Ecological Environment Influence Appraisal Model based on Entropy Weight Method and GE Matrix

Jiyang Liu ； Fangtong Sun ； Xin Wang ； Hanwen Yu ； Yuxin Wu

《International Core Journal of Engineering》 8卷7期 (2022/07) Pp. 421-427

https://doi.org/10.6919/ICJE.202207_8(7).0056

摘要

This paper establishes a two-dimensional model for the ecological environment evaluation of Saihanba by selecting the main indexes such as climate, biology, hydrology, and land. The principal component analysis was used to remove the correlation among the indexes. The current standard and field data are combined to give weight, and the entropy weight method is used to give weight data to amend. A two-dimensional evaluation model of the ecological environment is established by using the GE matrix, and the Stability Index (SI) is introduced to quantitatively express the comprehensive efficiency of the ecological environment in the GE matrix, the distance between the coordinate and the optimum point (1,1) is taken as a quantitative index to evaluate the comprehensive efficiency of ecological environment. Before and after the completion of the Saihanba, the comprehensive eco-environmental efficiency was improved by 77.65%.

關鍵字

Two-dimensional Model ； Entropy Weight Method ； GE Matrix

參考文獻

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