Full
Outline
The Tianjingshan mining area is a limestone quarrying region for construction purposes in the typical arid areas of northwest China. Due to severe environmental damage in this mining area, natural revegetation is no longer possible, and there is an urgent need for restoration and management. In light of this, from the overall perspective of the mine's eco-geological environmental system, research was conducted on the eco-geological environment of the mining area using the analytic hierarchy process (AHP) and fuzzy comprehensive evaluation (FCE) methods. 20 evaluation factors were selected from both ecological and geological aspects. An eco-geological environmental evaluation system was constructed that is consistent with the characteristics of typical arid areas and oriented towards mine ecology restoration. This system aims to quantitatively and accurately determine the quality levels of the eco-geological environment of the mining area and match appropriate restoration and management models for corresponding levels. Based on the evaluation result that the eco-geological environment quality level of this mining area was poor (Level Ⅲ), targeted restoration and management mode of the mining area were carried out using combined methods of geological disaster risk elimination, soil reconstruction, vegetation reconstruction, and manual maintenance. Secondary revegetation of the mine relic site was ultimately achieved. The results show that the evaluation system can provide a relatively objective evaluation of the eco-geological environment of limestone mines in arid areas and the proposed restoration and management modes have good restoration and management effects, which can be replicated and promoted for application in local and similar arid and semi-arid areas for the restoration and management of mine relic sites.
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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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