检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:陈强[1] 陈正江[1,2] 张兴国[1] 刘晓[1]
机构地区:[1]西北大学城市与资源学系 [2]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011
出 处:《西北大学学报(自然科学版)》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)
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.
分 类 号:X171.1[环境科学与工程—环境科学]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:18.188.103.74