摘要
In the background of a new round reform and western development strategy, making suitability evaluation of construction land complex topography area in southwest China scientifically and accurately has an important guiding significance on the construction of local urban and rural development. We selected economic factor of construction, safety factor of construction, factor of the present situation of land use and ecological protection factor in Tongzi county as evaluation indexes, and ascertained the weight of each elastic indicator using the analytic hierarchy process method. By the support of GIS and RS technology, we combined the single-factor qualitative classification with the multi-factor weighted overlay analysis to make comprehensive suitability evaluation of construction land on the whole study area. And five different types of construction land were divided, namely, ‘excellent', ‘very good', ‘good', ‘moderate' and ‘poor'. The result shows that the area of ‘excellent' construction land is 30.47 km^2(0.95%), 101.46 km^2(3.16%) of ‘very good', 550.34 km^2(17.16%) of ‘good', and 664.69 km^2(20.72%) and 1 860.65 km^2(58.01%) of ‘moderate' and ‘poor', respectively. The land space bearing capacity is a population of 791 600, and the remaining population capacity is 170 900 persons.
In the background of a new round reform and western development strategy, making suitability evaluation of construction land complex topography area in southwest China scientifically and accurately has an important guiding significance on the construction of local urban and rural development. We selected economic factor of construction, safety factor of construction, factor of the present situation of land use and ecological protection factor in Tongzi county as evaluation indexes, and ascertained the weight of each elastic indicator using the analytic hierarchy process method. By the support of GIS and RS technology, we combined the single-factor qualitative classification with the multi-factor weighted overlay analysis to make comprehensive suitability evaluation of construction land on the whole study area. And five different types of construction land were divided, namely, ＇excellent＇, ＇very good＇, ＇good＇, ＇moderatC and ＇poor＇. The result shows that the area of ＇excellent＇ construction land is 30.47 km^2 （0.95%）, 101.46 km^2 （3.16%） of ＇very good＇, 550.34 km^2 （17.16%） of ＇good＇, and 664.69 km^2 （20.72%） and 1 860.65 km^2 （58.01%） of ＇moderate＇ and ＇poor＇, respectively. The land space bearing capacity is a population of 791 600, and the remaining population capacity is 170 900 persons.
基金
Funded by National Natural Science Foundation of China(No.40771135
No.41201546
and No 41261038)
Special Project for Technological Basic Work of China(No.2011FY110400)
Basic and Frontier Research Project in Chongqing of China(No.cstc2014jcyj A1557)
Science and Technology Project of Chongqing Municipal Education Commission(No.KJ130625)
Science and Technology Planning of Guizhou Province in China(Qiankehe JZ code[2014]200206)
Natural Science Foundation of Chongqing in China(No.cstc2012jj A20010)
Chongqing Normal University Graduate Student Research Innovation Project(No.YKC14010)
