摘要
广西是一个喀斯特特别发育的地区,水土流失严重,生态环境脆弱。本文兼顾多方面的原因,建立了脆弱生态环境指标体系,确定了脆弱生态环境定量评价的工作流程,包括数据库的建立、脆弱生态评价单元、评价指标及权重和评价方法的确定,借助地理信息系统(GIS)强大的输入、空间分析及制图功能,采用综合评价与聚类方法,对广西喀斯特脆弱生态环境进行了评价和分区,为生态环境建设提供科学依据。
Guangxi Zhuang Autonomous Region is a province of karst developing very widely and intensely, with intense soil erosion intensity and fragile eco-environment. Based on the extensive factors, this article set up an evaluating index system of fragile eco-environment and established the process of the quantitative evaluation. The process includes the set up of a database, and the determination of assessment unit, assessment indicators as well as their weights, and evaluation methods for fragile eco-environment. With powerful input, spatial analysis and mapping functions of GIS, the methods including geographic data grouping and cluster analysis are adopted, quantitative assessment and qualitative assessment are performed for fragile karst eco-environment, in order to provide the scientific foundation for eco-environment construction of the karst Guangxi area.
出处
《水土保持学报》
CSCD
北大核心
2004年第1期103-107,共5页
Journal of Soil and Water Conservation
基金
国家自然科学基金项目(40161002)
广西自然科学基金(桂科自0342001-2)
广西科技创新金源单位--广西师范学院资源与环境信息系统实验室项目
广西师范学院学生科研基金项目联合资助
