Comprehensive value evaluation of geological heritage resources based on township division：Taking Yanjin county as an example

Yanjin county is located in the northeast of Yunnan Province. It is a typical mountainous area with rich geological heritage and high potential for geological tourism development, which requires reasonable protection and utilization. Presently, the management and protection of the geological heritage landscape of Yanjin county has been implemented to the township-level administrative institutions. At the same time, Yanjin county is a national poverty-stricken county with limited funds for protection and development of geological heritage landscape. Therefore, the classification of quality grades of township geological heritage sites has a clear guiding role in the protection of geological heritages in towns. The comprehensive valuably evaluation of township geological heritage is beneficial to the Yanjin government to prioritize the limited funds to the town with higher comprehensive value of geological heritage resources. Based on the analysis of the characteristics of the geological heritage resources of Yanjin county and taking the geological heritage resources of Yanjin county as the research object and the township division as the unit, this article uses the Delphi method to classify the quality level of township geological heritage sites in Yanjin county according to the classification standard of geological heritage quality in the Geological Relics Survey Specification. The results of the division can correctly reflect the quality status of geological heritage resources in various towns in Yanjin county.At the same time, this paper uses the Delphi method and the analytic hierarchy process to construct a comprehensive evaluation index system for the geological heritage resources of Yanjin township and adopt the Fish by-Rosenberg model to quantitatively evaluate the comprehensive value of the township geological heritage resources of in Yanjin. The results show that the order of the comprehensive value of the geological heritage resources of Yanjin county is，Shizi town>Dousha town>Miaoba town>Niuzhai town> Pu’er town>Zhonghe town>Yanjing town>Tantou town>Luoyan town>Xinglong town.