气候变化领域集成服务门户(CCPortal): Temporal variations of local traffic CO2 emissions and its relationship with CO2 flux in Beijing; China

CCPortal

DOI	10.1016/j.trd.2018.10.007
	Temporal variations of local traffic CO2 emissions and its relationship with CO2 flux in Beijing; China
	Li Y.; Zheng J.; Dong S.; Wen X.; Jin X.; Zhang L.; Peng X.
发表日期	2019
ISSN	13619209
起始页码	1
结束页码	15
卷号	67
英文摘要	Cities are the main source of CO2. Traffic is one of the most important sources of CO2 emissions in urban areas. One-year CO2 flux and 36-days traffic flow data were collected by field monitoring in 2014 at the study area. The accurate traffic CO2 emissions on 30-min scale were calculated by the localized MOVES model. The annual emissions were 4139.19 Mg. The traffic CO2 emissions showed a “double-peak” diurnal pattern, with morning peak of 705.14 kg 30 min−1 (8:00–8:30) and the evening peak of 788.40 kg/30 min−1 (7:30–18:00). The tail number limited measure in Beijing has reached certain extent, with emissions by limited tail number as follows: 1 or 6 (11.03 Mg/d) < 3 or 8 (11.88 Mg/d) < 4 or 9 (12.13 Mg/d) < 2 or 7 (12.32 Mg/d) < 5 or 0 (12.57 Mg/d). The approach to exploring the relationship with traffic CO2 emissions and CO2 flux is modified from the perspective of spatial boundary definition and unit unification. Traffic CO2 emissions had significantly positive effects on the CO2 flux. The absolute values of the standard coefficients were in the following order: for the whole year in 2014, temperature (−0.316) > radiation (−0.152) > traffic CO2 emissions (0.107); for the plant growing season, radiation (−0.254) > temperature (−0.130) > traffic CO2 emissions (0.105). © 2018 Elsevier Ltd
英文关键词	CO2 flux; Local scale; Temporal variation; Traffic CO2 emissions
scopus关键词	Carbon dioxide; Beijing , China; Boundary definition; CO2 emissions; CO2 fluxes; Diurnal pattern; Field monitoring; Local scale; Temporal variation; Magnesium compounds; annual variation; atmospheric pollution; carbon dioxide; carbon emission; seasonal variation; spatiotemporal analysis; traffic emission; Beijing [Beijing (ADS)]; Beijing [China]; China
来源期刊	Transportation Research Part D: Transport and Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176502
作者单位	The Institute of Geographic Sciences and Natural Resources Research, The Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China; China Academy of Transportation Sciences, Beijing, 100029, China
推荐引用方式 GB/T 7714	Li Y.,Zheng J.,Dong S.,et al. Temporal variations of local traffic CO2 emissions and its relationship with CO2 flux in Beijing; China[J],2019,67.
APA	Li Y..,Zheng J..,Dong S..,Wen X..,Jin X..,...&Peng X..(2019).Temporal variations of local traffic CO2 emissions and its relationship with CO2 flux in Beijing; China.Transportation Research Part D: Transport and Environment,67.
MLA	Li Y.,et al."Temporal variations of local traffic CO2 emissions and its relationship with CO2 flux in Beijing; China".Transportation Research Part D: Transport and Environment 67(2019).