a policy-driven large scale ecological restoration quantifying ecosystem services changes in the loess plateau of china一个策略驱动的大规模生态修复量化在中国的黄土高原生态系统服务变化.pdfVIP
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a policy-driven large scale ecological restoration quantifying ecosystem services changes in the loess plateau of china一个策略驱动的大规模生态修复量化在中国的黄土高原生态系统服务变化
A Policy-Driven Large Scale Ecological Restoration:
Quantifying Ecosystem Services Changes in the Loess
Plateau of China
¨ 1 1 1 2 1 1 3 2
Yihe Lu , Bojie Fu *, Xiaoming Feng , Yuan Zeng , Yu Liu , Ruiying Chang , Ge Sun , Bingfang Wu
1 State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China, 2 Institute of
Remote Sensing Applications, Chinese Academy of Sciences, Beijing, China, 3 USDA-Forest Service, Southern Research Station, Raleigh, North Carolina, United States of
America
Abstract
As one of the key tools for regulating human-ecosystem relations, environmental conservation policies can promote
ecological rehabilitation across a variety of spatiotemporal scales. However, quantifying the ecological effects of such
policies at the regional level is difficult. A case study was conducted at the regional level in the ecologically vulnerable
region of the Loess Plateau, China, through the use of several methods including the Universal Soil Loss Equation (USLE),
hydrological modeling and multivariate analysis. An assessment of the changes over the period of 2000–2008 in four key
ecosystem services was undertaken to determine the effects of the Chinese government’s ecological rehabilitation
initiatives implemented in 1999. These ecosystem services included water regulation, soil conservation, carbon
sequestration and grain production. Significant conversions of farmland to woodland and grassland were found to have
resulted in enhanced soil conservation and carbon sequestration, but decreased regional water yield u
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