基于地质遗迹集中度的地质公园边界划分

Delimiting Border of Geo-parks Based on the Concentration Degree of Geo-sites

中国地质公园在快速发展中出现了边界划分随意、公园面积过大等问题,表明地质公园建设理论较薄弱。该文提出地质遗迹集中度的概念,可表征地质遗迹的分布特征,并具有计算简便、易于操作的特点;将其应用于封开国家地质公园规划修编,可有效控制地质公园面积过大的倾向,并使地质公园空间结构紧凑、主题突出。

When the geo-parks develop quickly in China,there are some unreasonable problems such as that the borders of geoparks are delimited irrationally,and the areas of geo-parks are too huge, which lead conflict between geo-parks itself and local economy,between the geo-parks and the local dwellers. There are lack of theories and methods on geo-parks planning. This is the aim of the paper. In this paper,the theory of degree of concentration of geo-sites was proposed and it was applied in the second planning of Fengkai national geo-park. The result suggests that the degree of concentration of geo-sites can account for the feature of gecy-sites distribution,and the degree of concentration of geo-sites is simply and operable. In the course of planning of geo-parks, using the theory can avoid the areas of geo-parks are too huge,make the spacial structure of the geo-parks more compact and the theme more outstanding.