Evaluation and coupling coordination analysis of high quality development of China's coal industry: Empirical research based on data from 2000 to 2019
-
摘要: 本文从经济效益、创新发展、集约发展、安全发展、绿色发展和高效发展6个维度构建了煤炭工业高质量发展评价指标体系,通过熵权法、理想点法(TOPSIS)和耦合协调度模型测度并深入分析了我国煤炭工业2000—2019年的高质量发展状况。结果表明:煤炭工业高质量发展成效显著,但产业规模与高质量发展水平呈现明显的不同步现象;在不同的发展阶段,煤炭工业高质量发展的主动力和“短板”有所不同;煤炭工业高质量发展的6个维度在研究期内均有不同程度上的提升,但绿色发展和高效发展的提升速度相对较慢;煤炭工业6维度发展耦合协调度稳定上升,但尚未进入“优质协调发展”阶段,协调发展水平有待提升。Abstract: This paper constructs an evaluation index system for high-quality development of coal industry from six dimensions: economic benefits, innovative development, intensive development, safe development, green development and efficient development.The high-quality development of China's coal industry from 2000 to 2019 is measured and analyzed in depth by entropy method, TOPSIS method and coupling coordination model.The results show that the high-quality development of the coal industry has achieved significant achievement, but the industrial scale is obviously out of sync with the high-quality development level.The main motivation and "short board" of high-quality development of the coal industry is significantly different in different stages of development.The six dimensions of high-quality development of the coal industry have been improved to varying degrees during the research period, but the speed of green development and high-efficiency development is relatively low.The coupling and coordination degree of the six-dimensional development of the coal industry has steadily increased, but has not yet entered the stage of "high-quality coordinated development"and the level of coordinated development needs to be improved.
-
Key words:
- entropy-weighted approach /
- TOPSIS /
- coupling coordination /
- coal industry /
- high-quality development
-
表 1 煤炭工业高质量发展水平评价体系
Table 1. Evaluation system for high quality development level of coal industry
一级指标 二级指标 序号 三级指标 单位 指标属性 经济效益 偿债能力 1 总资产负债率=负债总额/资产总额 % - 盈利能力 2 成本费用利润率=利润总额/成本费用总额 % + 3 总资产利润率=利润总额/资产平均总额 % + 创新发展 创新投入 4 研发经费投入强度=研究与开发(R & D)经费支出/主营业务收入 % + 5 研发人员投入强度=研发员工数量/员工总数 % + 创新成果 6 人均有效发明专利数=有效发明专利数/研发人员数量 项/人 + 7 新产品开发投入产出比=新产品销售收入/新产品开发经费支出 % + 集约发展 产能集约 8 产能集约指数=大型煤矿产量/原煤总产量 % + 产业集约 9 产业集中度=大中型企业主营业务收入/规模以上企业主营业务收入 % + 安全发展 生产安全 10 煤矿百万吨死亡率=因工死亡的职工人数/原煤生产量(百万吨) 人/百万吨 - 11 煤炭百万吨员工数=煤炭工业员工数/原煤总产量 人/吨 - 职业健康 12 矿工尘肺病比重=矿工尘肺病病例数/职业性尘肺病病例数 % - 绿色发展 绿色生产 13 废水排放率=废水排放量/原煤总产量 % - 14 固体废弃物排放率=固体废弃物产生量/原煤总产量 % - 15 废气排放率=废气排放量/原煤总产量 % - 16 吨原煤生产综合能耗=能源消耗总量/原煤总产量 千克标准煤/吨 - 绿色治理 17 矿山治理资金投入比重=矿山恢复治理资金投入/主营业务收入 % + 绿色利用 18 煤层气(煤矿瓦斯)利用率=煤层气利用量/煤层气生产量 % + 19 矿井水利用率=矿井水利用量/矿井水产生量 % + 20 煤矸石利用率=煤矸石利用量/煤矸石生产量 % + 21 原煤入选率=入选原煤量/原煤产出量 % + 高效发展 资本效率 22 吨煤成本=主营业务成本/原煤总产量 元/吨 - 劳动效率 23 全员劳动工效=原煤生产量/员工总数 吨/人 + 技术效率 24 大型煤炭企业采煤机械化程度=机械装备采出煤量/原煤总产量 % + 注:“+”表示正向指标,“-”表示逆向指标。 表 2 耦合协调度(D)等级划分
