Low Carbon Economy Efficiency Assessment And Investment Strategy Analysis Of China's Construction Industry

With the stable development of the national economy and society,more and more environmental problems are becoming increasingly prominent.Greenhouse gas emissions are increasing,air pollution,water pollution and other issues are still difficult to solve,the phenomenon of haze is increasingly prominent,which is seriously harmful to people's living environment and not conducive to social sustainable development.As a comprehensive industry,the construction industry is one of the major carbon emissions sectors in China.In order to reduce the energy and environmental pressures of the construction industry,the government of China has put forward higher requirements for the development of the construction industry.In this paper,a non-radial DEA model is used to evaluate the performance of the economy and environment of the 30 provinces in China during the period from 2008 to 2012.This paper summarizes the macro development of China's construction industry in the past five years.The results show that Beijing's construction industry economy and environmental efficiency is the highest,while Hebei,Shandong and Hubei's construction industry economic and environmental efficiency are the lowest from 2008 to 2012.On this basis,the paper analyzes the investment strategy of 30 provinces in the future by using the dual model of the DEA model.The conclusion indicates that the best investment strategy in Liaoning,Shanghai and Guangdong is to take reasonable measures to expand the scale of investment;the best investment strategy in Jiangsu,Heilongjiang,Xinjiang,Jilin,Zhejiang,Anhui and Henan is to maintain the current investment scale;the best investment strategy in Shaanxi,Inner Mongolia,Fujian and Hunan province is to maintain the current investment scale on the basis of reasonable adjustment of the investment structure;the best strategy in Beijing,Jiangxi,Guangxi,Hainan,Qinghai,Ningxia,Chongqing,,Sichuan and Yunnan Province is to control the size of the current construction investment,to avoid unreasonable development;the best investment strategy of Hebei,Shandong,Hubei,Shanxi,Tianjin,Guizhou and Gansu province is to adjust the investment structure as the key work,and increase investment in technological progress and energy saving and emission reduction.Finally,this paper puts forward the feasible measures for the development of construction industry in China.First,the government should use the advanced energysaving emission reduction technology and materials;second,the government should establish the incentive mechanism of low carbon development in the construction industry;third,the government should encourage the advanced technology of energy saving and emission reduction technology,technology into application;fourth,enterprises should reduce carbon emissions of building materials products,promote the use of energy-saving low carbon building materials;fifth,enterprises should vigorously develop green building and energy saving building.In addition,the government should also take responsibility for the construction of energy-saving emission reduction work,to ensure that all local enterprises to fulfill the task of emission reduction and implementation of the local emission reduction standards,to ensure that the construction industry to take the road of sustainable development.