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Autumn NDVI contributes more and more to vegetation improvement in the growing season across the Tibetan Plateau
Du, Jiaqiang1; He, Ping1; Fang, Shifeng2; Liu, Weiling1; Yuan, Xinjie3; Yin, Junqi3
2017
Source PublicationINTERNATIONAL JOURNAL OF DIGITAL EARTH
ISSN1753-8947
Volume10Issue:11Pages:1098-1117
Corresponding AuthorYin, Junqi(xj_yinjunqi@163.com)
AbstractDetecting changes in vegetation, distinguishing the persistence of changes, and seeking their causes during multiple periods are important to gaining a deeper understanding of vegetation dynamics. Using the Global Inventory Modeling and Mapping Studies Normalized Difference Vegetation Index (NDVI) version NDVI3g dataset in the Tibetan Plateau, the trends in the seasonal components of NDVI and their linkage with climatic factors were analyzed over 14 asymptotic periods of 18-31 years since 1982. Dynamic trends in vegetation experienced an obvious increase at regional scale, but the increases of vegetation activity mostly tended to stall or slow down as the studied time period was extended. At pixel scale, areas with significant browning significantly expanded over 14 periods for all seasons, but for significant greening significantly increased only in autumn. The changes of vegetation activity in spring were the most drastic among three seasons. Increased increments of NDVI in summer, spring, and autumn took turns being the main reason for the enhanced vegetation activity in the growing season in the nested 14 periods. Vegetation activity was mainly regulated by a thermal factor, and the dominant climatic drivers of vegetation growth varied across different seasons and regions. We speculate that the increase of NDVI will continue but the increments will decline in all seasons except autumn.
KeywordContributions of seasonal NDVI changes GIMMS NDVI3g multiple spatial scales response to climate change
DOI10.1080/17538947.2017.1282547
WOS KeywordTIME-SERIES ; TREND ANALYSIS ; LAST DECADE ; CLIMATE ; GROWTH ; GIMMS ; EARTH ; REGION ; CHINA ; TEMPERATURE
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Plan of China[2016YFC0500401-5] ; National Natural Science Foundation of China[41001055]
Funding OrganizationNational Key Research and Development Plan of China ; National Natural Science Foundation of China
WOS Research AreaPhysical Geography ; Remote Sensing
WOS SubjectGeography, Physical ; Remote Sensing
WOS IDWOS:000418758100002
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/60878
Collection中国科学院地理科学与资源研究所
Corresponding AuthorYin, Junqi
Affiliation1.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing, Peoples R China
3.Xinjiang Acad Environm Protect Sci, Xinjiang 830011, Peoples R China
Recommended Citation
GB/T 7714
Du, Jiaqiang,He, Ping,Fang, Shifeng,et al. Autumn NDVI contributes more and more to vegetation improvement in the growing season across the Tibetan Plateau[J]. INTERNATIONAL JOURNAL OF DIGITAL EARTH,2017,10(11):1098-1117.
APA Du, Jiaqiang,He, Ping,Fang, Shifeng,Liu, Weiling,Yuan, Xinjie,&Yin, Junqi.(2017).Autumn NDVI contributes more and more to vegetation improvement in the growing season across the Tibetan Plateau.INTERNATIONAL JOURNAL OF DIGITAL EARTH,10(11),1098-1117.
MLA Du, Jiaqiang,et al."Autumn NDVI contributes more and more to vegetation improvement in the growing season across the Tibetan Plateau".INTERNATIONAL JOURNAL OF DIGITAL EARTH 10.11(2017):1098-1117.
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