Abstract:Calculating the value of climate ecological products based on climate resources is an important branch of the accounting system of gross ecosystem product (GEP). It is of a great scientific value in solving the bottleneck of the system of “difficult to measure and difficult to mortgage” of climate resources, and also of a key scientific significance in promoting the asset-based management of climate resources and realizing the value of ecological products. In this study, Fengjie County in Chongqing Municipality is taken as a case to explore the construction of a gross climate ecosystem product (GEPC) accounting system from the perspective of the contribution of climate to ecological products. Utilizing meteorological, ecological environment and socio-economic data, we establish an accounting framework of 12 specific indexes containing the three major functions of climate supply products, climate regulation services, and climate cultural services, and meanwhile systematically assess the value of climate ecological products in Fengjie County in 2019-2023. The results show that the annual mean value of GEPC in Fengjie County in 2019-2023 is 17.17 billion yuan, accounting for 48% of GDP, and the structural characteristics are dominated by “climate regulation” (the value of climate regulation services 57.0%> the value of climate supply products 38.6%> the value of climate cultural services 4.4%). The interannual fluctuation of GEPC is from 13.92 billion yuan to 20.95 billion yuan, with the peak-value year (2023) being 1.5 times the lowest-value years (2019). The ratio of GEPC to GDP in Fengjie County ranges from 0.36 to 0.56 in 2019-2023 and the mean value is 0.48. With reference to the Green Gold Index, this ratio reflects to some extent the dynamic coupling of the transformation of the value of climatic resources and the level of economic development. Fengjie County has a per capita GEPC of about 16 000 yuan·person-1 and a unit area GEPC of about 4 million yuan·km-2, which is a big gap agaist Anji County in Zhejiang Province. This study is a typical case of calculating the value of climate ecosystem products under the mode of “climate factor-service function-economic value” developed under the framework of GEP. This can provide an important reference for calculating the value of climate ecological products in other regions of the country, and can also provide important decision-making support in the fields of climate investment and financing, and the development of industries related to climate ecological products.