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Causative impact of air pollution on evapotranspiration in the North China Plain
Yao, Ling1,2
2017-10-01
Source PublicationENVIRONMENTAL RESEARCH
ISSN0013-9351
Volume158Pages:436-442
Corresponding AuthorYao, Ling(yaoling@lreis.ac.cn)
AbstractAtmospheric dispersion conditions strongly impact air pollution under identical surface emissions. The degree of air pollution in the Jing-Jin-Ji region is so severe that it may impose feedback on local climate. Reference evapotranspiration (ET0) plays a significant role in the estimation of crop water requirements, as well as in studies on climate variation and change. Since the traditional correlation analysis cannot capture the causality, we apply the convergent cross mapping method (CCM) in this study to observationally investigate whether the air pollution impacts ET0. The results indicate that southwest regions of Jing-Jin-Ji always suffer higher PM2.5 concentration than north regions through the whole year, and correlation analysis suggests that PM2.5 concentration has a significant negative effect on ET in most cities. The causality detection with CCM quantitatively demonstrates the significantly causative influence of PM2.5 concentration on ET0, higher PM2.5 concentration decreasing ET0. However, CCM analysis suggests that PM2.5 concentration has a relatively weak causal influence on ET while the correlation analysis gives the near zero correlation coefficient in Zhangjiakou city, indicating that the causative influence of PM2.5 concentration on ET is better revealed with CCM method than the correlation analysis. Considering that ET0 is strongly associated with crop water requirement, the amount of water for agricultural irrigation could be reduced at high PM2.5 concentrations. These findings can be utilized to improve the efficiency of water resources utilization, and reduce the exploiting amount of groundwater in the Jing-Jin-Ji region, although PM2.5 is detrimental to human health.
KeywordPM2.5 concentration Reference evapotranspiration Causality detection Correlation analysis Agricultural irrigation
DOI10.1016/j.envres.2017.07.007
WOS KeywordMETEOROLOGICAL PARAMETERS ; SOURCE APPORTIONMENT ; PM2.5 ; AEROSOL ; CITIES ; ECOSYSTEMS ; POLLUTANTS ; MORTALITY ; CAUSALITY ; ERROR
Indexed BySCI
Language英语
Funding ProjectNational Earth System Science Data Sharing Infrastructure[2005DKA32300] ; National Science & Technology Infrastructure of China[CKCEST-2016-1-10] ; National Earth System Science Data Sharing Infrastructure ; National Natural Science Foundation of China[41301380] ; Young Talents Training Fund of State Key Laboratory of Resources and Environment Information System of China[O8R8B6E0YA] ; National Science & Technology Infrastructure of China
Funding OrganizationNational Earth System Science Data Sharing Infrastructure ; National Science & Technology Infrastructure of China ; National Earth System Science Data Sharing Infrastructure ; National Natural Science Foundation of China ; Young Talents Training Fund of State Key Laboratory of Resources and Environment Information System of China ; National Science & Technology Infrastructure of China
WOS Research AreaEnvironmental Sciences & Ecology ; Public, Environmental & Occupational Health
WOS SubjectEnvironmental Sciences ; Public, Environmental & Occupational Health
WOS IDWOS:000408184700048
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/61586
Collection中国科学院地理科学与资源研究所
Corresponding AuthorYao, Ling
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
2.Nanjing Normal Univ, Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Yao, Ling. Causative impact of air pollution on evapotranspiration in the North China Plain[J]. ENVIRONMENTAL RESEARCH,2017,158:436-442.
APA Yao, Ling.(2017).Causative impact of air pollution on evapotranspiration in the North China Plain.ENVIRONMENTAL RESEARCH,158,436-442.
MLA Yao, Ling."Causative impact of air pollution on evapotranspiration in the North China Plain".ENVIRONMENTAL RESEARCH 158(2017):436-442.
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