GIS Based Evaluation System for Ecological Constraints of Dianchi Lake Basin

• 作者: Dongmei LEI Hong ZHANG Jing ZHANG Mingquan YANG
• 来源期刊: 亚洲农业研究：英文版
• 学科: 地球科学
• 关键词: Dianchi LAKE BASIN ECOLOGICAL PROTECTION GIS Evalu
• 年，卷（期）: 2014,（4）
• 页码范围: 94-98
• 页数: 5页
• 分类号: X824

摘要

With the advance of urbanization process and rapid growth of urban population,the construction land scale in Dianchi Lake basin increases at a sharp speed.Due to lack of reasonable scale control and space optimization,many areas have the problem of blind growth in construction land.On the one hand,it results in deterioration of regional ecological environment.On the other,it poses hidden danger for sustainable land use in the basin.Therefore,in order to coordination of regional land use and ecological environment construction,this paper on the basis of the existing various zoning method,the natural ecological conditions and resources environment as the constraint conditions of regional ecological balance,puts forward the Dianchi lake watershed ecological constraint type classification method based on GIS,and discusses the evaluation unit division,index selection and handling technical issues.Through evaluating ecological constraints of Dianchi Lake basin,this study divided Dianchi Lake basin into extremely high,higher,high,medium and low ecological constraint zones.Finally,it came up with guiding and regulating measures for land use of each type of ecological constraint,in the hope of providing scientific basis for optimum allocation of land resources in Dianchi Lake basin.