Response of vegetation to drought in the Tibetan Plateau: Elevation differentiation and the dominant factors
文献类型：期刊论文
| 作者 | Wang, Yijia; Fu, Bojie ; Liu, Yanxu; Li, Yan; Feng, Xiaoming; Wang, Shuai
|
| 刊名 | AGRICULTURAL AND FOREST METEOROLOGY
 |
| 出版日期 | 2021-08-15 |
| 卷号 | 306页码:- |
| 关键词 | Response time Vegetation indexes Elevation Tibetan Plateau Control factor |
| ISSN号 | 0168-1923 |
| 英文摘要 | With a typical alpine grassland ecosystem, the Tibetan Plateau (TP) is a highly representative region to observe the effects of climate change on ecosystems. Continued global warming has increased the drought risk of TP, yet the response of vegetation to drought remains unclear. To understand the spatial heterogeneity of the vegetation response to drought and identify the key control factors of vegetation response to drought in different elevation intervals on TP, we introduced three vegetation indexes (EVI, LAI, and GPP) and multi-scale drought indexes, including the Standardized Precipitation Index (SPI) and Standardized Precipitation-Evapotranspiration Index (SPEI), to determine the spatial response of vegetation growth to drought from 2000 to 2015. Land surface temperature (LST), land cover, snow cover, population density, and soil texture were selected as potential control factors. The mean values of the maximum correlation coefficients for the six combinations indicated that 14.3%/12.0% (SPI/SPEI) of the vegetation growth on TP was significantly affected by water conditions (p < 0.05). The extent of vegetation growth responses to drought were mainly influenced by LST with the highest contribution rate of 65.8% at 3000-4500 m intervals. The response time is mainly dependent on the proportion of grassland, with the highest contribution rate of 81.7% at 4500-6000 m intervals. The results provide reasonable evidence for understanding the spatial heterogeneity of the elevation dependence of the alpine ecosystem response to drought. |
| WOS研究方向 | Agronomy ; Forestry ; Meteorology & Atmospheric Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45553]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 2.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yijia,Fu, Bojie,Liu, Yanxu,et al. Response of vegetation to drought in the Tibetan Plateau: Elevation differentiation and the dominant factors[J]. AGRICULTURAL AND FOREST METEOROLOGY,2021,306:-. |
| APA | Wang, Yijia,Fu, Bojie,Liu, Yanxu,Li, Yan,Feng, Xiaoming,&Wang, Shuai.(2021).Response of vegetation to drought in the Tibetan Plateau: Elevation differentiation and the dominant factors.AGRICULTURAL AND FOREST METEOROLOGY,306,-. |
| MLA | Wang, Yijia,et al."Response of vegetation to drought in the Tibetan Plateau: Elevation differentiation and the dominant factors".AGRICULTURAL AND FOREST METEOROLOGY 306(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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