Eco-geological environment quality assessment based on multi-source data of the mining city in red soil hilly region,China

• 作者: ZHAO Fei-fei HE Man-chao WANG Yun-tao TAO Zhi-gang LI Chun
• 来源期刊: 山地科学学报（英文版）
• 年，卷（期）: 2022,（1）
• 所属期刊栏目: Mountain Development
• 页码范围: 253-275
• 页数: 23页
• 语种: 英文

摘要

High-intensity and large-scale resource development seriously threatens the fragile ecological environment in the red soil hilly region in southern China.This paper analyzes the coo-geological environmental problems and factors affecting Ganzhou,a mining city in the red soil hilly region,based on field survey and literature.The eco-geological environment quality (EGEQ) assessment system,which covered 11 indicators in physical geography,mining development,geological hazards,as well as water and soil pollution,was established through multi-source data utilization such as remote sensing images,DEM (Digital Elevation Model),field survey and on-site monitoring data.The comprehensive weight of each indicator was calculated through the Analytic Hierarchy Process(AHP) and entropy method.The eco-geological environment assessment map was developed by calculating the EGEQ value through the linear weighted method.The assessment resuits show that the EGEQ was classified into Ⅰ-Ⅴ grades from excellent to worse,among which,EGEQ of Ⅰ-Ⅱ accounted for 29.88％,EGEQ of Ⅲ accounted for 32.35％ and EGEQ of Ⅳ-Ⅴ accounted for 37.77％;the overall EGEQ of Ganzhou was moderate.The assessment system utilized in this research provides scientific and accurate results,which in turn enable the proposal of some tangible protection suggestions.