摘要
以湖北省作为研究区域,运用GIS技术,以自然地理学为基础,从人居环境自然适宜性出发,以30m×30 m栅格为基本单元,选择影响人居环境最主要的4个因子(地形、气候、水文与地被条件),定量评价湖北省不同地区人居环境的自然适宜性。结果表明,湖北省人居环境指数呈现出由北向南递减趋势,其中西南部五峰土家族自治县周围出现高值区。湖北省人居环境适宜地区面积为1.100 77×105 km^2。从适宜因子分析表明受双因子适宜面积最大,占高度适宜区的63.33%,多因子适宜区和单因子适宜区面积各占高度适宜区2.52%和24.98%。湖北省人居环境临界适宜地区面积为4.075 30×104 km^2,占湖北省面积的22.2%。其中,以高度适宜区单因子为标准,适宜性临界区和限制性临界区面积各占2 114.342 2 km^2和2 114.342 2 km^2。人居环境不适宜地区土地面积为4.219 9×104 km^2,占湖北省面积的19.4%,从不适宜区限制性分析可知,人居环境不适宜区受双因子限制的面积最大,占不适宜区32.48%,多因子限制和单因子限制面积各占不适宜区13.37%和10.08%;综合限制型面积最小,只占不适宜区2.01%。
the natural suitability of human settlement not only affects people＇s health and quality of life, but also affects the levels of progress and development in human society. This paper studied the area of Hubei province using GIS technology, based on physical geography and the natural suitability of human settlement. We use the 30 mx30 m grid as the basic unit, and select four of the most important factors of human settlement conditions： topography, climate, hydrology and ground cov-er, and make them quantitative assessment in all regions of Hubei province＇s natural suitability. It were showed that the in-dex of residential environment in Hubei province showed a decreasing trend from North to South. The autonomous county of Wufeng in the southwestern Hubei appears highly. The most suitable areas of human settlement in Hubei Province are totally 1.100 77×105 km2. In Hubei Province, the two-factor suitable for settlement is the largest, representing highly suitable area in 63.33%, multi-factor suitable districts and single factor suitable are 2.52% and 24.98%. The appropriate areas for human set-tlements in Hubei Province are 4.075 30×104 km2. It is about 22.20% for all Hubei Province. Among them, using elevation as the standard suitability of settlement, the suitability areas are 2 114.342 2 km2, and the restricted areas are 2 114.342 2 km2. The unsuitable areas in Hubei Province are 4.219 90×104 km2, accounted for 19.40% for all Hubei Province. From the district restrictive analysis, the double factors unsuitable areas are the largest, accounted for32.48%. The multi-factor restricted areas and the single factor restricted areas are accounted for 13.37% and 10.08%. The areas which are not suitable for settlement from four factors is the smallest, only accounted for 2.01% in all unsuitable Districts.
出处
《湖北农业科学》
2015年第21期5235-5239,5245,共6页
Hubei Agricultural Sciences
基金
湖北省高等学校优秀中青年创新团队项目(T201314)
湖北省教育厅人文社会科学项目(15Q192)
襄阳市科技计划软科学研究项目[襄科业(2013)66号]
关键词
人居环境
自然适宜性
GIS技术
湖北省
human settlements
natural suitability
GIS technology
Hubei Province
