Analysis on the coupling coordination of resource-environment-economy of coal industry: a case of Yulin City
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摘要: 耦合协调发展水平的测度对于研究煤炭工业可持续发展具有重要意义。根据煤炭工业资源-环境-经济系统耦合机制,构建了该系统的评价指标体系,利用熵权法和TOPSIS法计算煤炭工业资源-环境-经济系统以及各子系统的评价值,通过耦合协调度模型计算耦合协调度,评估煤炭工业的资源-环境-经济系统的耦合协调水平。结果表明:2008—2018年,榆林市煤炭工业资源-环境-经济系统综合评价值呈U型变化趋势,与环境子系统评价值变化趋势相似,有明显提升;煤炭工业资源-环境-经济系统耦合协调水平不断优化且均处于协调范围,呈现平稳—下降—上升的趋势,2018年耦合协调度为0.86,达到良好耦合协调水平。Abstract: The measurement of coupling coordination level is of great significance for the study of sustainable development of coal industry. According to the coupling mechanism of the resource-environment-economy (REE) system of coal industry, the evaluation index system was constructed. The evaluation values of coal industry REE system as well as that of each subsystem were calculated by entropy weight method and TOPSIS method. The coupling coordination degree was calculated by the coupling coordination degree model to evaluate the coupling coordination level of coal industry REE system. The results showed that the comprehensive evaluation value of coal industry REE system in Yulin City showed a "U" type trend, which was similar to the evaluation value of environment subsystem and had an obvious improvement. The coupling coordination level of coal industry REE system had been continuously optimized and was in the coordination range, showing a steady-downward-upward trend. The coupling coordination degree was 0.86 in 2018, reaching a good coupling coordination level.
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表 1 耦合协调度等级划分
Table 1. Classification of coupling coordination degree
耦合协调度
取值范围评价等级 耦合协调度
取值范围评价等级 [0.0,0.1] 极度失调 (0.5,0.6] 勉强协调 (0.1,0.2] 严重失调 (0.6,0.7] 初级协调 (0.2,0.3] 中度失调 (0.7,0.8] 中级协调 (0.3,0.4] 轻度失调 (0.8,0.9] 良好协调 (0.4,0.5] 濒临失调 (0.9,1.0] 优质协调 表 2 榆林市煤炭工业资源-环境-经济耦合协调评价指标及权重
Table 2. Evaluation index and weight of REE coupling coordination of coal industry in Yulin City
系统 子系统 指标层 指标性质 $ {w}_{j} $ 榆林市煤炭工业资源-环境-经济系统 资源 煤炭产量/万t + 0.06 洗煤产量/万t + 0.62 煤炭工业从业人数/万人 + 0.04 工业煤炭消费量/万t − 0.25 工业企业年末煤炭库存量/万t − 0.03 环境 煤炭工业废水排放量/万t − 0.19 煤炭工业化学需氧量排放量/t − 0.03 煤炭工业颗粒物排放量/t − 0.66 煤炭工业固体废物产生量/万t − 0.12 经济 煤炭工业总产值/亿元 + 0.25 煤炭工业固定资产投资/亿元 + 0.16 煤炭工业资产占工业总资产比例/% + 0.13 煤炭工业利润占工业总利润比例/% + 0.25 煤炭工业主营业务收入占工业主营业务收入比例/% + 0.10 煤炭工业—主营业务成本占工业主营业务成本比例/% − 0.08 煤炭工业资产负债率/% − 0.03 注:+ 表示正向指标; −表示负向指标。 -
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