Research On Calculation And Influencing Factors Of Provincial Carbon Dioxide Emission Across China's Construction Industry

Research shows that,50% of the total energy consumption in developing countries is closely related to the construction industry and the indirect carbon dioxide emission of C hina's construction industry is larger than any other industries.The construction industry's end products has a strong pulling effect of carbon dio xide of other industries,so the construction industry becomes C hina's focus of emission reduction.Therefore,from the industry relevance and terminal consumer perspective,this thesis measured related carbon dioxide emissions in C hina's provincial construction industry and analyzed influence factors,in order to provide evidence for knowing provinces' situations,making different reduction targets of construction carbon dioxide emissions for different provinces and cities.The result also provided direction for emissions reduction technology research.The research object of this thesis is provincial construction carbon dioxide emissions.The discharge coefficient method was selected to measure the direct carbon dioxide emissions and suitable C hina's carbon oxidation rate was used in this thesis in order to improve the accuracy of the results.O n the basis of the results,the method of input-output was applied in this thesis to introduce complete consumption coefficients of construction industry to other industries in different provinces and cities.The construction industry related carbon dioxide emissions model was built for calculation and then the industry association analysis of construction industry was made.Based on the life cycle theory of building materials,this thesis built the construction industry related carbon dioxide emissions model and compared the calculation results with the results of the input-output method.From views of the construction itself and construction industry relevance,this thesis analyzed the measuring result and compared the advantages,disadvantages and applicability of two methods.Some indexs were introduced to reflect the characteristics of construction industry,such as the construction area,and the STIRPAT model was expanded.After that,the multivariate linear regression was used to fit the data and the ridge regression was used to correct the influence of multicollinearity.At last,this thesis analyzed the influence factors of the construction industry related carbon dioxide emissions from the perspective of population,economic and technology.The results show that,the difference between related carbon dioxide emissions of different provinces and cities is obvious.In the energy consumption structure of direct carbon dioxide emissions,the petroleum and the coal contribute 63% and 36% respectively.The ratio of indirect carbon dioxide emissions of different provinces are higher than 80% and the emissions of cement and steel's production process are huge.Input-output method has higher accuracy in industry relevance and terminal consumer's regional affiliate.All of total population,consumption ability,per capita disposable income,energy structure,energy intensity and scale effect have impacts on carbon dioxide emissions.Among them,consumption ability has a negative impact and the rest of the factors have positive influence.Total population,consumption ability and per capita disposable income's effects are larger.What else,the impact of energy intensity is relatively larger in the influence of technical factors.