Increasing precipitation promoted vegetation growth in the Mongolian Plateau during 2001-2018

文献类型： 外文期刊

第一作者： Li, Chuanhua

作者： Li, Chuanhua;Li, Liangliang;Wei, Yufei;Liu, Yunfan;Peng, Lixiao;Chen, Jiahao;Li, Chuanhua;Tsunekawa, Atsushi;Li, Liangliang;Wu, Xiaodong;Bai, Keyu;Bai, Keyu

作者机构：

关键词： carbon dioxide concentration; climate change; gross primary production; leaf area index; land cover type; arid regions

期刊名称：FRONTIERS IN ENVIRONMENTAL SCIENCE （ 影响因子：4.6； 五年影响因子：5.3 ）

ISSN：

年卷期： 2023 年 11 卷

页码：

收录情况： SCI

摘要： Taking the Mongolian Plateau as the research area, this paper studied the vegetation growth from 2001 to 2018. We quantified the vegetation growth changes based on changes in gross primary productivity (GPP) and leaf area index (LAI) and their relationships to climate variables using correlation analysis, partial correlation analysis and multiple correlation analysis. The results showed that from 2001 to 2018 both GPP and LAI showed an increasing trend, with great heterogeneities among different areas and land cover types. The largest increase of GPP and LAI occurred in the northeast plateau with the land cover types of forest and cropland. The main driving factor of vegetation growth was precipitation, while temperature was significantly negatively correlated with vegetation growth. The CO2 concentration had a significant impact on the GPP in farmland, and the increase of solar radiation had a significant impact on tundra. Our study highlights the importance of precipitation in regulating vegetation growth in the Mongolian Plateau, challenging the prevailing views that the temperature dominates the vegetation growth in the northern ecosystems.

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