花房村建设用地适宜性评价的GIS实现

Application of GIS on Construction Land Suitability Evaluation of Huafang Village

村域建设用地适宜性评价是村级土地利用规划的基础,其在新农村建设及统筹城乡发展中具有重要的意义。笔者选取"千百工程"之一的重庆市巴南区天星寺镇花房村为例,采用权的最小平方法确定各指标的权重,通过GIS空间分析,根据得到的结果划分为4种土地适宜性评价等级:很适宜、较适宜、适宜、不适宜,并对研究区建设用地适宜性绘制了专题地图。研究结果表明:花房村村域内,天井山脉及其两侧不适宜布局建设用地,荔枝社、陈家嘴社和陶院子社建设用地适宜性较强,可布设"巴渝新村"。通过引入GIS技术,提高了建设用地适宜性评价的科学性和工作效率,对优化建设用地的空间布局提供了科学依据。

Suitability evaluation of villages ＇ construction land is the foundation of village land use planning,contributing to new rural construction and overall planning of city and countryside development.The author chose Huafang village in Chongqing Banan area as the research object.The method of minimum factors ＇ weight square was adopted to determine the index weight,using which weighted sum was calculated.Specifically,spatial analysis with GIS gave 4 levels of land suitability evaluation of the village：the best appropriate,the better appropriate,the appropriate and the non-appropriate.After that,the map of construction land suitability evaluation of the study region was drawn.The results showed that in Huafang village,Tianjing hill and the neighboring area were not suitable for construction layout,while Lizhi community,Chenjiazui community and Taoyuanzi community were relatively suitable for construction layout.On the whole,＇ Bayu New Village ＇ could be implemented in this village.Through the introduction of GIS technology,the scientific property and work efficiency were improved.Also,scientific basis was offered to improve the distribution of construction land.