An Evaluation Mechanism Based on Ability of Ecosystem Services

With the continuous development of the society, people are suffering from the deterioration of ecology. To alleviate the crisis, we establish an evaluation system based on the ability of the ecosystem services. In order to establish a three-class indicator system with the Ecosystem Service Index (ESI) as the core, we use Factor Analysis (FA) to determine 4 second-class indicators and 15 third-class indicators, as well as the weights of the second-class indicators. Then, we adopt the combined weight model of Grey Relational Analysis (GRA) and Entropy Weight Method (EWM) to compute the weights of 15 third-class indicators. In addition, Fuzzy Cluster Analysis (FCA) is used to measure the ability of the ecosystem services by setting corresponding standards. Above all, the model can be used to make quantitative analysis and qualitative evaluation to assess the overall situation of the ecosystem, which has strong practical guiding significance.