气候变化领域集成服务门户(CCPortal): The Characteristics and Controlling Factors of Water and Heat Exchanges over the Alpine Wetland in the East of the Qinghai-Tibet Plateau

CCPortal

DOI	10.1007/s00376-022-1443-5
	The Characteristics and Controlling Factors of Water and Heat Exchanges over the Alpine Wetland in the East of the Qinghai-Tibet Plateau
	Chen, Jinlei; Yuan, Yuan; Yang, Xianyu; Wang, Zuoliang; Kang, Shichang; Wen, Jun
发表日期	2023
ISSN	0256-1530
EISSN	1861-9533
起始页码	201
结束页码	210
卷号	40 期号:2
英文摘要	Alpine wetland is one of the typical underlying surfaces on the Qinghai-Tibet Plateau. It plays a crucial role in runoff regulation. Investigations on the mechanisms of water and heat exchanges are necessary to understand the land surface processes over the alpine wetland. This study explores the characteristics of hydro-meteorological factors with in situ observations and uses the Community Land Model 5 to identify the main factors controlling water and heat exchanges. Latent heat flux and thermal roughness length were found to be greater in the warm season (June-August) than in the cold season (December-February), with a frozen depth of 20-40 cm over the alpine wetland. The transfers of heat fluxes were mainly controlled by longwave radiation and air temperature and affected by root distribution. Air pressure and stomatal conductance were also important to latent heat flux, and soil solid water content was important to sensible heat flux. Soil temperature was dominated by longwave radiation and air temperature, with crucial surface parameters of initial soil liquid water content and total water content. The atmospheric control factors transitioned to precipitation and air temperature for soil moisture, especially at the shallow layer (5 cm). Meanwhile, the more influential surface parameters were root distribution and stomatal conductance in the warm season and initial soil liquid water content and total water content in the cold season. This work contributes to the research on the land surface processes over the alpine wetland and is helpful to wetland protection.
关键词	alpine wetland Qinghai-Tibet Plateau land surface processes atmospheric factor surface parameter
英文关键词	LAND; LAKE
WOS研究方向	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000897493100003
来源期刊	ADVANCES IN ATMOSPHERIC SCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282920
作者单位	Chinese Academy of Sciences; Chengdu University of Information Technology; Chinese Academy of Sciences; Lanzhou University
推荐引用方式 GB/T 7714	Chen, Jinlei,Yuan, Yuan,Yang, Xianyu,et al. The Characteristics and Controlling Factors of Water and Heat Exchanges over the Alpine Wetland in the East of the Qinghai-Tibet Plateau[J],2023,40(2).
APA	Chen, Jinlei,Yuan, Yuan,Yang, Xianyu,Wang, Zuoliang,Kang, Shichang,&Wen, Jun.(2023).The Characteristics and Controlling Factors of Water and Heat Exchanges over the Alpine Wetland in the East of the Qinghai-Tibet Plateau.ADVANCES IN ATMOSPHERIC SCIENCES,40(2).
MLA	Chen, Jinlei,et al."The Characteristics and Controlling Factors of Water and Heat Exchanges over the Alpine Wetland in the East of the Qinghai-Tibet Plateau".ADVANCES IN ATMOSPHERIC SCIENCES 40.2(2023).