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	Trade-offs among ecosystem services in a typical karst watershed, sw china
	Tian, Yichao1,2,3; Wang, Shijie1,3; Bai, Xiaoyong1,3; Luo, Guangjie1,3; Xu, Yan1,3
刊名	Science of the total environment
	2016-10-01
卷号	566页码:1297-1308
关键词	Swat Land use Casa Soil erosion Trade-offs Hydrological process
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2016.05.190
通讯作者	Bai, xiaoyong(baixiaoyong@126.com)
英文摘要	Nowadays, most research results on ecosystem services in karst areas are limited to a single function of an ecosystem service. few scholars conduct a comparative study on the mutual relationships among ecosystem services, let alone reveal the trade-off and synergic relationships in typical karst watershed. this research aims to understand and quantitatively evaluate the relationships among ecosystem services in a typical karst watershed, broaden the depth and width of trade-off and synergic relationships in ecosystem services and explore a set of technical processes involved in these relationships. with the shibantang karst watershed in china as the research site, we explore the trade-off and synergic relationships of net primary productivity (npp), water yield, and sediment yield by coupling soil and water assessment tool (swat) and carnegie-ames-stanford approach (casa), and simulating and evaluating these three ecosystem services between 2000 and 2010. results of this study are as follows. (1) the annual average water yield decreased from 528 mm in 2000 to 513 mm in 2010, decreasing by 2.84%. (2) the annual average sediment yield decreased from 26.15 t/ha in 2000 to 23.81 t/ha in 2010, with an average annual reduction of 0.23 t/ha. (3) the annual average npp increased from 739.38 g cm-2 a(-1) in 2000 to 746.25 g cm-2 a(-1) in 2010, increasing by 6.87 g cm-2 a(-1). (4) water yield and sediment yield are in a synergic relationship. the increase of water yield can accumulate the soil erosion amount. npp is in a trade-off relationship with water yield and sediment yield. the improvement of npp is good for decreasing water yield and soil erosion amount and increasing soil conservation amount. this study provides policy makers and planners an approach to develop an integrated model, as well as design mapping and monitoring protocols for land use change and ecosystem service assessments. (c) 2016 elsevier b.v. all rights reserved.
WOS关键词	NET PRIMARY PRODUCTION ; LAND-USE ; CLIMATE-CHANGE ; ECOLOGICAL RESTORATION ; ROCKY DESERTIFICATION ; YANGTZE-RIVER ; CONSERVATION ; IMPACTS ; AREA ; NPP
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000381060900124
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2374458
专题	中国科学院大学
通讯作者	Bai, Xiaoyong
作者单位	1.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, 46 Guanshui Rd, Guiyang 550002, Guizhou, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Puding Karst Ecosyst Observat & Res Stn, Anshun 561000, Guizhou, Peoples R China
推荐引用方式 GB/T 7714	Tian, Yichao,Wang, Shijie,Bai, Xiaoyong,et al. Trade-offs among ecosystem services in a typical karst watershed, sw china[J]. Science of the total environment,2016,566:1297-1308.
APA	Tian, Yichao,Wang, Shijie,Bai, Xiaoyong,Luo, Guangjie,&Xu, Yan.(2016).Trade-offs among ecosystem services in a typical karst watershed, sw china.Science of the total environment,566,1297-1308.
MLA	Tian, Yichao,et al."Trade-offs among ecosystem services in a typical karst watershed, sw china".Science of the total environment 566(2016):1297-1308.

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