| The characteristics of geological heritage are non-renewable, regional integration, not replicable, not-portable, diversity and more scientific and so on. The most fundamental and essential natural properties of geological heritage is non-reproducibility. This property of geological heritage determines its true value. Geological heritage is a kind of resource, and also an asset. Geo-park is an important carrier of studying, protecting, and developing the geological heritage resources.The existing evaluation of geological heritage is mainly emphasis on the scientific grade evaluation of geological heritage. How to classify and quantitative assess the value of geological heritage resources, especially the quantitative assessment of assets, is the current key and difficult point of geological resources'development, protection and evaluation. Therefore, there is theoretical value and practical significance that based on the analysis of geological heritage's features, and combined with the method of quantitative analysis and assessment of geological heritage resource value to construct heritage resource value to construct and develop our country's geological parks.In this paper, taking Zhangjiajie global geo-park as an example, it is the first time that the value of geological heritage resources have been studied and discussed from qualitative evaluation to quantitative assessment.Firstly, based on the analysis of geological heritage's characteristics, and combined with the development and protection conditions of geological heritage resources. Then a geo-park geological heritage resources evaluation index system was built.The system is composed of two indicators. The first-level indicators are the natural property, the value of property, geographic and environmental conditions, regional economic conditions, basic services and facilities, source area conditions. The second level, there are 22 indicators. Then, using AHP and Delphi method, provided several rounds of consultation on the experts. The relative importance of the geological heritage resources indicators was abtained. And the weight of each index was calculated. The results show that:in the first level indicator, natural attribute is the most important part, followed by the value of property, the geographical conditions and the tourist area condition are not very important. Through the combination of AHP and gray system theory, a multilevel gray evaluation model of Zhangjiajie global geo-park was built.?Secondly, we analyzed and explored types of the economic values of the geological heritage resources and their evaluation methods. The value of the geological heritage resources could be divided into two, market value and non-market value. Market value is the direct use (direct service) values. And non-market values include the indirect use value, the option value, the bequest value and existence value. As for the methodology for valuation, in the paper, existing methods have been summed up on the basis whether the market exists or not, and hence, a method system has been brought forth to systematically valuate the geological heritage resources of the geopark. Namely, for marketable services, the market valuation method, cost payment method, travel cost method and contigent valuation method is recommended. For the non-market public goods, replacement cost method and the contigent valuation method is offered.By using the matket valuation, expense payment method, TCM and CVM, the direct service values of the geological heritage resources in Zhangjiajie Global Geopark(ZGG) is reckoned, covering mainly the scientific research values, culture and education values and tourist values. The results show that in 2010, the direct service values of the geological heritage resources in ZGG reached 14,956,899,000 yuan , of which 39,276,800 yuan is of scientific research values, 25,204,700 yuan of culture and education values, 12,834,813,000 yuan of domestic tourist values and 2,057,605,000 yuan of international tourist values.In the paper, the market valuation method, shadow project method, opportunity cost method, and replacement cost method are used to value the functions of the ecological system includes the carbon fixation, water conservation, soil conservation, output of the standing trees, nutrient retention and air purification. The valuation results reveal that the tatal ecological function value of the geological heritage resources is estimatedly 1,356,588,600 yuan, of which, 67,414,000yuan of the carbon fixation, 1,158,936,300yuan of water conservation, 24,204,300 yuan of soil conservation, 73,688,000 yuan of output of the standing trees, 29,774,700 yuan of nutrient rentention and 2,571,300 yuan of air purification.The CVM is used to value the non-use values of the geological heritage resources in ZGG. The non-use values include the existence values, bequest values and option values. The non-use values of the geological heritage resources in ZGG in 2010 is deduced as 10,637,000,000 yuan, of which 6,339,000,000 yuan option values, 3,319,000,000 yuan bequest values and 979,000,000 yuan option values.At the last, the author has put forword his own ideas on asset management of geological heritage resources of the geopark: Firstly, our geological heritage resources'management and current situation was analyzed. Secondly, proposed several ways about reforming our geological heritage resources'management. Finally, it is suggested to build the unified management of geological heritage resources. The government's role in asset management was stressed, and went to details about business mode of market operation.
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