论文--中国科学院地理科学与资源研究所

论文

论文题目：	Diverse responses of gross primary production and leaf area index to drought on the Mongolian Plateau
第一作者：	Bai Yu, Liu Menghang, Guo Qun, Wu Genan etc.
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发表年度：	2023
摘　　要：	Drought is a crucial factor regulating vegetation growth on the Mongolian Plateau (MP). Previous studies of drought effects on the MP have mainly concentrated on drought characterization, while the response of vege-tation to drought remains unclear. To close this knowledge gap, we examined the response of MP vegetation to drought in terms of gross primary production (GPP) and leaf area index (LAI) from 1982 to 2018. Our findings show that intra-seasonally the frequency of drought occurrence in autumn had a greater impact on GPP (relative importance over 70 %), while the intensity of drought was more influential for LAI (relative importance approximately 60 %). Inter-seasonally, summer droughts had the most pronounced effect on vegetation (with median standardized anomalies of-0.72 for GPP and-0.4 for LAI, respectively). Additionally, we found that meteorological drought was more consistent with atmospheric aridity (high vapor pressure deficit) than soil drought (low soil moisture). This study advances knowledge of vegetation's susceptibility to climate extremes and improves the precision of predicting ecosystem response to climate change.
英文摘要：
刊物名称：	SCIENCE OF THE TOTAL ENVIRONMENT
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论文类别：	SCI