摘要
为了进行土地适宜性评价,首先利用MAPGIS和ARCVIEW进行图层信息采集(数字化),建立区域图形库的同时,建立土地适宜性评价指标体系,采用特尔菲法确定因素权重,并建立GIS系统管理下的各图层(评价因素)空间属性信息数据库,接着利用GIS叠加分析功能,确定土地适宜性评价的最小评价单元,最后利用累加求和模型计算评价单元的分值并划分适宜等级。对城口县土地适宜性评价结果表明,利用GIS对土地适宜性进行评价,其方法切实可行,具有传统的评价不可比拟的优越性。
This paper is a study of the land use suitability evaluation theory and methods in a case of study in Chengkou County, Chongqing. Firstly we build a spatial database through spatial data collection by using the MAPGIS and ARCVI0EW. Secondly, we establish land suitability evaluation indices system, and built a spatial attribute database based on standardization of muhiple factors and the weight of standardized. Then we identify the minimum evaluation unit of the land suitability assessment. Finally ,we rank the score of minimum evaluation unit calculated by total seore formula with GIS technology. It is feasible and advantageous to evaluate land suitability by using GIS tools.
出处
《重庆师范大学学报（自然科学版）》
CAS
2007年第4期21-25,F0003,共6页
Journal of Chongqing Normal University:Natural Science
基金
重庆城口县土地利用总体规划修编项目(No.A2006-6)
