Spatial distribution of black carbon emissions in China  

作　　者：ZHANG Nan QIN Yue XIE ShaoDong 

机构地区：[1]College of Environmental Sciences & Engineering, State Key Joint Laboratory of Environmental Simulation and Pollution Control, Peking University

出　　处：《Chinese Science Bulletin》2013年第31期3830-3839,共10页

基　　金：supported by the National Basic Research Program of China(2010CB955608)

摘　　要：Based on the official statistics,locally measured emission factors,and the vehicular emission factor model most suitable for China,we developed a black carbon(BC)emission inventory for 2008 in China and at a spatial resolution of 0.5°×0.5°.In 2008,the total BC emissions in China were 1604.94 Gg.Industry and the residential sector were the dominant contributors,estimated at 695.03Gg and 636.02 Gg of BC,respectively.Together,these two source types contributed 82.9% of the total emissions.Emissions from transportation were 194.63 Gg,accounting for 12.1% of the total.Since emission contributions from different sectors showed significant spatial diversity among the 31 administrative districts,we divided the districts into four categories:industry contribution district,residential contribution district,industry and residential contribution district,and transportation contribution district.As for energy consumption,coal and biofuel contributed 51.0% and 32.2%,respectively,of the total emissions.Spatially,BC emissions in China were unevenly distributed,higher in the east and lower in the west,corresponding to regional economic development and rural population density.High emission districts,covering 5.7% of the territory,contributed 41.2% of the total emissions.Shanxi,Hebei,Shandong,Henan,and Sichuan were the largest contributors to national BC emissions.Based on the official statistics, locally measured emission factors, and the vehicular emission factor model most suitable for China, we developed a black carbon （BC） emission inventory for 2008 in China and at a spatial resolution of 0.5~x0.5~. In 2008, the total BC emissions in China were 1604.94 Gg. Industry and the residential sector were the dominant contributors, estimated at 695.03 Gg and 636.02 Gg of BC, respectively. Together, these two source types contributed 82.9% of the total emissions. Emissions from transportation were 194.63 Gg, accounting for 12.1% of the total. Since emission contributions from different sectors showed significant spatial diversity among the 31 administrative districts, we divided the districts into four categories： industry contribu- tion district, residential contribution district, industry and residential contribution district, and transportation contribution district. As for energy consumption, coal and biofuel contributed 51.0% and 32.2%, respectively, of the total emissions. Spatially, BC emissions in China were unevenly distributed, higher in the east and lower in the west, corresponding to regional economic de- velopment and rural population density. High emission districts, covering 5.7% of the territory, contributed 41.2% of the total emissions. Shanxi, Hebei, Shandong, Henan, and Sichuan were the largest contributors to national BC emissions.

关 键 词：空间分布 碳排放 中国 排放量 机动车排放 空间分辨率 排放因子 排放清单 

分 类 号：X51[环境科学与工程—环境工程]