地貌在城市建设用地生态适宜性分区中影响研究--以浏阳河流域为例

Effect of Physiognomy Factor on the Ecological Suitability Classification of Urban Construction——A Case Study of Liuyanghe Watershed

在地理信息系统的支持下,在对影响区域生态过程的因素进行综合分析基础上,重点探讨了地貌因素在城市建设用地生态适宜性分区中的作用以及对分区结果的影响.研究结果显示:浏阳河流域中长沙市最适宜用地、适宜用地、基本适宜用地、不适宜用地、不可用地分别占总用地的1.95%,8.12%,23.96%,42.72%和23.25%,结果与实际城市建设发展基本一致.研究结果表明,将地貌因素作为一个重要指标进行城市建设用地生态适宜性分区研究,更具有针对性,分区结果更加合理.

The ecological suitability classification is the most important part of ecological planning, which has very important significance on the establishment of ecological environment protection measures. With the support of GIS, this paper analyzed the factors influenceing the ecological process, of which the physiognomy factor on the ecological suitability classification was mainly discussed. As a result, the percentage of the highly suitable land, suitable land, moderately suitable land, not suitable land and permanently not suitable land was 1.95 %, 8.12 % , 23.96 % , 42.72 % and 23.25 % , respectively, which agreed with actual city construction. The result of this research has indicated that the approach with physiognomy factor as an important index is quite necessary for the ecological suitability classification, and the result is more reasonable and suitable for the local physical and social status than other methods.