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	蒙古高原NDVI的空间格局及分异
其他题名	NDVI spatial pattern and its differentiation on the Mongolian Plateau
	张雪艳; 胡云锋; 庄大方; 齐永清; 马欣
ISSN	1009-637X
出版年	2009
卷号	19 期号:4 页码:403-415
英文摘要	GIMMS NDVI database and geo-statistics were used to depict the spatial distribution and temporal stability of NDVI on the Mongolian Plateau. The results demonstrated that: (1) Regions of interest with high NDVI indices were distributed primarily in forested mountainous regions of the east and the north, areas with low NDVI indices were primarily distributed in the Gobi desert regions of the west and the southwest, and areas with moderate NDVI values were mainly distributed in a middle steppe strap from northwest to southeast. (2) The maximum NDVI values maintained for the past 22 years showed little variation. The average NDVI variance coefficient for the 22-year period was 15.2%. (3) NDVI distribution and vegetation cover showed spatial autocorrelations on a global scale. NDVI patterns from the vegetation cover also demonstrated anisotropy; a higher positive spatial correlation was indicated in a NW-SE direction, which suggested that vegetation cover in a NW-SE direction maintained increased integrity, and vegetation assemblage was mainly distributed in the same specific direction. (4) The NDVl spatial distribution was mainly controlled by structural factors, 88.7% of the total spatial variation was influenced by structural and 11.3% by random factors. And the global autocorrelation distance was 1178 km, and the average vegetation patch length (NW-SE) to width (NE-SW) ratio was approximately 2.4:1.0.
英文关键词	GIMMS NDVI spatial pattern spatial differentiation spatial statistics Mongolian Plateau
语种	英语
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:3570047
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223258
作者单位	Institute of Geographic Sciences and Natural Resources Research,CAS, Beijing 100101, China
推荐引用方式 GB/T 7714	张雪艳,胡云锋,庄大方,等. 蒙古高原NDVI的空间格局及分异[J],2009,19(4):403-415.
APA	张雪艳,胡云锋,庄大方,齐永清,&马欣.(2009).蒙古高原NDVI的空间格局及分异.,19(4),403-415.
MLA	张雪艳,et al."蒙古高原NDVI的空间格局及分异".19.4(2009):403-415.