Table 2. Classification of coupling coordination degree (D)
区间 耦合协调度(D) 协调等级 不可接受区间 (0,0.1] 极度失调衰退型 (0.1,0.2] 重度失调衰退型 (0.2,0.3] 中度失调衰退型 (0.3,0.4] 轻度失调衰退型 过渡区间 (0.4,0.5] 濒临失调衰退型 (0.5,0.6] 勉强协调发展型 可接受区间 (0.6,0.7] 初级协调发展型 (0.7,0.8] 中级协调发展型 (0.8,9] 良好协调发展型 (0.9,1] 优质协调发展型 表 3 2000—2019年煤炭工业高质量发展指数
Table 3. High quality development index of coal industry from 2000 to 2019
年份 煤炭工业综合发展指数 年份 煤炭工业综合发展指数 2000 0.212 2 2010 0.301 8 2001 0.154 3 2011 0.302 6 2002 0.157 0 2012 0.312 3 2003 0.182 1 2013 0.267 7 2004 0.204 8 2014 0.299 9 2005 0.219 4 2015 0.385 5 2006 0.221 8 2016 0.467 8 2007 0.231 3 2017 0.562 3 2008 0.287 4 2018 0.711 7 2009 0.284 9 2019 0.820 0 表 4 煤炭工业分维度发展阶段和变化
Table 4. Changes in the development stages of coal industry in different dimensions
发展阶段 指数 经济效益 创新发展 集约发展 安全发展 绿色发展 高效发展 第一阶段
(2000—2012年)期初值 0.023 5 0.156 2 0.045 7 0.137 4 0.315 3 0.469 0 期末值 0.649 8 0.204 0 0.689 5 0.757 9 0.479 2 0.276 8 年均增长率/% 31.88 2.25 25.37 15.29 3.55 -4.30 第二阶段
(2013—2016年)期初值 0.649 8 0.204 0 0.689 5 0.757 9 0.479 2 0.276 8 期末值 0.196 9 0.453 1 0.886 3 0.779 8 0.571 0 0.463 8 年均增长率/% -25.80 22.07 6.48 0.72 4.48 13.78 第三阶段
(2017—2019年)期初值 0.196 9 0.453 1 0.886 3 0.779 8 0.571 0 0.463 8 期末值 0.489 3 0.932 5 0.936 9 0.848 7 0.668 4 0.756 1 年均增长率/% 35.44 27.20 1.87 2.86 5.39 17.69 研究期
(2000—2019年)期初值 0.023 5 0.156 2 0.045 7 0.137 4 0.315 3 0.469 0 期末值 0.489 3 0.932 5 0.936 9 0.848 7 0.668 4 0.756 1 年均增长率/% 17.33 9.86 17.23 10.06 4.03 2.55 表 5 2000—2019年煤炭工业6维度发展耦合协调水平及类型
Table 5. The level and type of coupling coordination of six dimensions development of coal industry from 2000 to 2019
年份 耦合度(C) 耦合协调度(D) 耦合发展类型 2000 0.641 6 0.379 7 轻度失调衰退型 2001 0.781 4 0.376 9 轻度失调衰退型 2002 0.835 8 0.407 5 濒临失调衰退型 2003 0.867 5 0.471 4 濒临失调衰退型 2004 0.864 0 0.519 0 勉强协调发展型 2005 0.830 2 0.532 7 勉强协调发展型 2006 0.856 3 0.552 3 勉强协调发展型 2007 0.815 9 0.550 9 勉强协调发展型 2008 0.814 4 0.592 1 勉强协调发展型 2009 0.857 7 0.629 7 初级协调发展型 2010 0.832 2 0.628 1 初级协调发展型 2011 0.837 1 0.622 8 初级协调发展型 2012 0.898 2 0.643 0 初级协调发展型 2013 0.870 6 0.616 4 初级协调发展型 2014 0.866 8 0.628 1 初级协调发展型 2015 0.774 6 0.623 4 初级协调发展型 2016 0.901 9 0.697 4 初级协调发展型 2017 0.972 0 0.791 6 中级协调发展型 2018 0.975 1 0.825 7 良好协调发展型 2019 0.976 3 0.829 7 良好协调发展型 -
[1] 黄庆华, 时培豪, 胡江峰. 产业集聚与经济高质量发展: 长江经济带107个地级市例证[J]. 改革, 2020(1): 87-99. https://www.cnki.com.cn/Article/CJFDTOTAL-REFO202001007.htmHuang Qinghua, Shi Peihao, Hu Jiangfeng. Industrial agglomeration and high-quality economic development: examples of 107 prefecture-level cities in the Yangtze River economic belt[J]. Reform, 2020(1): 87-99. https://www.cnki.com.cn/Article/CJFDTOTAL-REFO202001007.htm [2] 刘思明, 张世瑾, 朱惠东. 国家创新驱动力测度及其经济高质量发展效应研究[J]. 