基于GIS的杭州人居环境自然适宜性评价

Fei Gao, Ruei-Yuan Wang
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引用次数: 1

摘要

以杭州市为研究区,利用地理信息系统(GIS)技术,选取地形、植被、气候、水文等自然因子进行分析。在评价人类住区单因素适宜性的基础上,构建人类住区环境指数(HEI),探讨杭州市人类住区自然适宜性特征及空间差异。研究结果表明:杭州市人居环境自然适宜性指数在0.06 ~ 0.93之间,总体格局为中部最高,向东北、西南方向逐渐降低;适宜区分布面积最广,占全省面积的26.55%。高度适宜区土地面积占22.69%,一般适宜区土地面积占20.69%。关键适宜区和不适宜区面积相对较少,分别占13.10%和16.97%。特别是杭州市区,地势起伏低、地势平坦是其有利的自然条件,但其植被覆盖、气候、水文条件等均不及除市区外的其他研究区。因此,综合分析,其HEI低于周边地区。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evaluation of Natural Suitability of Human Settlements Environment in Hangzhou Based on GIS
Taking Hangzhou City as the study area, Geographic Information System (GIS) technology was used, selecting natural factors such as terrain, vegetation, climate, and hydrology for analysis. On the basis of evaluating the suitability of a single factor of human settlements, a Human Settlements Environment Index (HEI) is constructed to explore the natural suitability characteristics and spatial differences of human settlements in Hangzhou. The research results indicate that the natural suitability index of the human settlement environment in Hangzhou is between 0.06 and 0.93, with the overall pattern being the highest in the central region and gradually decreasing towards the northeast and southwest. The distribution area of more suitable areas is the widest, accounting for 26.55% of the province's area. The land area of highly suitable areas accounts for 22.69%, while the area of generally suitable areas accounts for 20.69%. The area of critical suitable areas and unsuitable areas is relatively low, accounting for 13.10% and 16.97%, respectively. Especially for the urban area of Hangzhou, low terrain undulation and flat terrain are its advantageous natural conditions, but its vegetation cover, climate, and hydrological conditions are inferior to other research areas except for the urban area. Therefore, based on the comprehensive analysis, its HEI is lower than the surrounding areas.
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