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对区域非城镇建设用地用作城镇建设用地的生态适宜程度进行评价是城市生态规划的核心问题,也是城市总体规划制定的基础和依据。以呼和浩特市为例,采用单因子评价分析与综合评价分析相结合的方法,在Arc-GIS软件的空间分析功能的支持下,确定了呼和浩特市城镇建设用地适宜、较适宜、较不适宜和不适宜4级综合生态适宜性分类。研究结果表明,呼和浩特市城镇建设用地适宜级别土地占总面积的39.1%;较适宜级别占7.3%;较不适宜级别占25.6%;不适宜占28.1%。从不同适宜级别土地在不同旗县区的分布特点来看,呼和浩特市城区、土默特左旗的适宜建设土地相对较多,分别为39.1%和28.5%;土默特左旗和托克托县的不适宜土地相对面积较大,分别为45.3%和53.6%。
It is the core issue of urban ecological planning to evaluate the ecological suitability of the land for non-urban construction in urban areas for urban construction as well as the basis and basis for the overall urban planning. Taking Hohhot as an example, the method of combining single-factor evaluation and comprehensive evaluation was used to determine the suitability of urban construction land in Hohhot with the support of the spatial analysis function of Arc-GIS software. Suitable for 4-level comprehensive ecological suitability classification. The results show that the appropriate level of land for urban construction in Hohhot occupies 39.1% of the total area; the suitable level accounts for 7.3%; the less suitable level accounts for 25.6%; and the unfavorable accounts for 28.1%. According to the distribution characteristics of land of different suitable levels in different counties and districts, the suitable land for construction in Hohhot city and Tumotezuoqi is relatively more (39.1% and 28.5% respectively); Tumotezuoqi and Tuoketuo The relative area of inappropriate land in the county is relatively large, at 45.3% and 53.6% respectively.