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Environ Sci Technol. 2015 Nov 3;49(21):13021-30. doi: 10.1021/acs.est.5b01732. Epub 2015 Oct 16.

Spatiotemporal Changes of Built-Up Land Expansion and Carbon Emissions Caused by the Chinese Construction Industry.

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School of Geographic & Oceanographic Sciences, Nanjing University , Nanjing 210023, Jiangsu Province, China.
Land Development and Consolidation Technology, Engineering Center of Jiangsu Province , Nanjing 210023, Jiangsu Province, China.
Key Laboratory of Development and Protection for the Coastal Zone of the Ministry of Land and Resources, Nanjing 210023, Jiangsu Province, China.
School of Urban and Resources Sciences, Jinling College of Nanjing University , Nanjing 210089, Jiangsu Province, China.
North China University of Water Resources and Electric Power , Zhengzhou 450011, Henan Province, China.
Department of Geography, University of South Carolina , Columbia, South Carolina 29205, United States.


China is undergoing rapid urbanization, enlarging the construction industry, greatly expanding built-up land, and generating substantial carbon emissions. We calculated both the direct and indirect carbon emissions from energy consumption (anthropogenic emissions) in the construction sector and analyzed built-up land expansion and carbon storage losses from the terrestrial ecosystem. According to our study, the total anthropogenic carbon emissions from the construction sector increased from 3,905×10(4) to 103,721.17×10(4) t from 1995 to 2010, representing 27.87%-34.31% of the total carbon emissions from energy consumption in China. Indirect carbon emissions from other industrial sectors induced by the construction sector represented approximately 97% of the total anthropogenic carbon emissions of the sector. These emissions were mainly concentrated in seven upstream industry sectors. Based on our assumptions, built-up land expansion caused 3704.84×10(4) t of carbon storage loss from vegetation between 1995 and 2010. Cropland was the main built-up land expansion type across all regions. The study shows great regional differences. Coastal regions showed dramatic built-up land expansion, greater carbon storage losses from vegetation, and greater anthropogenic carbon emissions. These regional differences were the most obvious in East China followed by Midsouth China. These regions are under pressure for strong carbon emissions reduction.

[Indexed for MEDLINE]

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