Abstract Details
231 / 2023-09-28 18:15:38
基于GRACE数据评估黄土高原煤炭开采对地下水储量的影响
GRACE/GRACE-FO; Loess Plateau; Groundwater ; Coal Mining
Abstract Pending
The Loess Plateau is the largest coal energy base in China, and studying the relationship between coal mining and groundwater resource consumption is of great significance. Firstly, based on GRACE/GRACE-FO data and GLDAS hydrological model, the groundwater storage changes in the Loess Plateau from 2006 to 2020 were inverted; Secondly, combining coal mining data to correct signal interference caused by coal mining in GRACE inversion results; Finally, the ANN model was used to simulate the spatiotemporal variation trend of normal water consumption in the Loess Plateau, and based on this, the impact of coal mining on the changes in groundwater reserves was analyzed. The study found that: (1) After deducting the interference of coal mining, the changes in land water storage and groundwater storage on the Loess Plateau from 2006 to 2020 were -0.53 ± 0.16cm/year and -0.66 ± 0.08cm/year, respectively; (2) It is estimated that the mine tunnel drainage in Shanxi Province in the Loess Plateau area were -0.17 ± 0.03 cm/year, -0.46 ± 0.05 cm/year, which indicates that the coal mining output in the eastern part of the Loess Plateau has caused serious groundwater loss. (3) In terms of space, the area with severe groundwater consumption after deducting the fitted normal water consumption from the groundwater retrieved by GRACE wasconsistent with the distribution of coal mining areas, indicating that coal mining was the main driving factor for groundwater reserve consumption in the eastern region of the Loess Plateau. This study reveals the important impact of coal mining on water resources in the Loess Plateau, which can provide guidance for coal and water resource management in the Loess Plateau region.
Important Date
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Conference Date
Oct 26
2023
toOct 29
2023
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Oct 15 2023
Abstract Submission Deadline
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Oct 15 2023
Draft paper submission deadline
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Nov 13 2023
Registration deadline
Sponsored By
International Society for Mine Surveying
China Coal Society
China Surveying and Mapping Society
China Coal Society
China Surveying and Mapping Society
Organized By
中国矿业大学
中国煤炭科工集团有限公司
中国煤炭科工集团有限公司
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