Study On Optimal Allocation Of Coal Consumption From The Perspective Of Environmental Economics

Coal is the basic national energy in China,and has been providing a steady stream of power for China’s economic development.But at the same time,resource environment problems caused by a large number of coal consumption are more and more serious,and both the international carbon emissions constraints and regional air pollution constraints are increasingly tight.In this regard,China has put forward the total amount control of energy consumption and the cap control of coal consumption,and the key to the implementation of coal consumption cap plan is to quantify the distribution of coal consumption at the provincial level.Existing research on the quantitative allocation of coal consumption is just based on single pespective such as the land average method,the air quality constraint method or the coal consumption prediction method etc.,which is difficult to adapt to the requirements of coordinated development of environment and economy.From the perspective of energy-economy-enviroment(3E)system,the cap control target of the coal consumption and the optimal allocation plan at the provincial level in 2020 and 2030 in China have been researched innovatively based on the carbon emissions reduction constraint,air quality improvement constraint and economic growth constraint in this paper.The main contents and conclusions can be summarized as follows:1.The cap control target of the coal consumption at the national level.Mainly based on carbon emissions constraints,in accordance with the carbon emission intensity commitment target,the total coal consumption target has been determined.The total coal consumption control target in China can be identified as 4.2 billion tonnes in 2020(Consistent with policy planning value,more than 3.6 billion tonnes under air quality improvement constraints and less than 4.9 billion tonnes under economic growth constraints).And the target can be determinened as 5.2 billion tonnes in 2030(more than 2.8 billion tonnes under air quality improvement constraints and less than 5.8 billion tonnes under economic growth constraints).2.The initial distribution of provincial coal consumption According to the land average principle(the proportion of built-up area),the per capita principle(the proportion of resident population)and mixed index principle(weighted average),the provincial distribution of coal consumption has been determined.In the initial distribution of coal consumption,the land average principle is more favorable to the eastern region,and the per capita principle is more favorable to the central region.3.The provincial coal consumption allocation adjustment under environmental constraints and economic constraints.Based on the air quality improvement goals,the corresponding relationship between the regional air quality improvement target-air pollutants emission reduction-provincial coal consumption has been studied,and the distribution of coal consumption in 31 provinces under the air quality improvement goals has been determined.Based on economic development targets,according to the eastern,central and western regions of the three zoning in China,the relationship between the provincial economic growth and coal consumption has been studied.In the optimization adjustment,the air quality constraints on the eastern region can be more stringent,and the economic development constraints on the western region can be more relaxed.4.The comprehensive adjustment of regional coal consumoption.The distribution proportion under different constraints has been adjusted.and the relevant results of the provincial coal consumption allocation have been analyzed with different scenarios.From 2020 to 2030,the proportion allocation of coal consumption in the western region will be higher.The share of coal consumption in the eastern,central and western regions in China will be 38.59%,30.73%and 30.68%respectively in 2020.By 2030,this proportion will be 35.58%,31.06%and 33.36%respectively.5.The relevant policy recommendations.Based on the cap control of coal co:nsumption and the optimal allocation of provincial coal consumption,the energy development policies and supporting environmental economic policies have been put forward.Relevant policies should focus on the quantitative target allocation and assessment of coal control policy,and more policy support such as tax preferences,fiscal subsidies and financial policy concessions should be given to the western region.