Abstract
With accelerating urbanization, building sector has been becoming more important source of China’s total carbon emission. In this paper, we try to calculate the life-cycle carbon emission, analyze influencing factors of carbon emission, and assess the delinking index of carbon emission in China’s building sector. The results show: (i) Total carbon emission in China’s building industry increase from 984.69 million tons of CO2 in 2005 to 3753.98 million tons of CO2 in 2013. The average annual growth rate is 18.21% per year. Indirect carbon emission from building material consumption accounted to 96–99% of total carbon emission. (ii) The indirect emission intensity effect was leading contributor to change of carbon emission. The following was economic output effects, which always contributed to increase in carbon emission. Energy intensity effect and energy structure effect took negligible role to offset carbon emission. (iii) Delinking index show the status between carbon emission and economic output in China’s building industry during 2005–2006 and 2007–2008 was weak decoupling; during 2006–2007 and during 2008–2010 was expansive decoupling; and during 2010–2013 was expansive negative decoupling.
Highlights
According to National Economical Industry Classification (GB/T4754-2012) [1], the building industry includes: construction of buildings, civil engineering, renovation and decoration four categories
The sources of carbon emissions are distinguished as two scopes: (i) direct emissions, which refer to the CO2 emissions from the consumption of energy of building industry; and (ii) indirect emissions, which refer to CO2 emissions from the consumption of construction materials
Buildings accounted for 32% of total global final energy use, 19% of energy-related GHG emissions, 51% of global electricity consumption, 33% of black carbon emissions, and an eighth to a third of F-gases emission [2,3,4]
Summary
According to National Economical Industry Classification (GB/T4754-2012) [1], the building industry includes: construction of buildings, civil engineering, renovation and decoration four categories. In order to strengthen the administration of energy conservation, improve the efficiency of energy utilization and improve the quality of indoor thermal environment, the Ministry of construction has formulated the regulations in accordance with the relevant laws and regulations These measures are formulated for the purpose of standardizing the work of green building evaluation and marking and guiding the healthy development of green buildings. Green construction refers to the construction of the project, in ensuring the quality, safety and other basic requirements under the premise of scientific management and technological progress, to maximize the resources and reduce the negative impact on the construction activities of the environment to achieve energy saving, land, water, Materials and environmental protection This Ordinance is to strengthen the management of civil building energy conservation, reduce energy consumption in the use of civil buildings, improve energy efficiency. “Management Method of National Supervision and Random Inspection of Product Quality”
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