IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Spatial-Temporal NDVI Variation of Different Alpine Grassland Classes and Groups in Northern Tibet from 2000 to 2013
Zhang, Xiaoke1,2; Lu, Xuyang1; Wang, Xiaodan1,3
Corresponding AuthorLu, Xuyang
2015
Source PublicationMOUNTAIN RESEARCH AND DEVELOPMENT
ISSN0276-4741
EISSN1994-7151
Volume35Issue:3Pages:254-263
SubtypeArticle
AbstractThe Normalized Difference Vegetation Index (NDVI) can usually be used as a good proxy for evaluating potential variability in regional ecosystems and under climate change. We used 16-day MODIS-NDVI composite satellite data with 250-m resolution for the period 2000 to 2013 to assess the temporal and spatial variation of the NDVI among different alpine grassland classes and groups in northern Tibet. The annual average NDVI of the whole alpine grassland area in northern Tibet generally increased slightly from 2000 to 2003, and the annual average NDVI values ranged from 0.112 to 0.492 across all alpine grassland groups and years. The NDVI clearly decreased from the southeastern to the northwestern areas, with 22.50% of total grasslands significantly having increased or decreased, while 77.50% presented little change during 2000-2013. Both temperature and precipitation were key factors that controlled the NDVI variations of the entire alpine grassland. However, for different alpine grassland classes and groups, the NDVI displayed different correlation patterns with temperature and precipitation. Our results demonstrate that the NDVI variations of alpine grassland generally increased slightly but differed among different classes and groups. Although temperature and precipitation were the driving forces influencing the NDVI of the entire alpine grassland, it was more difficult to define the driving forces for the individual classes and groups, and more detailed analyses covering prolonged observation periods are still needed.
KeywordNormalized Difference Vegetation Index (Ndvi) Alpine Grassland Precipitation Temperature Northern Tibet
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1659/MRD-JOURNAL-D-14-00110.1
URL查看原文
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Physical Geography
Indexed BySCI
WOS KeywordVEGETATION INDEX ; CLIMATE-CHANGE ; MODIS-NDVI ; TIME-SERIES ; PLATEAU ; PRECIPITATION ; VARIABILITY ; CHINA ; SHRUBLAND ; DYNAMICS
Language英语
Quartile4区
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WOS SubjectEnvironmental Sciences ; Geography, Physical
WOS IDWOS:000361557100005
Funding OrganizationNational Natural Science Foundation of China(41371267) ; Action-plan of the Chinese Academy of Sciences (CAS) for West Development(KZCX2-XB3-08) ; 135 Strategic Programs of the Institute of Mountain Hazards and Environment(sds-135-1203-03)
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10998
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecolog Regulat, Chengdu 610041, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Xainza Alpine Steppe & Wetland Ecosyst Observat &, Xainze 853100, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Xiaoke,Lu, Xuyang,Wang, Xiaodan. Spatial-Temporal NDVI Variation of Different Alpine Grassland Classes and Groups in Northern Tibet from 2000 to 2013[J]. MOUNTAIN RESEARCH AND DEVELOPMENT,2015,35(3):254-263.
APA Zhang, Xiaoke,Lu, Xuyang,&Wang, Xiaodan.(2015).Spatial-Temporal NDVI Variation of Different Alpine Grassland Classes and Groups in Northern Tibet from 2000 to 2013.MOUNTAIN RESEARCH AND DEVELOPMENT,35(3),254-263.
MLA Zhang, Xiaoke,et al."Spatial-Temporal NDVI Variation of Different Alpine Grassland Classes and Groups in Northern Tibet from 2000 to 2013".MOUNTAIN RESEARCH AND DEVELOPMENT 35.3(2015):254-263.
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