复杂地貌区域生态敏感区综合评价与保护对策——以广西钦州市为例  

Eco-Sensitivity Assessing and Protecting Policy in the Complex Geomorphic Region —A Case Study of Qinzhou City in Guangxi

作　　者：秦贤宏[1,2,3] 陈雯[1] 段学军[1] 董雅文[1] 王磊[4] 

机构地区：[1]中国科学院南京地理与湖泊研究所,南京210008 [2]中国科学院大学,北京100049 [3]江苏省工程咨询中心,南京210003 [4]香港中文大学地理与资源管理系

出　　处：《自然资源学报》2013年第4期608-617,共10页Journal of Natural Resources

基　　金：中国科学院知识创新工程重要方向项目(kzcx2-yw-321)

摘　　要：复杂地貌区域国土开发受生态环境因素影响较单一地貌地区更复杂,其境内生态敏感区类型较多,且空间分布比较杂乱,不同生态敏感区之间又相互影响。文章选择山、水、林、田、城互为镶嵌的广西钦州市作为案例城市,以小流域为评价单元,建立集"地"、"水"、"绿"三位于一体的评价体系,在遥感和GIS技术的支持下,将单因子定性分级和多因子空间叠加模型相结合,对整个区域的生态敏感区进行综合评价及分区。从研究结果来看,这种评价技术能够较好地反映这些生态敏感区的综合分异规律,有助于当地政府在区域开发中制定更为科学的生态安全防范对策。Eco-sensitivity evaluation is the basis for land development, which has important practical significance for the establishment of environment-friendly economic and social development model. Compared with the single geomorphic region, the complex geomorphic region is limited by more eco-sensitivity factors in land exploitation. More serious is that these factors have very complicated spatial characteristics and they affect each other. Based on the existing research results, the paper takes Qinzhou city as a case study, invents an eco-sensitivity assessment system which includes land-ecology, water-ecology and plant-ecology; then it makes a systematic comprehensive assessment for all watersheds by using qualitative classification and spatial quantitative model in the support of remote sensing and GIS technology, and groups Qinzhou city＇ s 273 watersheds into three types： high-sensitivity-area, medium-sensitivity-area and low-sensitivity-area; finally, it suggests to limit land exploitation activities in the high-sensitivity-area and construct a ecological security network to protect the city＇ s ecological security. The results show that this method can help us find the eco-sensitivity characteristics of complex geomorphic region and the government can work out more scientific policy to protect this region＇ s ecological security.

关 键 词：复杂地貌区域 生态敏感区 流域单元 钦州市 

分 类 号：X321[环境科学与工程—环境工程]