基于GIS的湖北省人居环境气候适宜性评价

Assessment on the Climate Suitability of the Human Settlement in Hubei Province Based on GIS Technology

运用GIS技术,以30m×30m为栅格尺度,基于温湿指数,采用反距离权重法、普通克里金插值法进行空间内插,系统分析温湿指数在湖北省的空间分布规律,定量评价湖北湖北省人居环境气候适宜性。研究表明:1从总体上说:温湿指数的分布由东南部地区向西北部山区递减。7月份全境只有鄂西山区的部分地区适宜居住,面积大约有大约有3 753.46km2,1月份全省处于不适宜区。2湖北省人居环境气候适宜性区域差距明显,高度适宜区分布在鄂西山区,不适宜区分布在武汉附近的一些地区。3湖北省气候适宜程度表现在由平原向山区、由东南向西北递减的趋势,大部分地区属于一般适宜区与临界适宜区,不适宜区与高度适宜区面积较少。4鄂西山区气候适宜性受到海拔高度的影响,出现了立体适宜性,即随海拔的不同适宜性出现差异。

By using the GIS technology with 30 m 30m raster scale,it was systematically analyzed the spatial distribution regularity of temperature- humidity index in Hubei Province with the methods of inverse distance weighted and Kriging,so as to quantitative evaluate the climate suitability of human settlement environment in Hubei Province. The result showed： ① In general,spatial distribution of temperature- humidity index decreased from the southeast to northwestward. In July,only some mountainous areas of western Hubei Province are suitable for settlement with the area of about 3753. 46km^2. The whole region of Hubei Province is unsuitable for settlement in January; ②The climate suitability of human settlement environment in Hubei appear the obvious differences. The mountainous area of western Hubei Province is very suitable for settlement,while the some area near Wuhan is unsuitable for settlement; ③The climate suitability level of Hubei Province is decreased from the plain to the mountainous,from the southeast to the northwestward. The majority area is belonging to common suitable area and critical suitable area,while the areas of the unsuitable region and very suitable region are relatively few; ④Affected by the altitude,the climate suitability in the mountain area appear stereo suitability,that is the suitability appeared different followed with the different altitude.