干旱区生态环境知识资源中心(Arid): A mechanistic investigation of the oasis effect in the Zhangye cropland in semiarid western China

Arid

DOI	10.1016/j.jaridenv.2020.104120
	A mechanistic investigation of the oasis effect in the Zhangye cropland in semiarid western China
	Ruehr, Sophie 1; Lee, Xuhui 1; Smith, Ronald 2; Li, Xin3 ; Xu, Ziwei 4; Liu, Shaomin 4; Yang, Xiaofan 4; Zhou, Yanzhao 3
通讯作者	Ruehr, Sophie
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2020
卷号	176
英文摘要	Providing mechanistic explanations for oasis cold island effect trends expands current understanding of how land use change affects local climate in semi-arid regions globally. Data from Zhangye, Gansu, China in 2013 were used to evaluate intrinsic biophysical mechanism (IBPM) theory's ability to model the oasis effect. The land-surface temperature oasis effect is observed most intensely in summer afternoon (average difference -12.66 +/- 6.6 K at 13:30 between oasis and desert sites). Observed land-surface temperature oasis effects result from differences in surface albedo, Bowen ratio, soil heat flux and air temperature. The Bowen ratio change is the strongest predictor of land-surface temperature oasis effect, with a nearly 1:1 relationship to the observed land-surface oasis effect in summer (R-2 = 0.6). The IBPM theory accurately predicts oasis effects for 66% of summer daylight hours, with an average RSME of 4.72 K. Correlation analysis is performed to evaluate the impacts of meteorological conditions on observed oasis effects, showing that higher windspeed and greater atmospheric clarity produce stronger land-surface temperature oasis effects. In summer, this relationship is strongest, with an R-2 value of 0.65 and RSME of 3.77. This research has implications for evaluating temperature impacts of land use change in semi-arid regions globally.
英文关键词	Oasis-desert system Energy balance Intrinsic biophysical mechanism (IBPM) Semi-arid region
类型	Article
语种	英语
国家	USA ; Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000517850300006
WOS关键词	ENERGY-BALANCE CLOSURE ; SURFACE-TEMPERATURE ; LAND-COVER ; CLIMATE ; IMPACTS ; ISLAND ; BASIN ; SEA
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	北京师范大学 ; 中国科学院青藏高原研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314884
作者单位	1.Yale Univ, Sch Forestry & Environm Studies, New Haven, CT 06511 USA; 2.Yale Univ, Dept Geol & Geophys, New Haven, CT 06520 USA; 3.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing, Peoples R China; 4.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Ruehr, Sophie,Lee, Xuhui,Smith, Ronald,et al. A mechanistic investigation of the oasis effect in the Zhangye cropland in semiarid western China[J]. 北京师范大学, 中国科学院青藏高原研究所,2020,176.
APA	Ruehr, Sophie.,Lee, Xuhui.,Smith, Ronald.,Li, Xin.,Xu, Ziwei.,...&Zhou, Yanzhao.(2020).A mechanistic investigation of the oasis effect in the Zhangye cropland in semiarid western China.JOURNAL OF ARID ENVIRONMENTS,176.
MLA	Ruehr, Sophie,et al."A mechanistic investigation of the oasis effect in the Zhangye cropland in semiarid western China".JOURNAL OF ARID ENVIRONMENTS 176(2020).