Study on temporal and spatial evolution characteristics of water accumulation in coal mining subsidence area with high groundwater level: taking Anhui Province Mining Area as an example

• Published in: Méitàn kēxué jìshù Vol. 50; no. 12; pp. 215 - 224
• Main Authors: Ru SUN, Xiaojun ZHU, Pengfei ZHANG, Ming LIANG, Xin ZHANG, Zhengyuan NING, Xueni PENG, Hui LIU, Xiaoyu YANG, Wenshan HUANG, Yu YAN, Changzheng DUAN
• Format: Journal Article
• Language: Chinese
• Published: Editorial Department of Coal Science and Technology 01.12.2022
• Subjects: coal mining subsidence area; high groundwater level; predictive analysis; remote sensing monitoring; spatiotemporal evolution; water accumulation
• ISSN: 0253-2336
• DOI: 10.13199/j.cnki.cst.CLNH21-004

In recent years, with the large-scale and high-intensity mining of coal resources, the problem of water accumulation in mining areas with high groundwater levels has become particularly prominent, which has had a serious impact on the surrounding ecological environment. In order to provide scientific basis for the restoration of the ecological environment, the study on the temporal and spatial evolution characteristics and influencing factors of the coal mining subsidence area with high groundwater level were carried out. Taking the whole mining area of Anhui Province as the research subject, based on Landsat TM/OLI remote sensing data, the NDWI and visual interpretation method were used to conduct surveys on the water accumulation area in the subsidence area from 1995 to 2020 (22 periods ) and 12 months in 2020 (12 periods) and the spatial information of waterlogging in the coal mining subsidence area in Anhui Province in recent 25 years was obtained. Combined with hydrological and rainfall data, the factors