基于改进型TOPSIS模型的农村建设用地集约程度评价

Evaluation of Intensive Untilization Degree of Rural Construction Land Based on Proved TOPSIS Method

农村建设用地集约利用是农村土地利用的重要组成部分,是解决土地供需矛盾的重要举措。从土地利用程度、投入强度、产出效果,结合社会经济情况和区域地形条件5个方面,构建了甘肃省临夏县北塬地区农村建设用地集约利用评价指标体系,运用因子分析法和层次分析法进行客观与主观的组合赋权,并采用改进的TOPSIS法对临夏县北塬地区的农村建设用地集约利用程度进行了排序。评价结果表明,土桥镇、先锋乡和河西乡的农村建设用地集约程度相对最高,莲花镇、北塬乡、安家坡乡、桥寺乡的农村建设用地集约程度次之,南塬乡和坡头乡的农村建设用地集约程度相对最低。从利用程度、经济和社会因素分析了造成各乡镇差异原因。

Intensive utilization of rural construction land is an important part of rural land use,and is one of the important measures to solve the contradiction between supply and demand of land.The paper constructed a set of evaluation indexes to evaluate the intensive utilization degree of rural construction land in Beiyuan area of Linxia County in Gansu Province,using the information on land use intensity,input intensity,and output results,the socio-economic situation and the regional terrain conditions.Then factor analysis method and analytic hierarchy process（AHP）were used to bestow weighting using combination of objective and subjective methods,and sorted the order of the intensive utilization of rural construction land in Beiyuan area using the improved TOPSIS method.The results showed that Tuqiao Town,Xianfeng Township,Hexi Township have the highest land use intensity;Lianhua Town,Beiyuan Township,Anjiapo Township and Qiaosi Township have higher land use intensity while Nanyuan Township and Potou Township have lower land use intensity.The causes of differences were analyzed with the consideration of land utilization,economic and social factors.