摘要
依据疏勒河中下游地区1985、2000和2010年的土地利用数据,从生态系统服务功能的角度,运用Costanza的方法,结合谢高地等修正的我国生态服务价值当量因子表,分析了该地区土地利用/覆被变化的生态效益。结果表明:研究区内土地利用强度在迅速增加,受其影响,生态服务总价值呈缓慢增长态势,从1985-2010年只增加0.02亿元,部分地区由于土地生态超载,土地过度利用的生态效应已经凸显;草地在研究区内生态系统起着相当重要的作用,并且耕地、林地和草地的面积变化对研究区内的各项生态服务价值的变化有着较大影响;通过敏感度分析表明,研究区生态服务价值对生态服务价值系数的变化是缺乏弹性的,因此结果是可信的。
Based on land use data of the middle and lower reaches of Shule River in Western China in 1985,2000 and 2010,we analyzed the eco-efficiency of land use/cover change in study area from the view of the ecosystem service function according to Costanza＇s method and equivalent factor table of ecological service value modified by Gao-di Xie et al.The results were as follows： with land use intensity increasing rapidly,the total value of ecosystem services was slow growing,only 0.02 million yuan from 1985 to 2010,and the ecological effect of excessive use of land had been highlighted in some area because of land ecological overload.Grass played an important role in the ecosystem of study area.The changes of arable land,grassland and forest had a greater impact on the value of ecosystem services in the study area.Coefficient of sensitivity analysis showed that the ecological service value was not sensitive to the change of ecological service value coefficient in study area.So the result was credible.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2013年第3期80-85,共6页
Journal of Arid Land Resources and Environment
基金
国家自然科学基金项目(40961038)
生态经济学省级重点学科(5001-21)
西北师范大学知识与科技创新工程项目(NWNU-KJCXGC-03-66)共同资助
关键词
生态服务价值
疏勒河中下游地区
土地利用强度
敏感度分析
ecosystem services value
middle and lower reaches of Shule River
land use intensity
sensitivity analysis
