DIVISION OF NATURE RESERVES BASED ON CONSERVATION AND UTILIZATION VALUE OF GEOHERITAGES: A Case Study of Yanjin Wumeng Canyon Geopark in Yunnan Province

The conservation and utilization value of geoheritage resources is the basis for reasonable division of nature reserves. Taking the geoheritages in Wumeng Canyon Geopark, Yanjin County, Yunnan Province for example, the evaluation index system of conservation and utilization value is constructed from the two aspects of utility and vulnerability of geological heritage resources. The analytic hierarchy process(AHP) is adopted to determine the evaluation factor weight of conservation and utilization value. The expert consultation method is used to establish the classification standards of conservation grade. The Fishbein-Rosenberg model is applied to evaluate the conservation and utilization value of typical geoheritages in Yanjin Geopark and classify the conservation grade. According to the evaluation results, the contour map for conservation and utilization of geoheritage resources is made by Sufer9.0 software. Combined with the convenience of geoheritage conservation and coordination of local planning, the zoning map of Yanjin Wumeng Canyon Geopark is plotted as:super-grade conservation zone of 0.06 km², first-grade conservation zone of 11.74 km², second-grade conservation zone of 23.47 km² and third-grade conservation zone of 75.07 km².