干旱区生态环境知识资源中心(Arid): Spatial-temporal characteristics and influencing factors of relative humidity in arid region of Northwest China during 1966-2017

Arid

	Spatial-temporal characteristics and influencing factors of relative humidity in arid region of Northwest China during 1966-2017
	Chen Ditao; Liu Wenjiang; Huang Farong; Li Qian; Uchennaochege Friday; Li Lanhai
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2020
卷号	12 期号:3 页码:397-412
英文摘要	Playing an important role in global warming and plant growth, relative humidity (RH) has profound impacts on production and living, and can be used as an integrated indicator for evaluating the wet-dry conditions in the arid and semi-arid area. However, information on the spatial-temporal variation and the influencing factors of RH in these regions is still limited. This study attempted to use daily meteorological data during 1966-2017 to reveal the spatial-temporal characteristics of RH in the arid region of Northwest China through rotated empirical orthogonal function and statistical analysis method, and the path analysis was used to clarify the impact of temperature (T), precipitation (P), actual evapotranspiration (ETa), wind speed (W) and sunshine duration (S) on RH. The results demonstrated that climatic conditions in North Xinjiang (NXJ) was more humid than those in Hexi Corridor (HXC) and South Xinjiang (SXJ). RH had a less significant downtrend in NXJ than that in HXC, but an increasingly rising trend was observed in SXJ during the last five decades, implying that HXC and NXJ were under the process of droughts, while SXJ was getting wetter. There was a turning point for the trend of RH in Xinjiang, which occurred in 2000. Path analysis indicated that RH was negatively correlated to T, ETa, W and S, but it increased with increase of P. S, T and W had the greatest direct effects on RH in HXC, NXJ and SXJ, respectively. ETa was the factor which had the greatest indirect effect on RH in HXC and NXJ, while T was the dominant factor in SXJ.
英文关键词	relative humidity spatial-temporal characteristics path analysis influencing factor arid region
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	History
CSCD记录号	CSCD:6751659
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336304
作者单位	Chen Ditao, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences;;Ili Station for Watershed Ecosystem Research, Chinese Academy of Sciences;;University of Chinese Academy of Sciences, State Key Laboratory of Desert and Oasis Ecology;;;;, Urumqi;;Xinyuan;;, ;;;;Beijing 830011;;835800;;100049.; Li Qian, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences;;Ili Station for Watershed Ecosystem Research, Chinese Academy of Sciences;;University of Chinese Academy of Sciences, State Key Laboratory of Desert and Oasis Ecology;;;;, Urumqi;;Xinyuan;;, ;;;;Beijing 830011;;835800;;100049.; Liu Wenjiang, CAS Research Center for Ecology and Environment in Central Asia, Urumqi, Xinjiang 830011, China.; Huang Farong, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences;;Ili Station for Watershed Ecosystem Research, Chinese Academy of Sciences;;CAS Research Center for Ecology and Environment in Central Asia, State Key Laboratory of Desert and Oasis Ecology;;;;, U...
推荐引用方式 GB/T 7714	Chen Ditao,Liu Wenjiang,Huang Farong,et al. Spatial-temporal characteristics and influencing factors of relative humidity in arid region of Northwest China during 1966-2017[J],2020,12(3):397-412.
APA	Chen Ditao,Liu Wenjiang,Huang Farong,Li Qian,Uchennaochege Friday,&Li Lanhai.(2020).Spatial-temporal characteristics and influencing factors of relative humidity in arid region of Northwest China during 1966-2017.Journal of Arid Land,12(3),397-412.
MLA	Chen Ditao,et al."Spatial-temporal characteristics and influencing factors of relative humidity in arid region of Northwest China during 1966-2017".Journal of Arid Land 12.3(2020):397-412.