甘肃省煤矿区生态修复的差异产业化路径与价值实现机制

    Differentiated industrialization path and value realization mechanism of ecological restoration in coal mining areas of Gansu Province

    • 摘要: 黄河上游甘肃段横跨黄土、荒漠、高寒三类典型生态脆弱单元,煤炭开采诱发塌陷、土地沙化、冻土退化等差异化生态损伤,传统均质修复模式难以匹配区域承载力约束。本文以吴传钧教授的人地关系地域系统理论为支撑,构建胁迫-调适-协同矿山全生命周期人地耦合分析框架,采用AHP-熵权组合赋权多指标综合法测算人地耦合指数,划定0.3、0.6两级系统跃迁量化阈值;选取陇东华亭、河西靖远、祁连山天祝三大典型煤矿集群开展实证,严格按照“胁迫损伤诊断-人工修复干预-产业化路径”统一逻辑分区构建差异化修复路径,从实物交易、生态权益、多元投融资、利益共享四维拆解生态产品价值实现体系。结果表明:人地耦合指数呈陇东>河西>祁连山梯度分异;陇东依托高阈值形成固废循环+农光农林碳汇复合模式,河西受水资源约束打造节水光伏固废一体化模式,祁连山严守生态红线仅布局轻量化生态补偿配套产业。当前甘肃省内矿山修复存在分区专用修复技术储备不足、生态产品交易体系缺失、社会资本引入渠道狭窄、全周期动态监管缺位等现实短板。研究从分区技术研发、差异化管控标准、绿色金融扩容、全周期阈值监测四个维度提出优化对策,可为西北同类生态脆弱矿区绿色矿山建设、矿业低碳转型提供量化理论支撑与落地实践参考。

       

      Abstract: The upper reaches of the Yellow River in Gansu cover three typical ecologically fragile units including loess plateau, arid desert and alpine mountainous areas. Coal mining induces differentiated ecological damages such as mining subsidence, desertification and permafrost degradation, and the traditional homogeneous restoration model cannot match regional carrying capacity constraints. Supported by professor WU Chuanjun’s human-land areal system theory, this paper constructs a full-life-cycle human-land coupling analytical framework of mines including disturbance, regulation and coordination. The AHP-entropy combined weighting multi-index comprehensive method is adopted to calculate the human-land coupling index, and two quantitative transition thresholds of 0.3 and 0.6 are defined. Three typical coal mining clusters(Huating in Eastern Gansu, Jingyuan in Hexi Corridor and Tianzhu in Qilian Mountains) are selected for empirical research. Differentiated restoration paths are constructed for each zone under the unified logic of “damage diagnosis under disturbance-artificial restoration intervention- industrialization implementation”. The value realization system of ecological products is decomposed from four dimensions: physical commodity transaction, ecological rights trading, diversified investment and financing, and benefit sharing. The results show that the human-land coupling carrying capacity presents a gradient differentiation of Eastern Gansu > Hexi Corridor > Qilian Mountains. Relying on a high coupling threshold, Eastern Gansu forms a composite model of solid waste recycling, agro-photovoltaic complementary and carbon sink industry. Restricted by water resources, Hexi Corridor develops an integrated water-saving model combining agriculture-photovoltaic-forestry-carbon sink integrated model and solid waste disposal. Strictly abiding by ecological red lines, Qilian Mountains only arranges lightweight supporting industries based on ecological compensation. At present, mine restoration in Gansu is confronted with practical shortcomings such as insufficient reserve of zoned special restoration technologies, incomplete trading system of ecological products, narrow channels for introducing social capital and lack of full-cycle dynamic supervision. Optimization countermeasures are put forward from four dimensions: zoned technology research and development, differentiated control standards, expansion of green finance and full-cycle threshold monitoring. This study can provide quantitative theoretical support and practical references for green mine construction and low-carbon transformation of mining industry in similar ecologically fragile mining areas of Northwest China.

       

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