%0 Journal Article %A ZHANG Lu %A HUANG Jin-quan %A LIU Ji-gen %A PAN Hong-zhong %A QI Yu-jie %A LI Wei-wen %A LIU Xiao-lan %T Response Mechanism of Soil Respiration to Warming: A Meta-analysis %D 2025 %R 10.11988/ckyyb.20230846 %J Journal of Changjiang River Scientific Research Institute %P 82-89 %V 42 %N 1 %X

The effect of warming on soil respiration plays a crucial role in the global carbon cycle. To investigate the effects of global climate change on soil respiration, a meta-analysis was conducted to quantitatively assess the changes in soil respiration rate under warming conditions. Using 160 effective datasets from relevant studies both in China and abroad, we explored the responses of soil respiration to warming. Results indicate that compared to unheated conditions, warming significantly increases soil respiration rate (by 12.4%, P<0.05). Warming magnitude has the largest impact on soil respiration (increased by 22.9%), followed by annual mean temperature (increased by 14.4%), annual precipitation (increased by 12.4%), climate type (increased by 11.8%), and soil type (increased by 11.1%) in descending order. Principal component analysis reveal that annual mean temperature is the most influential factor affecting soil respiration under warming conditions. Statistical methods provide a deeper understanding of the effects of warming on soil respiration, contributing to the enrichment of ecosystem carbon cycle theories under changing environments and offering scientific evidence for the implementation of the national “dual carbon” strategy.

%U http://ckyyb.crsri.cn/EN/10.11988/ckyyb.20230846