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Observed Effects of Vegetation Growth on Temperature in the Early Summer over the Northeast China Plain
Li, Xiaxiang1; Zhang, Xuezhen2,3; Zhang, Lijuan1
2017-06-01
Source PublicationATMOSPHERE
ISSN2073-4433
Volume8Issue:6Pages:11
Corresponding AuthorZhang, Xuezhen(xzzhang@igsnrr.ac.cn)
AbstractThe effect of vegetation on temperature is an emerging topic in the climate science community. Existing studies have mostly examined the effects of vegetation on daytime temperature (T-max), whereas this study investigates the effects on nighttime temperature (T-min). Ground measurements from 53 sites across northeastern China (NEC) from 1982 to 2006 show that early summer (June) T-max and T-min increased at mean rates of approximately 0.61 degrees C/10 year and 0.67 degrees C/10 year, respectively. Over the same period, the satellite-based Normalized Difference Vegetation Index (NDVI) decreased by approximately 0.10 (accounting for 18% of the climatological NDVI for 1982-1991). It is highlighted that a larger increase in T-max (T-min) co-occurred spatially with a larger (smaller) decrease in NDVI. Deriving from such spatial co-occurrences, we found that the spatial variability of changes in T-max (i.e., Delta T-max) is negatively correlated with the spatial variability of changes in NDVI (i.e., Delta NDVI), while the spatial variability of changes in T-min (i.e., Delta T-min) is positively correlated (r(2) = 0.10; p < 0.05) with that of Delta NDVI. Similarly, we detected significant positive correlations between the spatial variability of Delta NDVI and the change in surface latent heat flux (r(2) = 0.16; p < 0.01) and in surface air specific humidity (r(2) = 0.28; p < 0.001). These findings on the spatial co-occurrences suggest that the vegetation growth intensifies the atmospheric water vapor through evapotranspiration, which enhances the atmospheric downward longwave radiation and strengthens the greenhouse warming effects at night. Thereby, the positive correlation between Delta NDVI and Delta T-min is better understood. These results indicate that vegetation growth may not only exert effects on daytime temperature but also exert warming effects on nighttime temperature by increasing atmospheric water vapor and thus intensifying the local greenhouse effect. This study presents new observation evidence of the effects of vegetation on local temperature.
Keywordvegetation growth warming/cooling effects northeastern China evapotranspiration greenhouse effect
DOI10.3390/atmos8060097
WOS KeywordCLIMATE ; FEEDBACKS ; MECHANISM ; TRENDS ; IMPACT ; INDEX ; RANGE ; NDVI
Indexed BySCI
Language英语
Funding ProjectChina Global Change Research Program from the Ministry of Science and Technology of China[2014CB954301] ; National Natural Science Foundation of China[41471171] ; National Natural Science Foundation of China[41271217] ; Youth Innovation Promotion Association CAS[2015038] ; Kezhen Outstanding Young Scholars from IGSNRR[2015RC101]
Funding OrganizationChina Global Change Research Program from the Ministry of Science and Technology of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Kezhen Outstanding Young Scholars from IGSNRR
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000404381900005
PublisherMDPI AG
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/62966
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhang, Xuezhen
Affiliation1.Harbin Normal Univ, Key Lab Remote Sensing Monitoring Geog Environm, Harbin 150025, Peoples R China
2.Chinese Acad Sci, Key Lab Land Surface Pattern & Simulat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Xiaxiang,Zhang, Xuezhen,Zhang, Lijuan. Observed Effects of Vegetation Growth on Temperature in the Early Summer over the Northeast China Plain[J]. ATMOSPHERE,2017,8(6):11.
APA Li, Xiaxiang,Zhang, Xuezhen,&Zhang, Lijuan.(2017).Observed Effects of Vegetation Growth on Temperature in the Early Summer over the Northeast China Plain.ATMOSPHERE,8(6),11.
MLA Li, Xiaxiang,et al."Observed Effects of Vegetation Growth on Temperature in the Early Summer over the Northeast China Plain".ATMOSPHERE 8.6(2017):11.
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