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2000—2010年藏北申扎县植被NDVI时空变化与气候因子的关系
Alternative TitleThe Spatial and Temporal Variation of NDVI and Its Relationships to Climatic Factors in Northern Tibet over the Period of 2000—2010——Take Shantsa for Example
张晓克; 鲁旭阳; 王小丹
Corresponding Author王小丹
2014
Source Publication山地学报
Volume32Issue:4Pages:475-480
Other Abstract为揭示气候变化对申扎植被生态系统的影响,利用2000—2010年间的MODIS NDVI数据和对应的气候资料,研究了申扎县植被NDVI时空变化及其与气候因子的关系。结果表明,近10年来研究区生长季NDVI是减少趋势(p=0.069),其年均减少量和减少率分别为-0.0013和-0.55%/a。NDVI增加区域占申扎县总面积的32.78%,NDVI减少区域占总面积的67.22%。NDVI增加是高海拔的高山植被增加引起的,NDVI减少是高寒草原和高寒草甸的下降共同引起的。高寒草原比高寒草甸变化更敏感;温度升高导致的气候变暖变干可能是申扎县植被生长季NDVI减少的主要原因。; To reveal the effects of climate change on vegetation ecosystems, we used atime series (2000—2010) data set of Normalized Difference Vegetation Index (NDVI) together with historical climate data to analyze interannual variations of NDVI and explore the relationships between NDVI and climatic factors in Shantsa in this paper.The results showsthat NDVI decreased bya magnitude of -0.0013 and a ratio of -0.55%/a during the growing season(p=0.069) over recent decade.The NDVI increasing area accounts for a total area of 32.78%, while the NDVI decreasing area accounts for a total area of 67.22%in Shantsa. The NDVI increasing areais alpine vegetation, which is distributed inhigh altitude area. The NDVI decreasing areais alpine meadow and alpine steppe, the latter is more sensitive than the former. Increased temperature whichleads todrought climate may be the main reason for NDVI decreasing.
KeywordModis Ndvi 气候因子 相关分析
Indexed ByCSCD
Language中文
Funding Organization中国科学院战略性先导科技专项(XDB03030505);中国科学院西部行动计划(KZCX2-XB3-08)
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Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/7370
Collection山地表生过程与生态调控重点实验室
Recommended Citation
GB/T 7714
张晓克,鲁旭阳,王小丹. 2000—2010年藏北申扎县植被NDVI时空变化与气候因子的关系[J]. 山地学报,2014,32(4):475-480.
APA 张晓克,鲁旭阳,&王小丹.(2014).2000—2010年藏北申扎县植被NDVI时空变化与气候因子的关系.山地学报,32(4),475-480.
MLA 张晓克,et al."2000—2010年藏北申扎县植被NDVI时空变化与气候因子的关系".山地学报 32.4(2014):475-480.
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