Sustainability · 年份：2024 · DOI：10.1016/j.crsus.2023.100003 · 被引用次数：5 · 研究领域：Soil Carbon and Nitrogen Dynamics、Peatlands and Wetlands Ecology、Fire effects on ecosystems

Soil greenhouse gas (GHG) emissions are influenced by litter inputs, but the impact of these inputs is uncertain. This study addresses this gap by conducting a meta-analysis of 115 published articles to investigate the global responses of soil GHG fluxes to altered litter inputs and the potential factors that drive these responses. The findings suggest that litter changes significantly influence soil GHG fluxes, such that litter removal greatly decreases soil CO2 and N2O emissions, while doubling the amount of litter significantly enhances soil CO2, CH4, and N2O emissions. Also, the impact of litter on soil CO2 and N2O fluxes is affected by other factors such as ecosystem type, climatic factors, soil pH, and litter quality. These findings have important implications for climate change mitigation and sustainable soil management.