摘要
目的借助于遥感资料和GIS方法,研究了近20a来艾比湖沿岸的生态环境质量演变,为研究该地区水土开发与生态环境演变提供了依据。方法在GIS/RS技术支持下获取基础数据,根据研究区的区域特点,将Costanza等人的研究与国内相关研究结合,建立价值模型对艾比湖沿岸的博乐、精河绿洲进行不同历史时段生态系统服务功能价值测评。根据生态系统服务功能价值与生态环境质量之间的正相关关系,从生态系统服务功能价值的角度对博乐、精河绿洲近20a生态环境质量的演变进行了分析。结果研究区生态系统服务功能价值呈下凹曲线变化趋势。结论博乐、精河绿洲近20a的生态环境演变基本上以1991年为界,前期呈现劣变,后期则渐趋好转。
Aim The area near Ebinur Lake has become one of the deteriorating area in the western China. His nacessarg to research the evolution of eco-environment in the past 20a in this area.Methods According to the ecological character of the research area, the research in China and the research of Costanza were combined to build the estimating mode. Based on the multi-temporal remotely sensed data of TM,Geographical Information System(GIS),and the estimating mode,the value of ecosystem services were estimated in Bole-Jinghe oasis of Ebinur basin. Based on the synchronizing relation between the value and eco-environment, in the opinion of ecosystem services,the evolution of eco-environment in Bole-Jinghe oasis of Ebinur basin from 1979 to 1999 was analyzed.Results The trend of evolution of the value of ecosystem services was a sunken curve.Conclusion The trend of evolution of the eco-environment was that 1991 was the round turning point, and it was deteriorating from 1979 to 1991 and straightening up from 1991 to 1999.
出处
《西北大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第3期355-358,共4页
Journal of Northwest University（Natural Science Edition）
基金
国家重点基础研究发展规划基金资助项目(G19990435)
