Research on the coupled and coordinated development of economy-environment-carbon emission in forestry resource-based city under the goal of carbon peaking and carbon neutrality: a case study of Yichun City
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摘要:
实现碳达峰、碳中和目标是我国近年来提出的重大战略决策,是引领我国绿色低碳发展的重要目标,可以带来环境质量改善和产业进步等多重效应。以我国典型的林业资源型城市——伊春市为研究对象,建立经济-环境-碳排放评价指标体系并运用熵值法和耦合协调度模型测算伊春市2010—2020年经济发展、环境质量和碳排放水平的耦合协调关系。结果表明:伊春市经济发展与环境质量总体呈上升趋势,但碳排放量和强度不断增加,整体由经济滞后型发展转变至环境和碳排放滞后型发展;伊春市耦合协调水平持续上升,由严重失调衰退发展至中级协调发展,环境和碳排放子系统需要加强改善。最后,从着力解决突出环境问题、强化节能增效和循环经济、大力发展林业经济、积极探索创新碳汇产品价值实现机制等方面出发,提出实现经济高质量发展目标的建议。
Abstract:Achieving the goal of carbon peaking and carbon neutrality is a significant strategic decision put forward by China in recent years. It is an important objective leading China's green and low-carbon development, which can bring multiple effects, such as improving environmental quality and advancing industries. Taking Yichun, a typical forestry resource-based city in China, as an example, an economic-environment-carbon emission evaluation indicator system was established and the entropy method and a coupling coordination model were used to calculate the coupling coordination relationship between economic development, environmental quality and carbon emission in Yichun from 2010 to 2020. The results showed that the economic development and environmental quality of Yichun showed an upward trend, but the carbon emissions and intensity increased greatly, and the overall development pattern shifted from the economy lagging to the environmental and carbon emissions lagging. The level of coupling coordination in Yichun had been consistently improving, progressing from severe imbalance and declining development to intermediate coordinated development, and the environmental and carbon emission subsystems needed to be strengthened. Finally, suggestions were proposed to achieve the goal of high-quality economic development, focusing on solving outstanding environmental problems, strengthening energy conservation and efficiency and circular economy, vigorously developing the forestry economy and actively exploring innovative mechanisms of carbon sink product value realization.
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表 1 经济-环境-碳排放系统耦合协调评价指标体系
Table 1. Economic-environment-carbon emission system coupling coordination evaluation index system
子系统 一级指标 二级指标 属性 权重 经济
(0.330)发展状况
(0.371)人均地区生产总值(GDP) 正向 0.111 城镇人均可支配收入 正向 0.130 农村人均可支配收入 正向 0.130 发展潜力
(0.629)第三产业增加值占GDP的比例 正向 0.155 研究与试验发展(R&D)经费投入 正向 0.306 林业产业总产值 正向 0.168 环境
(0.514)环境质量
(0.444)地表水达到或好于Ⅲ类水体比例 正向 0.070 单位耕地面积化肥使用折纯量 负向 0.098 单位耕地面积农药使用量 负向 0.052 空气质量优良天数比例 正向 0.102 森林覆盖率 正向 0.122 环境压力
(0.556)单位GDP二氧化硫排放量 负向 0.144 单位GDP氮氧化物排放量 负向 0.127 单位GDP烟尘(粉尘)排放量 负向 0.117 单位GDP化学需氧量(COD)排放 负向 0.079 单位GDP氨氮排放量 负向 0.089 碳排放
(0.156)二氧化碳排放量 负向 0.183 单位GDP二氧化碳排放量 负向 0.180 能源消耗总量 负向 0.276 单位GDP能源消耗总量 负向 0.178 煤炭消费占比 负向 0.183 表 2 耦合度和耦合协调度等级划分
Table 2. Classification of coupling degree and coupling coordination degree
参数 范围 等级 耦合度(C) (0, 0.3] 低水平耦合 (0.3, 0.5] 拮抗阶段 (0.5, 0.8] 磨合阶段 (0.8, 1) 高水平耦合 $1$ 良性共振耦合 耦合协调度(D) [0, 0.1) 极度失调衰退 [0.1, 0.2) 严重失调衰退 [0.2, 0.3) 中度失调衰退 [0.3, 0.4) 轻度失调衰退 [0.4, 0.5) 濒临失调衰退 [0.5, 0.6) 勉强协调发展 [0.6, 0.7) 初级协调发展 [0.7, 0.8) 中级协调发展 [0.8, 0.9) 良好协调发展 [0.9, 1] 优质协调发展 表 3 伊春市2010—2020年经济-环境-碳排放耦合协调关系
Table 3. Coupling and coordination relationship of economic-environment-carbon emission system of Yichun during 2010-2020
年份 经济评价指数 环境评价指数 碳排放评价指数 综合评价指数 耦合度 耦合类型 耦合协调度 耦合协调类型 2010 0.0001 0.299 0.589 0.246 0.088 低水平耦合 0.147 严重失调衰退 2011 0.099 0.364 0.668 0.324 0.767 磨合阶段 0.498 濒临失调衰退 2012 0.170 0.444 0.641 0.384 0.871 高水平耦合 0.578 勉强协调发展 2013 0.362 0.439 0.756 0.463 0.951 高水平耦合 0.664 初级协调发展 2014 0.285 0.370 0.800 0.409 0.904 高水平耦合 0.608 初级协调发展 2015 0.345 0.341 0.884 0.427 0.899 高水平耦合 0.620 初级协调发展 2016 0.467 0.487 0.722 0.517 0.980 高水平耦合 0.712 中级协调发展 2017 0.775 0.650 0.754 0.707 0.997 高水平耦合 0.840 良好协调发展 2018 0.808 0.810 0.511 0.763 0.978 高水平耦合 0.864 良好协调发展 2019 0.771 0.550 0.279 0.580 0.920 高水平耦合 0.731 中级协调发展 2020 0.969 0.664 0.221 0.696 0.845 高水平耦合 0.767 中级协调发展 -
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