干旱区生态环境知识资源中心(Arid): Satellite-based Studies on Large-Scale Vegetation Changes in China

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	Satellite-based Studies on Large-Scale Vegetation Changes in China
	Zhao Xia; Zhou Daojing; Fang Jingyun
来源期刊	Journal of Integrative Plant Biology
ISSN	1672-9072
出版年	2012
卷号	54 期号:10 页码:713-728
英文摘要	Remotely-sensed vegetation indices, which indicate the density and photosynthetic capacity of vegetation, have been widely used to monitor vegetation dynamics over broad areas. In this paper, we reviewed satellite-based studies on vegetation cover changes, biomass and productivity variations,phenological dynamics, desertification, and grassland degradation in China that occurred over the past 2-3 decades. Our review shows that the satellite-derived index (Normalized Difference Vegetation Index, NDVI) during growing season and the vegetation net primary productivity in major terrestrial ecosystems (for example forests,grasslands, shrubs,and croplands) have significantly increased, while the number of fresh lakes and vegetation coverage in urban regions have experienced a substantial decline. The start of the growing season continually advanced in China's temperate regions until the 1990s, with a large spatial heterogeneity. We also found that the coverage of sparsely-vegetated areas declined, and the NDVI per unit in vegetated areas increased in arid and semi-arid regions because of increased vegetation activity in grassland and oasis areas. However, these results depend strongly not only on the periods chosen for investigation, but also on factors such as data sources, changes in detection methods, and geospatial heterogeneity. Therefore, we should be cautious when applying remote sensing techniques to monitor vegetation structures, functions, and changes.
英文关键词	Normalized Difference Vegetation Index (NDVI) phenology remote sensing vegetation coverage vegetation degradation vegetation productivity
类型	Review
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:4685218
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335173
作者单位	Zhao Xia, Institute of Botany, the Chinese Academy of Sciences, State Key Laboratory of Vegetation and Environmental Change, Beijing 100093, China.; Zhou Daojing, Department of Ecology, College of Environmental Sciences, Peking University, Key Laboratory of Earth Surface Processes of the Ministry of Education, Beijing 100871, China.; Fang Jingyun, Institute of Botany, the Chinese Academy of Sciences, State Key Laboratory of Vegetation and Environmental Change;;Key Laboratory of Earth Surface Processes of the Ministry of Education, Beijing 100093, China.
推荐引用方式 GB/T 7714	Zhao Xia,Zhou Daojing,Fang Jingyun. Satellite-based Studies on Large-Scale Vegetation Changes in China[J],2012,54(10):713-728.
APA	Zhao Xia,Zhou Daojing,&Fang Jingyun.(2012).Satellite-based Studies on Large-Scale Vegetation Changes in China.Journal of Integrative Plant Biology,54(10),713-728.
MLA	Zhao Xia,et al."Satellite-based Studies on Large-Scale Vegetation Changes in China".Journal of Integrative Plant Biology 54.10(2012):713-728.