数量经济技术经济研究, 2019, 36(4): 3-23. https://www.cnki.com.cn/Article/CJFDTOTAL-SLJY201904001.htmLiu Siming, Zhang Shijin, Zhu Huidong. Study on the measurement and high-quality economy development effect of national innovation driving force[J]. The Journal of Quantitative & Technical Economic, 2019, 36(4): 3-23. https://www.cnki.com.cn/Article/CJFDTOTAL-SLJY201904001.htm [3] 张军扩. 加快形成推动高质量发展的制度环境[J]. 中国发展观察, 2018(1): 5-8. doi: 10.3969/j.issn.1673-033X.2018.01.002Zhang Junkuo. Accelerating the formation of an institutional environment for high-quality development[J]. China Development Observation, 2018(1): 5-8. doi: 10.3969/j.issn.1673-033X.2018.01.002 [4] 陈诗一, 陈登科. 雾霾污染、政府治理与经济高质量发展[J]. 经济研究, 2018, 53(2): 20-34. https://www.cnki.com.cn/Article/CJFDTOTAL-JJYJ201802003.htmChen Shiyi, Chen Dengke. Air pollution, government regulations and high-quality economic development[J]. Economic Research Journal, 2018, 53(2): 20-34. https://www.cnki.com.cn/Article/CJFDTOTAL-JJYJ201802003.htm [5] Huang X H, Cai B Q, Li Y L. Evaluation index system and measurement of high-quality development in China[J]. Revista De Cercetare Si Interventie Sociala, 2020, 68: 163-178. doi: 10.33788/rcis.68.11 [6] Sun Y F, Ma A B, Su H R, et al. Does the establishment of development zones really improve industrial land use efficiency? Implications for China's high-quality development policy[J]. Land Use Policy, 2020, 90: 104265. doi: 10.1016/j.landusepol.2019.104265 [7] 张瑞, 王格宜, 孙夏令. 财政分权、产业结构与黄河流域高质量发展[J]. 经济问题, 2020(9): 1-11. https://www.cnki.com.cn/Article/CJFDTOTAL-JJWT202009002.htmZhang Rui, Wang Geyi, Sun Xialing. Fiscal decentralization, industrial structure and high-quality development of the Yellow River Basin[J]. On Economic Problems, 2020(9): 1-11. https://www.cnki.com.cn/Article/CJFDTOTAL-JJWT202009002.htm [8] 王一鸣. 大力推动我国经济高质量发展[J]. 人民论坛, 2018(9): 32-34. doi: 10.3969/j.issn.1004-3381.2018.09.012Wang Yiming. Promoting high quality development of China's economy[J]. Peoples Tribune, 2018(9): 32-34. doi: 10.3969/j.issn.1004-3381.2018.09.012 [9] 金碚. 关于"高质量发展"的经济学研究[J]. 中国工业经济, 2018(4): 5-18. https://www.cnki.com.cn/Article/CJFDTOTAL-GGYY201804004.htmJin Bei. Study on the " High-quality development" economics[J]. China Industrial Economics, 2018(4): 5-18. https://www.cnki.com.cn/Article/CJFDTOTAL-GGYY201804004.htm [10] 程虹. 如何衡量高质量发展[N]. 第一财经日报, 2018-03-14(A11). [11] 冯俏彬. 我国经济高质量发展的五大特征与五大途径[J]. 中国党政干部论坛, 2018(1): 59-61. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGDZ201801019.htmFeng Qiaobin. Five characteristics and five ways of high quality economic development in China[J]. Chinese Cadres Tribe, 2018(1): 59-61. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGDZ201801019.htm [12] 刘友金, 周健. "换道超车": 新时代经济高质量发展路径创新[J]. 湖南科技大学学报: 社会科学版, 2018, 21(1): 49-57. https://www.cnki.com.cn/Article/CJFDTOTAL-XTGS201801010.htmLiu Youjin, Zhou Jian. Lane changing: the path innovation of high-quality economic development in a new era[J]. Journal of Hunan University of Science & Technology: Social Science Edition, 2018, 21(1): 49-57. https://www.cnki.com.cn/Article/CJFDTOTAL-XTGS201801010.htm [13] 钞小静, 薛志欣. 