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城市生态本底分析是编制城市总体规划、空间规划等必不可少的规划内容,为城市用地、人口和产业布局等提供重要的技术支撑。本文以赤峰市为例,运用生态学理论和GIS技术,选取高程、坡度、植被覆盖、地质安全、生境、沙化6个因子,将研究区划分为重度敏感、中度敏感、轻度敏感和一般敏感4个等级。利用AHP方法确定因子权重,得到综合生态敏感性空间分布图,进一步划定生态管控分区,并提出相应的保护和发展建议,为城市用地布局提供了科学依据。
The analysis of urban ecological background is an indispensable part of the planning of urban overall planning and spatial planning, providing important technical support for urban land use, population and industrial layout. Taking Chifeng City as an example, using the theory of ecology and GIS technology, six factors including elevation, slope, vegetation cover, geo-safety, habitat and desertification were selected to divide the study area into three types: severe sensitive, moderate sensitive, mild sensitive and general Sensitive 4 levels. AHP method is used to determine the weight of the factors, the spatial distribution of comprehensive ecological sensitivity is obtained, the ecological control and control zoning is further delineated, and the corresponding suggestions for protection and development are put forward, which provide scientific basis for the layout of urban land use.