Abstract:

Ecosystem service function is the natural environment condition and utility, which is formed and maintained by ecosystem and ecological process, and important for the survival of human beings. The monetized evaluation of its use value can promote the sustainable utilization of natural resources and promote the regional ecological environment protection. This study took the Dalinor Lake wetland as the research object, analyzed its structure, features and ecological process characteristics of the wetland ecosystem. Based on data collection and field investigation, the service value of the Dalinor Lake wetland ecosystem was classified by the theory and method of resource economics. The study constructed the use value evaluation index system of the Dalinor Lake wetland ecosystem, and evaluated its service value. The evaluation results showed that the service value of the Dalinor Lake wetland was 93.70×10⁸ yuan, of which the direct use value was 2.19×10⁸ yuan, accounting for 2.36%, and the indirect use value was 91.51×10⁸ yuan, accounting for 97.66%. Among all the ecosystem service functions, the value of adjusting air humidity was the largest, which was 82.76×10⁸ yuan, accounting for 88.32% of the total service value.

Key words: Dalinor Lake, use value, ecosystem service, lake management, environmental protection