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Magnitude and Forming Factors of Mass Elevation Effect on Qinghai-Tibet Plateau
Zhang Shuo1,2; Zhang Baiping1; Yao Yonghui1; Zhao Fang1,2; Qi Wenwen1,2; He Wenhui1,2; Wang Jing1,2
2016-12-01
Source PublicationCHINESE GEOGRAPHICAL SCIENCE
ISSN1002-0063
Volume26Issue:6Pages:745-754
Corresponding AuthorZhang Baiping(zhangbp@lreis.ac.cn) ; Yao Yonghui(yaoyh@lreis.ac.cn)
AbstractMass elevation effect (MEE) refers to the thermal effect of huge mountains or plateaus, which causes the tendency for temperature-related montane landscape limits to occur at higher elevations in the inner massifs than on their outer margins. MEE has been widely identified in all large mountains, but how it could be measured and what its main forming-factors are still remain open. This paper, supposing that the local mountain base elevation (MBE) is the main factor of MEE, takes the Qinghai-Tibet Plateau (QTP) as the study area, defines MEE as the temperature difference (Delta T) between the inner and outer parts of mountain massifs, identifies the main forming factors, and analyzes their contributions to MEE. A total of 73 mountain bases were identified, ranging from 708 m to 5081 m and increasing from the edges to the central parts of the plateau. Climate data (1981-2010) from 134 meteorological stations were used to acquire Delta T by comparing near-surface air temperature on the main plateau with the free-air temperature at the same altitude and similar latitude outside of the plateau. The Delta T for the warmest month is averagely 6.15 degrees C, over 12 degrees C at Lhatse and Baxoi. A multivariate linear regression model was developed to simulate MEE based on three variables (latitude, annual mean precipitation and MBE), which are all significantly correlated to Delta T. The model could explain 67.3% of MEE variation, and the contribution rates of three independent variables to MEE are 35.29%, 22.69% and 42.02%, respectively. This confirms that MBE is the main factor of MEE. The intensive MEE of the QTP pushes the 10. isotherm of the warmest month mean temperature 1300-2000 m higher in the main plateau than in the outer regions, leading the occurrence of the highest timberline (4900 m) and the highest snowline (6200 m) of the Northern Hemisphere in the southeast and southwest of the plateau, respectively.
KeywordQinghai-Tibet Plateau mass elevation effect (MEE) temperature difference mountain base elevation timberline
DOI10.1007/s11769-016-0834-x
WOS KeywordMOUNTAINS ; PATTERNS ; ALTITUDE ; TREELINE
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41571099] ; National Natural Science Foundation of China[41030528]
Funding OrganizationNational Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000392313400004
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/65059
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhang Baiping; Yao Yonghui
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resource & Environm Informat Syst, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang Shuo,Zhang Baiping,Yao Yonghui,et al. Magnitude and Forming Factors of Mass Elevation Effect on Qinghai-Tibet Plateau[J]. CHINESE GEOGRAPHICAL SCIENCE,2016,26(6):745-754.
APA Zhang Shuo.,Zhang Baiping.,Yao Yonghui.,Zhao Fang.,Qi Wenwen.,...&Wang Jing.(2016).Magnitude and Forming Factors of Mass Elevation Effect on Qinghai-Tibet Plateau.CHINESE GEOGRAPHICAL SCIENCE,26(6),745-754.
MLA Zhang Shuo,et al."Magnitude and Forming Factors of Mass Elevation Effect on Qinghai-Tibet Plateau".CHINESE GEOGRAPHICAL SCIENCE 26.6(2016):745-754.
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