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	Variation in vegetation greenness in spring across eastern China during 1982-2006
	Zhang Xuezhen; Dai Junhu; Ge Quansheng
来源期刊	Journal of Geographical Sciences
ISSN	1009-637X
出版年	2013
卷号	23 期号:1 页码:45-56
英文摘要	Vegetation greenness is a key indicator of terrestrial vegetation activity. To understand the variation in vegetation activity in spring across eastern China (EC), we analysed the variation in the Normalised Difference Vegetation Index (NDVI) from April to May during 1982-2006. The regional mean NDVI across EC increased at the rate of 0.02/10yr (r~2=0.28; p=0.024) prior to 1998; the increase ceased, and the NDVI dropped to a low level thereafter. However, the processes of variation in the NDVI were different from one region to another. In the North China Plain, a cultivated area, the NDVI increased (0.03/10yr; r~2=0.52; p<0.001) from 1982 to 2006. In contrast, the NDVI decreased (-0.02/10yr; r~2=0.24; p=0.014) consecutively from 1982 to 2006 in the Yangtze River and Pearl River deltas, two regions of rapid urbanisation. In the eastern region of the Inner Mongolian Plateau and the lower reaches of the Yangtze River in East China, the NDVI increased prior to 1998 and decreased thereafter. In the Hulun Buir area and the southern part of the Yangtze River Basin, the NDVI increased prior to 1998 and remained static thereafter. The NDVI in the grasslands and croplands in the semi-humid and semi-arid areas showed a significant positive correlation with precipitation, while the NDVI in the woodlands in the humid to semi-humid areas showed a significant positive correlation with temperature. As much as 60% of the variation in the NDVI was explained by either precipitation or temperature.
英文关键词	eastern China spring vegetation activities NDVI spatial heterogeneity
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:4733895
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335186
作者单位	Zhang Xuezhen, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China.; Dai Junhu, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China.; Ge Quansheng, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China.
推荐引用方式 GB/T 7714	Zhang Xuezhen,Dai Junhu,Ge Quansheng. Variation in vegetation greenness in spring across eastern China during 1982-2006[J],2013,23(1):45-56.
APA	Zhang Xuezhen,Dai Junhu,&Ge Quansheng.(2013).Variation in vegetation greenness in spring across eastern China during 1982-2006.Journal of Geographical Sciences,23(1),45-56.
MLA	Zhang Xuezhen,et al."Variation in vegetation greenness in spring across eastern China during 1982-2006".Journal of Geographical Sciences 23.1(2013):45-56.