新时代中国经济高质量发展的理论逻辑与实践机制[J]. 西北大学学报: 哲学社会科学版, 2018, 48(6): 12-22. https://www.cnki.com.cn/Article/CJFDTOTAL-XBDS201806002.htmChao Xiaojing, Xue Zhixin. Research on the theoretical logic and practical mechanism of high quality of China's economic development in the new era[J]. Journal of Northwest University: Philosophy and Social Sciences Edition, 2018, 48(6): 12-22. https://www.cnki.com.cn/Article/CJFDTOTAL-XBDS201806002.htm [14] Chen L M, Ye W Z, Huo C J, et al. Environmental regulations, the industrial structure, and high-quality regional economic development: evidence from China[J]. Land, 2020, 9(12): 517. doi: 10.3390/land9120517 [15] Du J G, Zhang J, Li X W. What is the mechanism of resource dependence and high-quality economic development? an empirical test from China[J]. Sustainability, 2020, 12(19): 8144. doi: 10.3390/su12198144 [16] Li Z D, Yang W P, Wang C J, et al. Guided high-quality development, resources, and environmental forcing in China's green development[J]. Sustainability, 2019, 11(7): 1936. doi: 10.3390/su11071936 [17] Wang R, Feng Y. Research on China's ecological welfare performance evaluation and improvement path from the perspective of high-quality development[J]. Mathematical Problems in Engineering, 2020: 1-14. http://www.researchgate.net/publication/339440872_Research_on_China's_Ecological_Welfare_Performance_Evaluation_and_Improvement_Path_from_the_Perspective_of_High-Quality_Development [18] 魏敏, 李书昊. 新时代中国经济高质量发展水平的测度研究[J]. 数量经济技术经济研究, 2018, 35(11): 3-20. https://www.cnki.com.cn/Article/CJFDTOTAL-SLJY201811001.htmWei Min, Li Shuhao. Study on the measurement of economic high-quality development level in China in the new era[J]. The Journal of Quantitative & Technical Economics, 2018, 35(11): 3-20. https://www.cnki.com.cn/Article/CJFDTOTAL-SLJY201811001.htm [19] 马茹, 罗晖, 王宏伟, 等. 中国区域经济高质量发展评价指标体系及测度研究[J]. 中国软科学, 2019(7): 60-67. doi: 10.3969/j.issn.1002-9753.2019.07.006Ma Ru, Luo Hui, Wang Hongwei, et al. Study of evaluating high-quality economic development in Chinese regions[J]. China Soft Science, 2019(7): 60-67. doi: 10.3969/j.issn.1002-9753.2019.07.006 [20] 师博, 任保平. 中国省际经济高质量发展的测度与分析[J]. 经济问题, 2018(4): 1-6. https://www.cnki.com.cn/Article/CJFDTOTAL-JJWT201804001.htmShi Bo, Ren Baoping. A measurement of China's provincial economic high quality development[J]. On Economic Problems, 2018(4): 1-6. https://www.cnki.com.cn/Article/CJFDTOTAL-JJWT201804001.htm [21] 简新华, 聂长飞. 中国高质量发展的测度: 1978—2018[J]. 经济学家, 2020(6): 49-58. https://www.cnki.com.cn/Article/CJFDTOTAL-JJXJ202006006.htmJian Xinhua, Nie Changfei. Measurement of China's high-quality development: 1978—2018[J]. Economist, 2020(6): 49-58. https://www.cnki.com.cn/Article/CJFDTOTAL-JJXJ202006006.htm [22] 李梦欣, 任保平. 