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Increased Surface Broadband Emissivity Driven by Denser Vegetation on the Tibetan Plateau Grassland Area

文献类型：期刊论文

作者Liu, Yaojie1,2,3,4; Zhang, Yangjian2,3,5; Huang, Ke2; Zu, Jiaxing2,3; Chen, Ning2,3; Cong, Nan2
刊名JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING
出版日期2020-10-16
页码15
关键词Vegetation feedbacks Alpine Elevation Energy balance NDVI
ISSN号0255-660X
DOI10.1007/s12524-020-01195-4
通讯作者Cong, Nan(congnan@igsnrr.ac.cn)
英文摘要Global changes are profoundly affecting the global terrestrial ecosystems, especially for the vegetation. Simultaneously, the affected vegetation gives feedback to the climates. The Tibetan Plateau (TP), one of the most sensitive areas to global changes, has undergone extraordinary changes on its ecosystem processes. In the multitudinous land surface ecosystem processes affecting the climate, the process of land surface energy balance affecting by vegetation activity is one of the most important and still has not been well recognized. The spatial and temporal patterns of the broadband emissivity (BBE) on the TP and its relations to the vegetation activity and land surface temperature were examined in this research. We find that elevated BBE is regulated by increasing vegetation activity for grasslands over the TP from 2000 to 2015. The spatial patterns of BBE and its interannual changes are highly correlated with vegetation activity. The BBE changing rate generally declines along rising elevation, due to the shrunk effects from vegetation activity. A greater sensitivity of BBE to vegetation activity occurs in the sparse vegetation area or high elevation zone than in the dense vegetation area or low elevation zone. Increasing BBE has a cooling effect on the land surface, especially at night. This cooling effect is related to wind speed. The growing season BBE trend as regulated by vegetation activity highlights the importance to take mounting notice of the growing season long-wave energy fluxes of surface energy balance studies in the future.
WOS关键词THERMAL-INFRARED EMISSIVITY ; LONGWAVE RADIATION ; PRIMARY PRODUCTIVITY ; CLIMATE CHANGES ; GROWING-SEASON ; GREEN-UP ; MODIS ; IMPACT ; SOIL ; HEAT
资助项目Strategic Priority Research of the Chinese Academy of Sciences[XDA19070303] ; Science and Technology Major Project of the Tibet Autonomous Region[Z2016C01G01/01]
WOS研究方向Environmental Sciences & Ecology ; Remote Sensing
语种英语
WOS记录号WOS:000578415000002
出版者SPRINGER
资助机构Strategic Priority Research of the Chinese Academy of Sciences ; Science and Technology Major Project of the Tibet Autonomous Region
源URL[http://ir.igsnrr.ac.cn/handle/311030/157141]  
专题中国科学院地理科学与资源研究所
通讯作者Cong, Nan
作者单位1.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Lhasa Plateau Ecosyst Res Stn, Beijing 100101, Peoples R China
3.Chinese Acad Sci, Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100090, Peoples R China
4.Nanjing Univ, Int Inst Earth Syst Sci, Nanjing 210023, Peoples R China
5.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Yaojie,Zhang, Yangjian,Huang, Ke,et al. Increased Surface Broadband Emissivity Driven by Denser Vegetation on the Tibetan Plateau Grassland Area[J]. JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING,2020:15.
APA Liu, Yaojie,Zhang, Yangjian,Huang, Ke,Zu, Jiaxing,Chen, Ning,&Cong, Nan.(2020).Increased Surface Broadband Emissivity Driven by Denser Vegetation on the Tibetan Plateau Grassland Area.JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING,15.
MLA Liu, Yaojie,et al."Increased Surface Broadband Emissivity Driven by Denser Vegetation on the Tibetan Plateau Grassland Area".JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING (2020):15.

入库方式： OAI收割

来源：地理科学与资源研究所

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