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

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 eco-geological environmental problems and factors affecting Ganzhou, a mining city in the red soil hilly region, based on...

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Bibliographic Details
Published in:Journal of mountain science 2022, Vol.19 (1), p.253-275
Main Authors: Zhao, Fei-fei, He, Man-chao, Wang, Yun-tao, Tao, Zhi-gang, Li, Chun
Format: Article
Language:English
Subjects:
Analytic hierarchy process
Digital Elevation Models
Digital imaging
Earth and Environmental Science
Earth Sciences
Ecology
Entropy
Environment
Environmental assessment
Environmental impact
Geography
Geological hazards
Geological mapping
Geological surveys
Geology
Original Article
Quality assessment
Quality control
Remote sensing
Resource development
Soil
Soil pollution
Soil water
Surveying
Water pollution
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Summary: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 eco-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 results 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.
ISSN:1672-6316
1993-0321
1008-2786
DOI:10.1007/s11629-021-6860-x