基于土地利用的甘州区生态系统服务价值研究  

Study of Ecosystem Service Values Based on Land Use Change of Ganzhou District

作　　者：杨云松[1,2] 

机构地区：[1]河南理工大学经济管理学院,河南焦作454003 [2]河南理工大学河南省中国特色社会主义理论体系研究中心,河南焦作454003

出　　处：《水土保持研究》2015年第5期163-168,共6页Research of Soil and Water Conservation

基　　金：河南省教育厅人文社会科学研究项目"面向可持续发展的河南省区域用水总量控制及风险研究"(2015-ZD-032)

摘　　要：以张掖市甘州区为研究对象,采用1987年、2000年、2009年3期土地利用数据,分析了甘州区1987—2009年在土地利用/覆盖变化驱动下的生态系统服务价值变化。研究表明:(1)甘州区农田和居民工矿用地一直处于增加趋势,林地和草地先减少后增加,水域处于减少状态;(2)甘州区生态系统服务价值呈现先降后升的"V"字形变化,1987年、2000年和2009年3个年份分别是25.2,19.53,20.21亿元;在不同生态系统类型中,农田、草地、水域提供的生态功能服务价值达到总价值的80%以上,在生态系统服务价值构成中占有重要地位;(3)生态系统单项服务功能价值中,水源涵养和废物处理的生态功能服务价值较高,二者之和占总价值的近40%;(4)各土地利用类型生态系统服务价值敏感性指数都小于1,表明甘州区生态系统服务价值缺乏弹性,研究结果可信;(5)从表面看,生态系统服务价值的变化直接源于土地利用的变化。实质上,在土地利用变化的背后隐含着不同时期人类活动强度和政府政策导向的间接驱动。Ganzhou District was taken as the study case. The ecosystem service value changes from 1987 to 2009 under the land use/cover change in Ganzhou District were analyzed. The results showed that： （1）farming and urban land use had an increasing tendency, the ecosystem service value of forestland and grassland fluctuated, first decreased and then increased, water area decreased; （2） the ecosystem service value showed the change of ＇V＇ shape, first came down and then rose, which were 25.2, 19.53 and 20.21 billion Yuan in 1987, 2000 and 2009, respectively. In different ecosystems, the ecosystem service values of grassland, farming and water accounted for 80% proportion in the ecosystem service value constitution; （3） among the contributions of various ecosystem functions to the ecosystem service value, the value of water conservation and waste disposal was the higher, which accounted for 40% of the total ecosystem service value; （4）the ecosystem service value sensitivity index of each land use type was less than 1, indicating that the ecosystem service value of Ganzhou District lacked flexibility, the results were credible; （5） ostensibly, the ecosystem service value changes directly originated from the land use/cover change, essentially, human activity intensity and the government policy guidance in different periods were the indirect-driving factors for the land use/cover change.

关 键 词：土地利用/覆盖变化 生态系统服务价值 敏感性分析 甘州区 

分 类 号：X171.1[环境科学与工程—环境科学] F301.24[经济管理—产业经济]