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
收稿日期: 2012-04-01
修回日期: 2012-09-01
网络出版日期: 2013-04-20
基金资助
中国科学院知识创新工程重要方向项目(kzcx2-yw-321)。
Eco-Sensitivity Assessing and Protecting Policy in the Complex Geomorphic Region——A Case Study of Qinzhou City in Guangxi
Received date: 2012-04-01
Revised date: 2012-09-01
Online published: 2013-04-20
秦贤宏, 陈雯, 段学军, 董雅文, 王磊 . 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[J]. 自然资源学报, 2013 , 28(4) : 608 -617 . DOI: 10.11849/zrzyxb.2013.04.007
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.
Key words： complex geomorphic region; eco-sensitivity; watershed; Qinzhou City
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