新时代中国高质量发展指数的构建、测度及综合评价[J]. 中国经济报告, 2019(5): 49-57. doi: 10.3969/j.issn.1673-3788.2019.05.005Li Mengxin, Ren Baoping. Construction, measurement and comprehensive evaluation of China's high quality development index in the new era[J]. China Policy Review, 2019(5): 49-57. doi: 10.3969/j.issn.1673-3788.2019.05.005 [23] 王国法, 刘峰, 庞义辉, 等. 煤矿智能化——煤炭工业高质量发展的核心技术支撑[J]. 煤炭学报, 2019, 44(2): 349-357. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB201902002.htmWang Guofa, Liu Feng, Pang Yihui, et al. Coal mine intellectualization: The core technology of high quality development[J]. Journal of China Coal Society, 2019, 44(2): 349-357. https://www.cnki.com.cn/Article/CJFDTOTAL-MTXB201902002.htm [24] Liu X J, Luan H B. A brief analysis of the circumstances of the current coal industry and its trends in China[J]. International Journal of Mining and Mineral Engineering, 2015, 6(1): 87. doi: 10.1504/IJMME.2015.067953 [25] Liu J, Liu H F, Yao X L, et al. Evaluating the sustainability impact of consolidation policy in China's coal mining industry: a data envelopment analysis[J]. Journal of Cleaner Production, 2016, 112: 2969-2976. doi: 10.1016/j.jclepro.2015.08.011 [26] 王双明. 对我国煤炭主体能源地位与绿色开采的思考[J]. 中国煤炭, 2020, 46(2): 11-16. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGME202002003.htmWang Shuangming. Thoughts about the main energy status of coal and green mining in China[J]. China Coal, 2020, 46(2): 11-16. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGME202002003.htm [27] Li L, Lei Y L, Wu S M, et al. Study on the coordinated development of economy, environment and resource in coal-based areas in Shanxi Province in China: Based on the multi-objective optimization model[J]. Resources Policy, 2018, 55: 80-86. doi: 10.1016/j.resourpol.2017.10.017 [28] Si H, Bi H P, Li X H, et al. Environmental evaluation for sustainable development of coal mining in Qijiang, Western China[J]. International Journal of Coal Geology, 2010, 81(3): 163-168. doi: 10.1016/j.coal.2009.11.004 [29] Wang D L, Wan K D, Yang J Y. Measurement and evolution of eco-efficiency of coal industry ecosystem in China[J]. Journal of Cleaner Production, 2019, 209: 803-818. doi: 10.1016/j.jclepro.2018.10.266 [30] Pan L Y, Liu P, Ma L W, et al. A supply chain based assessment of water issues in the coal industry in China[J]. Energy Policy, 2012, 48: 93-102. doi: 10.1016/j.enpol.2012.03.063 [31] 李小炯. 我国煤炭资源清洁高效利用现状及对策建议[J]. 