程潮铁矿区采动影响生态风险空间分异研究

Research of Exploitation Impacts on Ecological Risk Special Differentiation in Chengchao Iron Mine Area

基于风险源影响度、生态脆弱度和生态损失度建立矿区生态风险空间评价模型,厘清了矿区生态风险的内在本质。借助采动破坏相关理论中崩落带、移动带和保护带的划分来表征地下采动对地表生态受体的影响,并制定了生态脆弱度和损失度表征方法,为地下采动生态风险评估提供了一条值得参考的途径。程潮铁矿实证研究表明,评价结果符合矿区实际情况,对矿区生态风险防范具有一定指导意义。

In this paper, based on risk sources impacts degree, ecological vnlnerability and loss, the spatial evaluation model of mine area ecological risk is established and the intrinsic qualities of mine area ecological risk is figured out. The research takes exploitation impacts of ecological risk assessment in Chengchao Iron Mine area as the case and the impacts of the underground exploitation on the surface ecological receptors are characterized by the aid of division method of caving zone, moving zone and protection zone in correlative theories of exploitation and destruction. The presentations of ecological vulnerability index and ecological loss index are also formulated, which can provide an advisable approach for ecological risk assessment of underground exploitation. The study shows that the assessment results agree with the practical circumstances, providing some directions for ecological risk prevention in similar mine area.