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Moisture-induced greening of the South Asia over the past three decades

文献类型：期刊论文

作者Wang, T; Wang, XY (Wang, Xiaoyi)1; Wang, T (Wang, Tao)1,2; Liu, D (Liu, Dan)1; Guo, H (Guo, Hui)1; Huang, HB (Huang, Huabing)3; Zhao, YT (Zhao, Yutong)1
刊名GLOBAL CHANGE BIOLOGY
出版日期2017
卷号23期号:11页码:4995-5005
关键词Net Primary Production Climate-change Summer Monsoon Interannual Variability Vegetation Dynamics Atmospheric Demand Canopy Structure Soil-moisture Land-surface Rain-forest
DOI10.1111/gcb.13762
文献子类Article
英文摘要South Asia experienced a weakening of summer monsoon circulation in the past several decades, resulting in rainfall decline in wet regions. In comparison with other tropical ecosystems, quantitative assessments of the extent and triggers of vegetation change are lacking in assessing climate-change impacts over South Asia dominated by crops. Here, we use satellite-based Normalized Difference Vegetation Index (NDVI) to quantify spatial-temporal changes in vegetation greenness, and find a widespread annual greening trend that stands in contrast to the weakening of summer monsoon circulation particularly over the last decade. We further show that moisture supply is the primary factor limiting vegetation activity during dry season or in dry region, and cloud cover or temperature would become increasingly important in wet region. Enhanced moisture conditions over dry region, coinciding with the decline in monsoon, are mainly responsible for the widespread greening trend. This result thereby cautions the use of a unified monsoon index to predict South Asia's vegetation dynamics. Current climate-carbon models in general correctly reproduce the dominant control of moisture in the temporal characteristics of vegetation productivity. But the model ensemble cannot exactly reproduce the spatial pattern of satellite-based vegetation change mainly because of biases in climate simulations. The moisture-induced greening over South Asia, which is likely to persist into the wetter future, has significant implications for regional carbon cycling and maintaining food security.
学科主题普通生物学
WOS研究方向Biodiversity & Conservation; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000412322700045
源URL[http://ir.itpcas.ac.cn/handle/131C11/7959]  
专题青藏高原研究所_图书馆
通讯作者Wang, T
作者单位1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing, Peoples R China.
2.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China.
3.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing, Peoples R China.
推荐引用方式
GB/T 7714		 Wang, T,Wang, XY ,Wang, T ,et al. Moisture-induced greening of the South Asia over the past three decades[J]. GLOBAL CHANGE BIOLOGY,2017,23(11):4995-5005.
APA Wang, T.,Wang, XY .,Wang, T .,Liu, D .,Guo, H .,...&Zhao, YT .(2017).Moisture-induced greening of the South Asia over the past three decades.GLOBAL CHANGE BIOLOGY,23(11),4995-5005.
MLA Wang, T,et al."Moisture-induced greening of the South Asia over the past three decades".GLOBAL CHANGE BIOLOGY 23.11(2017):4995-5005.

入库方式： OAI收割

来源：青藏高原研究所

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