Increased Sensitivity of Alpine Grasslands to Climate Change on the Tibetan Plateau
文献类型：期刊论文
| 作者 | Xu, Zhuanjia1; Li, Lanhui1,2; Zhang, Binghua2; Fu, Shuimei1; Liu, Wei1; Luo, Yanran1; Li, Hui1; Zhu, Xiaoling1; Deng, Fuliang1 |
| 刊名 | LAND
 |
| 出版日期 | 2026-01-26 |
| 卷号 | 15期号:2页码:215 |
| 关键词 | Tibetan Plateau Vegetation Sensitivity Index elevation gradient climate change machine learning |
| DOI | 10.3390/land15020215 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Accurately quantifying the sensitivity of alpine vegetation to climate change is a key prerequisite for formulating regional climate change adaptation policies. The sensitivity of the fragile alpine grasslands on the Tibetan Plateau to climate change has received widespread attention. However, the spatiotemporal dynamics and driving mechanisms of this sensitivity are still unclear under continuous warming and wetting. This study, based on MODIS_NDVI and meteorological data from 2000 to 2023, constructed a dynamic Vegetation Sensitivity Index (VSI) framework and integrated Random Forest (RF) and eXtreme Gradient Boosting (XGBoost) models with Shapley Additive exPlanations (SHAP) attribution analysis to reveal the spatiotemporal evolution characteristics and driving mechanisms of vegetation sensitivity on the Tibetan Plateau. The results show that (1) the VSI of alpine grasslands exhibited a spatial pattern of higher values in the southwest and lower values in the northeast, with an overall upward trend. Specifically, 56.31% of the region showed an increase in the VSI, with the upward trend being more pronounced in the northern plateau. (2) The dominant role of different climate factors varied regionally; vegetation sensitivity to precipitation increased in the northern plateau, and temperature sensitivity decreased in the central plateau, while sensitivity to solar radiation significantly increased in the central plateau. (3) SHAP attribution analysis indicated that elevation was the core factor driving VSI differentiation, showing a higher sensitivity at higher elevations, with lower growth rates. These findings reveal the dynamic evolution of vegetation sensitivity under the warming and wetting climate trend and its elevation-regulated mechanism, providing important scientific insights for regional ecological adaptation management. |
| URL标识 | 查看原文 |
| WOS关键词 | TEMPERATURE ; ELEVATION ; MOISTURE ; PLANTS |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001701517200001 |
| 出版者 | MDPI |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221357]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Li, Lanhui |
| 作者单位 | 1.Xiamen Univ Technol, Sch Comp & Informat Engn, Xiamen 361024, Peoples R China; 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Zhuanjia,Li, Lanhui,Zhang, Binghua,et al. Increased Sensitivity of Alpine Grasslands to Climate Change on the Tibetan Plateau[J]. LAND,2026,15(2):215. |
| APA | Xu, Zhuanjia.,Li, Lanhui.,Zhang, Binghua.,Fu, Shuimei.,Liu, Wei.,...&Deng, Fuliang.(2026).Increased Sensitivity of Alpine Grasslands to Climate Change on the Tibetan Plateau.LAND,15(2),215. |
| MLA | Xu, Zhuanjia,et al."Increased Sensitivity of Alpine Grasslands to Climate Change on the Tibetan Plateau".LAND 15.2(2026):215. |
入库方式： OAI收割
来源：地理科学与资源研究所
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