大渡河峡谷地质遗迹的分区开发保护

地质遗迹调查和价值分析是开展地学旅游的前期工作。大渡河峡谷国家地质公园地质遗迹分布广泛，对其进行合理分级与开发保护，可以降低该地的地质灾害和人类活动对地质遗迹的影响。从地质环境、生态环境与社会环境三个方面选择15个指标，利用层次分析法、变异系数法与最小相对信息熵建立公园地质环境承载力评价体系，对大渡河峡谷国家地质公园进行环境承载力研究，发现大渡河峡谷地质环境承载力较好，总体上呈现“北优南差”的空间格局。在此基础上，对大渡河峡谷环境承载力进行局部空间自相关分析，建立基于地质遗迹分级与承载力评价的分区方法，将该公园地质遗迹的开发保护分为复合开发区、一般开发区、重点保护区与严格保护区。

Geological Heritage Development and Protection Zoning Based on Geological Environment Bearing Capacity

Geological heritage investigation and value analysis are the preliminary work for geoscience tourism. The geological heritagess of the Dadu River Gorge National Geopark are widely distributed. Reasonable classification and development protection can reduce the impact of geological disasters and human activities on geological heritages. 15 index were selected from the aspects of geological， ecological and social environment. By using AHP， coefficient of variation and minimum relative information entropy， we established the evaluation system of geological environmental bearing capacity of the Dadu River Gorge National Geopark and studied the environmental bearing capacity of the Dadu River Gorge National Geopark. It was found that the Dadu River Gorge has a good geological environmental bearing capacity， showing a spatial pattern of “ superior in the north and inferior in the south” . On this basis， we did local spatial autocorrelation analysis of environmental bearing capacity， and established a zoning method based on dual evaluation of geological heritages classification and bearing capacity. A hierarchical zoning is proposed for the development and protection of geological heritages of the geopark，dividing the geopark into compound development zone， ordinary development zone， key protection zone and strict protection zone.