标题：Improvement in vegetation ecological quality and its driving factors in China over 2001–2024

作者：Mengyang Xu, Xiaoxiao Li, Shasha Fan, Feilong Shen, Chong Yao, Zhongdian Zhang , Ju Wang, Xingguo Zhang

来源出版物：Environmental Research

DOI：10.1016/j.envres.2026.124151

出版年：2026

文献类型：Article

语种：英文

摘要：Against the backdrop of China's ecological civilization and carbon-neutrality goals, it is essential to clarify how vegetation ecological quality index (EQI) has changed and what drives it. Based on remote sensing products, this study reveals that China's EQI increased significantly at a rate of 0.106 yr⁻¹ during 2001–2024, corresponding to an overall increase of approximately 9%. Unlike previous studies that focused on normalized difference vegetation index or net primary productivity and considered only climate and land use change, this study explicitly incorporates atmospheric CO₂ and nitrogen deposition into a nationwide attribution framework for EQI. Human activities explain 50.1% of EQI changes, while environmental factors collectively contribute 49.9%, dominated by atmospheric CO₂ growth (42.8%), with smaller contributions from nitrogen deposition (4.5%) and climate change (2.7%). Overall, China's EQI has significantly improved over the past two decades, primarily driven by vegetation restoration associated with ecological projects and increasing atmospheric CO₂ concentration. Spatially, improvements were most pronounced in western and northern China, while parts of the southeastern coast and high-elevation alpine regions exhibited stagnation or degradation. This study provides new attribution evidence for evaluating the effectiveness of ecological projects and formulating regionally differentiated ecological management and climate adaptation strategies.

影响因子：7.7

论文链接：https://doi.org/10.1016/j.envres.2026.124151

（WilliamHILL中国 刘媛心/撰稿 崔向超/初审 闫军辉/复审 韩勇/终审）