煤炭经济研究, 2019, 39(1): 71-75. https://www.cnki.com.cn/Article/CJFDTOTAL-MTJN201901014.htmLi Xiaojiong. Status and countermeasures of clean and efficient utilization of coal resources in China[J]. Coal Economic Research, 2019, 39(1): 71-75. https://www.cnki.com.cn/Article/CJFDTOTAL-MTJN201901014.htm [32] Zhang Y J, Feng G R, Zhang M, et al. Residual coal exploitation and its impact on sustainable development of the coal industry in China[J]. Energy Policy, 2016, 96: 534-541. doi: 10.1016/j.enpol.2016.06.033 [33] Wang G F, Xu Y X, Ren H W. Intelligent and ecological coal mining as well as clean utilization technology in China: Review and prospects[J]. International Journal of Mining Science and Technology, 2019, 29(2): 161-169. doi: 10.1016/j.ijmst.2018.06.005 [34] 杨洋, 祁娇, 张冉. 基于污染治理视角的洁净煤燃烧技术的经济效益和环境效益分析[J]. 矿业科学学报, 2016, 1(3): 291-298. https://www.cnki.com.cn/Article/CJFDTOTAL-KYKX201603013.htmYangYang, Qi Jiao, Zhang Ran. Analysis of economic and environmental benefits of clean coal technology in the perspective of the pollution of control[J]. Journal of Mining Science and Technology, 2016, 1(3): 291-298. https://www.cnki.com.cn/Article/CJFDTOTAL-KYKX201603013.htm [35] 袁亮. 我国煤炭工业高质量发展面临的挑战与对策[J]. 中国煤炭, 2020, 46(1): 6-12. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGME202001003.htmYuan Liang. Challenges and countermeasures for high quality development of Chinas coal industry[J]. China Coal, 2020, 46(1): 6-12. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGME202001003.htm [36] Dzonzi-Undi J, Li S X. SWOT analysis of safety and environmental regulation for China and USA: its effect and influence on sustainable development of the coal industry[J]. Environmental Earth Sciences, 2015, 74(8): 6395-6406. doi: 10.1007/s12665-015-4751-6 [37] 宋曦, 丁文梅, 宁云才, 等. 煤矿安全生产管理体系优化研究: 以陕西某煤矿为例[J]. 矿业科学学报, 2019, 4(2): 187-194. https://www.cnki.com.cn/Article/CJFDTOTAL-KYKX201902012.htmSong Xi, Ding Wenmei, Ning Yuncai, et al. Research on the optimization of coal mine safety production management system—take a coal mine in Shaanxi as an example[J]. Journal of Mining Science and Technology, 2019, 4(2): 187-194. https://www.cnki.com.cn/Article/CJFDTOTAL-KYKX201902012.htm [38] 包兴. 煤炭行业两化融合发展现状和趋势分析[J]. 煤炭经济研究, 2019, 39(7): 74-78. https://www.cnki.com.cn/Article/CJFDTOTAL-MTJN201907016.htmBao Xing. Analysis on the status and trend of the integration of informatization and industrialization in the coal industry[J]. Coal Economic Research, 2019, 39(7): 74-78. https://www.cnki.com.cn/Article/CJFDTOTAL-MTJN201907016.htm [39] 王雷, 吴璘. 新时代我国煤炭产业高质量发展初探[J]. 煤炭经济研究, 2018, 38(10): 11-17. https://www.cnki.com.cn/Article/CJFDTOTAL-MTJN201810004.htmWang Lei, Wu Lin. Research on the high-quality development of Chinas coal industry in the new era[J]. Coal Economic Research, 2018, 38(10): 11-17. https://www.cnki.com.cn/Article/CJFDTOTAL-MTJN201810004.htm [40] 王旭东. 我国煤炭行业高质量发展指标体系及基本路径研究[J]. 中国煤炭, 2020, 46(2): 22-27. doi: 10.3969/j.issn.1674-1803.2020.02.05Wang Xudong. Study on high quality development index system and basic path of coal industry in China[J]. China Coal, 2020, 46(2): 22-27. doi: 10.3969/j.issn.1674-1803.2020.02.05 [41] 孙喜民. 煤炭工业高质量发展方略研究与实践[J]. 