基于PSR-可拓云模型的井工煤矿区生态安全评价
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X826

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国家自然科学基金项目“故障数据和影响因素作用下的系统故障特征研究”(52004120); 国家重点研发计划项目“采矿扰动区环境地质灾害风险控制与消减综合对策”(2017YFC1503102); 辽宁省教育厅项目“基于故障数据和影响因素的系统可靠性分析理论研究”(LJ2020QNL018)。


Ecological Security Evaluation of an Underground Coal Mining Area Based on PSR and Extension Cloud Model
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    摘要:

    [目的] 综合评价山西省大同市某井工煤矿区的生态安全状况,为同类井工煤矿区生态保护提供科学依据。 [方法] 以该井工煤矿区2017—2021年的各项指标为依据,基于PSR模型从压力、状态以及响应3个方面构建煤矿区生态安全评价指标体系,使用合作博弈法确定组合权重系数,利用可拓云模型来分析该矿区生态安全状况。 [结果] 压力指标下人口自然增长率(C2)的评价等级为Ⅲ级,表明人口出生率和死亡率分布不均衡,其他指标评价等级均为Ⅱ级;状态指标下,植被覆盖率(C8)的评价等级为Ⅰ级,表明该煤矿区植被覆盖率高,尾矿库排洪排渗措施(C9)的评价等级为Ⅲ级,已经达到了不安全的等级,其他指标的评价等级均为Ⅱ级;在响应指标下废弃物综合利用率(C15)以及科研投入增长率(C20)为Ⅱ级,环保投资增长率(C19)为Ⅲ级,其他指标评价等级均为Ⅰ级。 [结论] 2017—2021年该井工煤矿区生态安全响应力度明显增强,但是生态压力以及目前的状态仍然严峻,应采取针对性地保护措施,从而维护当地的生态安全。

    Abstract:

    [Objective] The ecological security situation of a underground coal mining area in Datong City, Shanxi Province was comprehensively evaluated in order to provide a scientific basis for the ecological protection of the underground coal mining area. [Methods] Based on various indicators from the mining area from 2017 to 2021, an ecological security evaluation index system was constructed based on the three aspects of the PSR model (pressure, state, and response). The combined weight coefficient was determined by the cooperative game method, and the extension cloud model was used to analyze the ecological security situation of the mining area. [Results] Under the pressure index, the evaluation grade of natural population growth rate (C2) was level Ⅲ, indicating that the birth rate and death rate were not evenly distributed, and the evaluation grades of other indicators were all at level Ⅱ. Under the state index, the evaluation grade of vegetation coverage rate (C8) was at level Ⅰ, indicating that the coal mine area had a high vegetation coverage rate. The evaluation grade of tailings pond drainage measures (C9) was at level Ⅲ, having reached the unsafe level. The evaluation grades of other indicators were at level Ⅱ. Under the response indicators, the comprehensive utilization rate of waste (C15) and the growth rate of scientific research investment (C20) were at level Ⅱ. The growth rate of environmental protection investment (C19) was at level Ⅲ, and the evaluation grades of other indicators were at level Ⅰ. [Conclusion] From 2017 to 2021, the response to ecological security of this underground coal mining area had significantly enhanced, but the ecological pressure and the current state were still severe. Targeted protection measures should be taken to maintain the local ecological security.

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邢斐,李莎莎,崔铁军.基于PSR-可拓云模型的井工煤矿区生态安全评价[J].水土保持通报,2023,43(2):341-349

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  • 收稿日期:2022-05-11
  • 最后修改日期:2022-08-11
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  • 在线发布日期: 2023-06-01
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