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The previous studies of Mengqiguer uranium deposit centred on the directing exploration work and summary of metallogenic regularity. There are few studies on groundwater hydrodynamic field in upstream and downstream of the mining area affected by in-situ leaching. It is found that the linkage between groundwater level and seasonal variation is not obvious in the process of uranium exploration outside the mining area. These changes are quite different from the understanding of the natural flow field of groundwater in the previous exploration process. Previous studies have shown that the groundwater level throughout the deposit varies seasonally. In view of this, this paper analyzes the influence of in-situ leaching mining on the groundwater system of Mengqiguer deposit by collecting the hydrogeological data in the exploration stage and the actual measurement. Through the analysis, it is concluded that the upstream of the in-situ leaching mining area is not affected, the underground water level in the mining area is slowly declining, and the underground water level in the downstream of the mining area continues to decline. This study can provide a new idea for the understanding of groundwater hydrodynamic field in the process of uranium exploration outside the mining area, and also provide data reference for in-situ leaching of uranium.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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