ZHU Kangwen,ZHOU Mengtian.Land Suitability Evaluation of Mountainous Towns in China—A Case Study in Wulong County, of Chongqing[J].Research of Soil and Water Conservation,2015,22(02):178-183.
中国山地城镇的土地适宜性评价研究——以重庆市武隆县为例
- Title:
- Land Suitability Evaluation of Mountainous Towns in China—A Case Study in Wulong County, of Chongqing
- Keywords:
- suitability evaluation; AHP; GIS; carrying capacity; Wulong County
- 分类号:
- P964
- 摘要:
- 以重庆市武隆县为研究区域，采用25 m×25 m栅格大小，针对中国山地城镇的特点，综合运用GIS和RS技术，构建土地适宜性评价模型，参与评价的弹性因子包括：距离城镇的距离、距离主要道路的距离、高程、地表起伏度、坡度和各种土地利用现状，采用层次分析法（AHP）确定各因子的权重，权重结果分别为0.253 3，0.211 6，0.093 0，0.136 9，0.206 9，0.098 3，刚性因子包括基本农田、重要生态用地和各类保护区，刚性因子作为评价的限制因素。综合运用ArcGIS 10.0软件的数据管理和空间分析功能，结合选取的评价因子建立武隆县土地适宜性评价数据库，为武隆县城镇建设提供数据支撑。研究结果表明：适宜建设用地和较适宜建设用地面积分别为46.78，70.11 km2，占总面积的比例分别为1.62%，2.43%。
- Abstract:
- Taking Wulong County, Chongqing Municipality as a case, using the data of 25 m×25 m raster, based on the integrated use of GIS and RS technology, we built land suitability evaluation model for the Chinese mountainous town. The elasticity factors involved in the evaluation model include the distance from the town, the distance from the main road, elevation, the waviness of land surface, slope and the present situation of land use. The weighting elasticity factors were 0.253 3, 0.211 6, 0.093 0, 0.136 9, 0.206 9 and 0.098 3, respectively. The rigidity factors involved in the evaluation model include the basic farmland, the ecological land and the protected areas. According to integrated use of the data management and spatial analysis function of Arcgis 10.0 software, combing with the selection of evaluation factors, we established the land suitability evaluation database of Wulong County, and provided data support for the construction of Wulong County. The results showed that the suitable and slightly suitable land for construction areas were 46.78 and 70.11 km2, respectively, percentages of total area was 1.62% and 2.43%, respectively.
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备注/Memo
收稿日期:2014-05-07;改回日期:2014-06-10。
基金项目:重庆市博士后科研项目特别资助基金（xm201102001）；重庆市教委科技项目（CY120402）；重庆市气象局开放基金（Kfjj-201103）
作者简介:朱康文(1990-),男,湖南省张家界市人,硕士研究生,主要从事GIS相关研究及应用。E-mail:zhukangwen0927@163.com
通讯作者:周梦甜(1990-),女,新疆阿勒泰地区人,硕士研究生,主要从事GIS相关研究。E-mail:412588701@qq.com