气候变化领域集成服务门户(CCPortal): Extending the timescale and range of ecosystem services through paleoenvironmental analyses; exemplifiedin the lower Yangtze basin

CCPortal

DOI	10.1073/pnas.1118263109
	Extending the timescale and range of ecosystem services through paleoenvironmental analyses; exemplifiedin the lower Yangtze basin
	Dearing J.A.; Yang X.; Dong X.; Zhang E.; Chen X.; Langdon P.G.; Zhang K.; Zhang W.; Dawson T.P.
发表日期	2012
ISSN	0027-8424
起始页码	E1111
结束页码	E1120
卷号	109 期号:18
英文摘要	In China, and elsewhere, long-term economic development and poverty alleviation need to be balanced against the likelihood of ecological failure. Here, we show how paleoenvironmental records can provide important multidecadal perspectives on ecosystem services (ES). More than 50 different paleoenvironmental proxy records can be mapped to a wide range of ES categories and subcategories. Lake sediments are particularly suitable for reconstructing records of regulating services, such as soil stability, sediment regulation, and water purification, which are often less well monitored. We demonstrate the approach using proxy records from two sets of lake sediment sequences in the lower Yangtze basin covering the period 1800-2006, combined with recent socioeconomic and climate records. We aggregate the proxy records into a regional regulating services index to show that rapid economic growth and population increases since the 1950s are strongly coupled to environmental degradation. Agricultural intensification from the 1980s onward has been the main driver for reducing rural poverty but has led to an accelerated loss of regulating services. In the case of water purification, there is strong evidence that a threshold has been transgressed within the last two decades. The current steep trajectory of the regulating services index implies that regional land management practices across a large agricultural tract of eastern China are critically unsustainable.
语种	英语
scopus关键词	agricultural parameters; article; China; climate; climate change; ecosystem; paleoenvironment; poverty; priority journal; socioeconomics; Animals; Biodiversity; China; Conservation of Natural Resources; Ecosystem; Geologic Sediments; History, 19th Century; History, 20th Century; History, 21st Century; Humans; Lakes; Marine Biology; Time Factors
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159134
作者单位	Dearing, J.A., Palaeoecological Laboratory, Geography and Environment, University of Southampton, Southampton SO17 1BJ, United Kingdom; Yang, X., State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; Dong, X., State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; Zhang, E., State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; Chen, X., State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; Langdon, P.G., Palaeoecological Laboratory, Geography and Environment, University of Southampton, Southampton SO17 1BJ, United Kingdom; Zhang, K., Palaeoecological Laboratory, Geography and Environment, University of Southampton, South...
推荐引用方式 GB/T 7714	Dearing J.A.,Yang X.,Dong X.,et al. Extending the timescale and range of ecosystem services through paleoenvironmental analyses; exemplifiedin the lower Yangtze basin[J],2012,109(18).
APA	Dearing J.A..,Yang X..,Dong X..,Zhang E..,Chen X..,...&Dawson T.P..(2012).Extending the timescale and range of ecosystem services through paleoenvironmental analyses; exemplifiedin the lower Yangtze basin.Proceedings of the National Academy of Sciences of the United States of America,109(18).
MLA	Dearing J.A.,et al."Extending the timescale and range of ecosystem services through paleoenvironmental analyses; exemplifiedin the lower Yangtze basin".Proceedings of the National Academy of Sciences of the United States of America 109.18(2012).