TOPSIS model with entropy weight for eco geological environmental carrying capacity assessment

In order to understand the comprehensive effect of eco-geological environment and determine the development direction of eco-geological environment resources utilization, the evaluation index system of eco-geological environment carrying capacity is divided into three subsystems: geological environment subsystem, ecological environment subsystem and social environment subsystem according to the data of China Statistical Yearbook. By using the above evaluation indicators to construct a standardized evaluation matrix, the entropy weight is added to the evaluation matrix to determine the positive and negative ideal solution of the entropy weight evaluation matrix, calculate the distance between the positive and negative ideal solution, and finally obtain the closeness of each index TOPSIS model through the distance between the positive and negative ideal solution, and evaluate the ecological geological environment of each region through the closeness of each index. The environmental carrying capacity, based on the TOPSIS model of entropy weight, is constructed to evaluate the ecological geological environmental carrying capacity. Five districts and counties around Longquan Mountains in Chengdu City were selected as the research objects. The results of the model were 41.82%, 17.17%, 19.10% and 21.92 respectively.

Automated summary

By establishing an evaluation index system for the ecological geological environment carrying capacity and using the entropy weight TOPSIS model, the ecological geological environment of five districts and counties around Longquan Mountains in Chengdu City was evaluated, providing a basis for further optimizing resource utilization. The results show different levels of environmental carrying capacity in the studied regions.