Study On Clean Heating Efficiency Of Rural Residents In Xinzhou City Under Double Carbon Background

In northern provinces,the coal-based heating method of rural households in winter is one of the important reasons affecting regional air quality and environment.In order to implement the"Action Plan for Air Pollution Prevention and Control",Shanxi Province and other regions have promoted the large-scale implementation of clean heating projects.The emission reduction effect and economic cost brought by clean heating are not clear,the carbon emission situation is unknown,whether it promotes the integration of economic and environmental benefits,and whether it can promote carbon emission reduction is not clear.Therefore,using remote sensing and field investigation methods,this study took Xinzhou City as an example to explore the carbon emission of clean heating for farmers and residents and the effect of pollutant emission reduction under the background of double carbon,and analyzed the economic costs brought by this.The results show that in 2016,rural residents in Xinzhou City consumed100.0×10⁴t of coal,PM₁₀,PM_2.5,SO₂ and NO_x emissions were 8820.0t,6860.0t,7400.0t and 1600.0t,respectively.After the transformation,PM₁₀,PM_2.5,SO₂ were reduced by29.5%,23.5%and 24.8%respectively,while NO_x increased by 32.9%.After the reconstruction,rural residents need to pay 11.41×10⁸ yuan per year,which is 1.17×10⁸yuan more than before the reconstruction,and the government subsidy is 3.28×10⁸ yuan per year.After the reconstruction,the heating cost of rural residents has increased by4.45×10⁸ yuan compared with before the reconstruction.After the transformation,CO₂emission is 1.5 times of that before the transformation.In order to increase the representativity of emission reduction effect after the implementation of clean heating policy in Xinzhou City,the calculation of emission reduction effect of mountain villages was added.Through setting three scenarios,the following conclusions were drawn:In scenario 1,15.8×10⁴t of thermal coal is consumed,and 6.7×10⁴t of domestic coal is consumed.After the transformation,the total emission of PM₁₀,PM_2.5,SO₂ and NO_x is615.5t,532.2t,561.9t and 241.3t,respectively.The reduction rates of PM₁₀,PM_2.5,SO₂and NO_x were 47.7%,41.9%,43.1%and-13%respectively.In scenario 2,31.7×10⁴t of thermal coal is consumed,and 8.9×10⁴t of domestic coal is consumed.After the transformation,the total emission of PM₁₀,PM_2.5,SO₂ and NO_x is 838.6t,759.2t,794.5t,411.4t,PM₁₀,PM_2.5,SO₂,respectively.The NO_x reduction rates were 57.3%,50.3%,51.7%and-15.6%,respectively.In scenario 3,50.6×10⁴t of thermal coal is consumed,and 5.3×10⁴t of domestic coal is consumed.The total emission of PM₁₀,PM_2.5,SO₂ and NO_x is 557t,604.3t,612.8t and 515.9t,respectively.The reduction rates of PM₁₀,PM_2.5,SO₂ and NO_x were 76.3%,67%,69%and-20.8%respectively.As for the calculation of CO₂ emission,it is 5.8×10⁵t,10.4×10⁵t and 14.3×10⁵t in the three scenarios.From the perspective of emission reduction benefits,three scenarios of mountain villages were added to evaluate the environmental comprehensive rate of return.The results show that with the increase of penetration rate and occupancy rate,the environmental comprehensive rate of return increases in a positive trend.However,the large-scale implementation of clean heating will bring significant pollutant emission reduction effect but also cause the increase of CO₂ emissions,which is not conducive to the peak of carbon should be paid attention to;From the economic point of view,the average heating cost of a household after the central heating and the coal-to-electricity transformation is greater than that before the transformation.Although the investment expenditure of the government increases year by year,the funds allocated to clean heating subsidies are not much.In addition,even if there are subsidies,they will bring certain economic burdens to rural residents.If the withdrawal policy of financial subsidies no longer implements heating subsidies for rural residents,the greater economic pressure may cause some residents to use coal for daily use,which will bring pollution pressure to the atmosphere environment.Finally,based on the above problems in the implementation process of clean heating policy,this paper puts forward targeted policy suggestions,in order to provide scientific reference for the subsequent implementation of clean heating policy.