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	Exploring spatiotemporal changes in ecosystem-service values and hotspots in China
	Li G. D.; Fang, C. L.; Wang, S. J.
	2016
关键词	Ecosystem-service values Change hotspots Ecological conservation programs Implementation effects land-use change cover urbanization conservation valuation imagery impact
英文摘要	Although ecosystems are valuable, they have been allowed to deteriorate globally in recent decades. However, the spatiotemporal changes in ecosystem-service values (ESVs) and their hotspots in China are not well understood. Here, long-term land-cover data, the spatial analysis method and an econometric analysis model were used to examine these changes. The results indicate that the total terrestrial ESV decreased from US$2398.31 billion in 1990 to US$2347.56 billion in 2010 (converted to 2009 dollar values), which provides strong evidence for the tendency of ecosystems in China to deteriorate over time, albeit slightly. Wealso found that the changes in ESVs had significant spatial heterogeneity. Our analysis showed that the relationship between ESV and gross domestic product (GDP) is generally negative, but this relationship is not always fixed. The Loess Plateau, Guizhou, Hubei, Henan and Xinjiang continually presented concentrated hotspot areas of ESV changes, whereas coastal regions continually presented concentrated cold-spot areas. Overlap analyses and logistic regressions demonstrate that national ecological programs have clear effects on the improvement of ecosystems but that the effectiveness of different policies varies on spatial and temporal scales. The results of this study will support more effective decision-making around the implementation of ecological conservation policies. (C) 2015 Elsevier B.V. All rights reserved.
出处	Science of the Total Environment
卷	545
页	609-620
语种	英语
ISSN号	0048-9697
DOI标识	10.1016/j.scitotenv.2015.12.067
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/43045]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Li G. D.,Fang, C. L.,Wang, S. J.. Exploring spatiotemporal changes in ecosystem-service values and hotspots in China. 2016.

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