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Carbon emissions from Industrial Sectors in China:Driving Factors and the potential for emission reduction

Journal of Resources and Ecology 2013年第2期4卷 132-140页

作者：国涓刘长信孙平东北财经大学数学与数量经济学院大连116025 东北财经大学经济计量分析与预测研究中心大连116025 山推工程机械股份有限公司济宁272073 东北财经大学管理科学与工程学院大连116025

We use the refined Laspeyres index decomposition method to determine the main CO2 emissions from industry and analyze differences in these over the period 1994-2007. Then we examined the decoupling state between carbon emissions and economic growth and the effectiveness of the implementation of emission reduction policy. We found that output effect is the dominant positive factor for carbon emissions growth in China＇s industrial sectors, and the effect of energy intensity change is the mainfactor affecting carbon emission reductions; the impact of these two factors is respectively 357.20% and -248.67%. The food industry, textile industry and machinery industry show a decreasing trend in emissions, and emissions from the oil industry increased by 217.75%. From 1994 to 2007 and 2000 to 2007, the decoupling index of carbon emissions and the industrial sector was 0.63 and 0.56 respectively. This indicates carbon emissions and economic growth are in a weak decoupling state, and emission reduction policies lack efficacy. These findings can be used in the design of policy priorities for improving decoupling across industrial sectors.

关键词： CO2 emission factors decomposition decoupling emission reduction potential

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CH_4 emissions and reduction potential in wastewater treatment in China

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Advances in Climate Change Research 2015年第3期6卷 216-224页

作者： MA Zhan-Yun FENG Peng GAO Qing-Xian LU Yan-Na LIU Jun-Rong LI Wen-Tao Chinese Research Academy of Environmental Sciences China Center for Resource Satellite Data and Applications College of Forestry Gansu Agricultural University

The treatment of domestic and industrial wastewater is one of the major sources of CH_4 in the Chinese waste sector. On the basis of statistical data and country-specific emission factors, using IPCC methodology, the characteristics of CH_4 emissions from wastewater treatment in China were analyzed. The driving factors of CH_4 emissions were studied, and the emission trend and reduction potential were predicted and analyzed according to the current situation. Results show that in 2010, CH_4 emissions from the treatment of domestic and industrial wastewater were0.6110 Mt and 1.6237 Mt, respectively. Eight major industries account for more than 92% of emissions, and CH_4 emissions gradually increased from 2005 to 2010. From the controlling management scenario, we predict that in 2020, CH_4 emissions from the treatment of domestic and industrial wastewater will be 1.0136 Mt and 2.3393 Mt, respectively, and the reduction potential will be 0.0763 Mt and 0.2599 Mt, *** 2010 to 2020, CH_4 emissions from the treatment of domestic and industrial wastewater will increase by 66% and 44%, respectively.

关键词： Domestic and industrial wastewater CH4 emissions reduction scenario emission reduction potential

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Environmental impact assessment of China’s primary aluminum based on life cycle assessment

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Transactions of Nonferrous Metals Society of China 2019年第8期29卷 1784-1792页

作者： Yi YANG Yao-qi GUO Wen-song ZHU Jian-bai HUANG School of Business Central South University Changsha 410083 China School of Mathematics and Statistics Central South University Changsha 410083 China Institute of Metal Resources Strategy Central South University Changsha 410083 China

Assessing and accounting for material consumption and environmental impact are necessary to measure environmental externalities of the aluminum industry and to construct an ecological *** this research,life cycle assessment(LCA)theory was used to assess the environmental impact of primary aluminum based on the lime soda Bayer process and different power generation modes,and the sources and distributions of the four selected impact categories were *** results show that,(1)Negative environmental impact of aluminum industry generally occurs from alumina extraction,carbon anode fabrication and electrolysis,particularly electrolysis and alumina *** energy demand(PED),water use(WU),global warming potential(GWP)and freshwater eutrophication potential(FEP)are main environmental impact categories.(2)The environmental load with thermal power is higher than that with hydropower,e.g.,for the former,the greenhouse gas emission coefficient of 21800 kg CO2 eq/t(Al)will be generated,while for the latter,4910 kg CO2 eq/t(Al)will be generated.(3)Both power mode methods reflect the energy structure,whereas direct emissions reflect the technical level,indicating the potential for large energy savings and emission reductions,and some policies,related to clean power,energy efficiency and technological progress,should be made for emission reduction.

关键词： primary aluminum environmental impact life cycle assessment emission reduction potential

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