每年落叶的
温带落叶林
农林复合经营
生物量(生态学)
环境科学
温带森林
温带雨林
干旱
亚热带
热带和亚热带湿润阔叶林
热带亚热带干阔叶林
群落结构
温带气候
地理
生态学
生态系统
生物
作者
Guoping Chen,Qiong Cai,Suhui Ma,Yuhao Feng,Wenjing Fang,Chengjun Ji,Jieshun Zhu,Zhiheng Wang,Shaopeng Wang,Zhiyao Tang,Jingyun Fang
标识
DOI:10.1111/1365-2745.14042
摘要
Abstract Forests provide a huge carbon pool, a substantial portion of which is stored in above‐ground biomass (AGB). Deciduous broadleaf forests in China are an essential component of global deciduous broadleaf forests, yet the impacts of climate and forest attributes on their AGB are not well understood. Using a comprehensive forest inventory database from 772 plots distributed across temperate and subtropical deciduous broadleaf forests in China (23.51°–42.53°N and 104.24°–128.27°E), we applied variance partitioning analysis, model selection analysis and structural equation models to explore how climate and forest attributes (species diversity, community‐level functional traits and stand structures) affect AGB in different climatic forests (semi‐arid forests, semi‐humid forests and humid forests). Community‐level functional traits and stand structures together explained a great portion of the variance in AGB. The effect of community‐level functional traits was greater than that of stand structures in semi‐arid forests and semi‐humid forests, but smaller in humid forests. Further analyses showed that community‐level maximum tree height, stem density and tree size inequality were important explanatory variables. Although climate and species diversity had minor effects, the direct positive effect of mean annual precipitation (MAP) was still important, especially in semi‐arid forests. Synthesis . Community‐level functional traits but not species diversity were key drivers of AGB, indicating that tree species diversity loss may not impair AGB substantially in deciduous broadleaf forests in China. Moreover, stand structures also had strong effects on AGB in both semi‐arid forests and humid forests, highlighting the importance of structural complexity. In addition, MAP had a direct positive effect on AGB in semi‐arid forests and semi‐humid forests, and a future increase in drought might potentially reduce carbon storage in these forests.
科研通智能强力驱动
Strongly Powered by AbleSci AI