降水和土壤磷调节热带森林在干旱后的恢复能力

1. 信息

2. 摘要

Tropical forests are increasingly affected by drought, yet the factors that control post-drought ecosystem resilience—the capacity to withstand disturbances—are not fully understood. Here we use temporal autocorrelation of satellite-derived vegetation greenness to quantify ecosystem resilience following 142,444 severe drought events across tropical forests from 2003 to 2022. We show that resilience declined in 68.8% of areas after droughts, particularly in dry environments, whereas 20.3% of areas with increased resilience were located in moist tropical forests. More intense and prolonged droughts led to a pronounced decline in resilience. Mean annual precipitation was identified as the most important regulator influencing resilience changes after drought, while soil phosphorus was the most consistent regulator across forest biomes, exhibiting widespread mitigating effects on resilience loss. Along decreasing precipitation gradients, the mitigating effect of soil phosphorus on post-drought resilience loss intensified. These findings provide insights into how tropical forests respond to drought and offer practical guidance for region-specific, adaptive forest management under a changing climate. Drought disturbances are reducing the recovery capacity of tropical forests, especially in drier conditions, but soil phosphorus can mitigate this impact, according to a satellite-based analysis of ecosystem resilience.

3. 图表

4. 引用

@article{chu2026,
  author = {Yang Chu and Yuhao Feng and Yanjun Su and Chao Wu and Ying-Ping Wang and Tingting Li and Lanlan Guo and Ziqian Zhong and Tiewei Li and Hongtao Xu and Guoyan Yang and Huan Zheng and Xiangqi He and Haoxiang Zhao and Chengcheng Huang and Yiyang Gao and Shiyu Yao and Bin He},
  title = {Precipitation and soil phosphorus regulate post-drought resilience in tropical forests},
  journal = {Nature Geoscience},
  year = {2026},
  volume = {19},
  number = {10},
  pages = {1241-1247},
  doi = {10.1038/s41561-026-02095-x},
  publisher = {Springer Science and Business Media LLC},
}