煤炭矿区复合生态系统资源代谢评价

Assessments of resource metabolism of integrated ecosystem in coal mining area

为研究煤炭矿区复合生态系统资源代谢水平,运用物质流分析方法及能值分析方法,构建了煤炭矿区复合生态系统资源流结构图;提出资源输入、资源利用、环境胁迫、循环利用四阶段的资源代谢评价指标体系;建立资源代谢模糊综合评价模型,应用改进的层次分析法确定各指标权重.选择辽宁铁法大隆煤炭矿区为研究对象,进行实证研究.研究结果表明:大隆煤矿资源代谢处于较低水平,其中,资源输入量较大,资源利用效率较低;大隆煤矿开发煤炭资源对污染物排放量较大,对环境污染与胁迫较重;资源循环利用水平较低,引发一系列环境及生态问题,给出了提高资源代谢机能的建议.

In order to study resource metabolism level of complex ecosystem in coal mining area,this paper constructed the resource flow structure diagram of the integrated ecosystem in coal mining area by using the material flow analysis method and energy analysis method,and put forward the evaluation index system of resource metabolism with four stages of resource input,resource utilization,environmental stress and recycling.The fuzzy comprehensive evaluation model of resource metabolism is established,and the weight of each index is determined by the improved analytic hierarchy process.Taking the Tiefa Dalong coal mining area in Liaoning as the research object,an empirical study was conducted.The results of study show that the resource metabolism of Dalong coal mine is at a lower level,in which the input of resources is large and the utilization efficiency of resources is low.The development of coal resources in Dalong coal mine has a large discharge of pollutants,and it is heavy on environmental pollution and stress.The level of resource recycling is low which triggers a series of environmental and ecological problems.Suggestions for improving the metabolic function of resources are given.