Magnitude and Forming Factors of Mass Elevation Effect on Qinghai-Tibet Plateau

doi:10.1007/s11769-016-0834-x

	Magnitude and Forming Factors of Mass Elevation Effect on Qinghai-Tibet Plateau
	Zhang Shuo 1,2; Zhang Baiping 1; Yao Yonghui 1; Zhao Fang 1,2; Qi Wenwen 1,2; He Wenhui 1,2; Wang Jing 1,2
刊名	CHINESE GEOGRAPHICAL SCIENCE
	2016-12-01
卷号	26 期号:6 页码:745-754
关键词	Qinghai-Tibet Plateau mass elevation effect (MEE) temperature difference mountain base elevation timberline
ISSN号	1002-0063
DOI	10.1007/s11769-016-0834-x
通讯作者	Zhang Baiping(zhangbp@lreis.ac.cn) ; Yao Yonghui(yaoyh@lreis.ac.cn)
英文摘要	Mass 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.
资助项目	National Natural Science Foundation of China[41571099] ; National Natural Science Foundation of China[41030528]
WOS关键词	MOUNTAINS ; PATTERNS ; ALTITUDE ; TREELINE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000392313400004
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/65058]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang Baiping; Yao Yonghui
作者单位	1.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
推荐引用方式 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.