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气候变暖对热带森林有何影响?国际最新研究称或加快土壤呼吸
Zhong Guo Xin Wen Wang· 2025-09-17 08:53
Core Insights - The latest research published in the journal "Nature Communications" indicates that climate warming may accelerate soil respiration rates in tropical forests, leading to increased carbon loss from soil, which could impact global climate predictions [1][2] Group 1: Research Findings - A field experiment showed that soil respiration rates in warmed plots were found to be 42%-204% higher than in control plots, reaching some of the highest soil respiration rates reported in terrestrial ecosystems [2] - The additional carbon released from warmed plots was estimated to be between 6.5 to 81.7 tons per hectare annually, depending on the slope position, with the highest carbon release occurring in upper slope areas [2] - The authors suggest that these increases may be due to changes in the microbial community functions in warmed soils, affecting their ability to metabolize carbon or altering the composition of microbial communities [2] Group 2: Implications - The study's findings indicate that in a warmer world, tropical forest ecosystems may experience significant carbon loss, highlighting the importance of further research to understand the underlying mechanisms of these processes for assessing the long-term impacts of climate change [2]