皇甫川流域土地利用/覆盖变化对生态服务价值的影响

IMPACTS OF LAND USE AND COVER CHANGE ON ECOSYSTEM SERVICE VALUES IN HUANGFUCHUAN WATERSHED

分析了皇甫川地区近20年来土地利用覆盖、格局的变化情况,并采用价值量评价法,主要参考国内学者的研究成果,提出适合于我国皇甫川流域的生态服务价值体系,分析皇甫川地区的生态系统服务价值变化情况.研究结果表明:土地利用变化在数量及时间上变化明显,1987—2007年间皇甫川流域土地利用变化巨大,林地和耕地有所增加,草地大幅减少,代之以城镇用地、农村建设用地,水域面积急剧减少.皇甫川流域生态服务价值1987—2000年变化的幅度明显小于2000—2007年的变化幅度,1987—2007年间研究区生态服务价值呈减少的趋势.

Because of contribution and response of Land Use and Cover Change （LUCC） to global change, it is necessary to analyze mechanisms of LUCC. Human activities in land use impact the ecosystem, thus affect the value of ecosystem service （VES）. In this article, we analyze LUCC, pattern of land use and cover and the VES of Huangfuchuan watershed in the last 20 years. Data show that： Lucc has changed greatly in Huangfuchuan watershed from 1987-2007. During this period, there was an increase in forestland, dramatic decrease in grassland and water field, and an increase in cropland, urban and rural settlements. The Ecosystem services value of the study area decreased during this period from 1987 and 2007.