煤炭工程, 2019, 51(1): 152-156. https://www.cnki.com.cn/Article/CJFDTOTAL-MKSJ201901035.htmSun Ximin. Research and practice on high quality development strategy of coal industry[J]. Coal Engineering, 2019, 51(1): 152-156. https://www.cnki.com.cn/Article/CJFDTOTAL-MKSJ201901035.htm [42] 牛克洪. 煤炭企业转型高质量发展的着力点研究[J]. 煤炭经济研究, 2017, 37(12): 57-62. https://www.cnki.com.cn/Article/CJFDTOTAL-MTJN201712013.htmNiu Kehong. Study on key points to accurately hold high quality development of coal enterprise transformation[J]. Coal Economic Research, 2017, 37(12): 57-62. https://www.cnki.com.cn/Article/CJFDTOTAL-MTJN201712013.htm [43] 李浩荡, 张庆华, 朱拴成, 等. 新时代我国煤炭产业高质量发展路径研究[J]. 煤炭经济研究, 2019, 39(5): 72-76. https://www.cnki.com.cn/Article/CJFDTOTAL-MTJN201905013.htmLi Haodang, Zhang Qinghua, Zhu Shuancheng, et al. Research on the high quality development path of China s coal industry in the new era[J]. Coal Economic Research, 2019, 39(5): 72-76. https://www.cnki.com.cn/Article/CJFDTOTAL-MTJN201905013.htm [44] 李惠云. 新时代我国煤炭行业高质量发展路径探讨[J]. 中国煤炭, 2019, 45(10): 22-26. doi: 10.3969/j.issn.1006-530X.2019.10.006Li Huiyun. Discussion on the high-quality development path of Chinas coal industry in the new era[J]. China Coal, 2019, 45(10): 22-26. doi: 10.3969/j.issn.1006-530X.2019.10.006 [45] 宋晓波, 杨涛, 宋晓锋. 新时代下煤炭行业高质量发展策略研究[J]. 煤炭工程, 2018, 50(12): 163-167. https://www.cnki.com.cn/Article/CJFDTOTAL-MKSJ201812042.htmSong Xiaobo, Yang Tao, Song Xiaofeng. Research on high quality development strategy of coal industry in new era[J]. Coal Engineering, 2018, 50(12): 163-167. https://www.cnki.com.cn/Article/CJFDTOTAL-MKSJ201812042.htm [46] Hao X G, Song M, Feng Y N, et al. De-capacity policy effect on China's coal industry[J]. Energies, 2019, 12(12): 2331. doi: 10.3390/en12122331 [47] Gao Z G. Sustainable development and upgrading mode of coal industry in China[J]. International Journal of Mining Science and Technology, 2012, 22(3): 335-340. doi: 10.1016/j.ijmst.2012.04.009 [48] Li J, Hu S Y. History and future of the coal and coal chemical industry in China[J]. Resources, Conservation and Recycling, 2017, 124: 13-24. doi: 10.1016/j.resconrec.2017.03.006 [49] 刘闯. 煤炭高质量发展内涵与现代化煤炭工业体系研究[J]. 煤炭经济研究, 2020, 40(4): 76-81. https://www.cnki.com.cn/Article/CJFDTOTAL-MTJN202004013.htmLiu Chuang. Research on the connotation of high-quality development of coal and modern coal industry system[J]. Coal Economic Research, 2020, 40(4): 76-81. https://www.cnki.com.cn/Article/CJFDTOTAL-MTJN202004013.htm [50] 魏倩倩, 薛晔. 中国能源技术经济高质量发展的指标体系研究[J]. 煤炭经济研究, 2020, 40(8): 64-72. https://www.cnki.com.cn/Article/CJFDTOTAL-MTJN202008009.htmWei Qianqian, Xue Ye. Research on the index system of China's energy technology and economic high-quality development[J]. Coal Economic Research, 2020, 40(8): 64-72. https://www.cnki.com.cn/Article/CJFDTOTAL-MTJN202008009.htm