Spatiotemporal variability of precipitation during 1961-2014 across the Mongolian Plateau

doi:10.1007/s11629-018-4837-1

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2018 > Vol15 No.5

	Spatiotemporal variability of precipitation during 1961-2014 across the Mongolian Plateau
	Qin, FY; Jia, GS; Yang, J; Na, YT; Hou, MT; Narenmandula
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2018
卷号	15 期号:5 页码:992-1005
关键词	Precipitation Interannual trends Seasonal variability Spatiotemporal characteristics Mongolian Plateau
ISSN号	1672-6316
DOI	10.1007/s11629-018-4837-1
文献子类	Article
英文摘要	Precipitation is the dominant factor that controls vegetation growth and land-use practices in the arid and semiarid Mongolian Plateau (MP), so the spatiotemporal heterogeneity of precipitation change has been an important scientific question in the region. This study investigated the spatiotemporal characteristics of annual and seasonal precipitation across the entire MP based on monthly precipitation data from 136 meteorological stations during 1961-2014 by using a modified Mann-Kendall test, Sen's slope, Morlet Wavelet Transform, and geostatistical methods. Results show the following: 1) Annual precipitation decreased slightly from 1961 to 2014. Stations with positive and negative trends were 41.9% and 58.1%, respectively. Significant positive trends were mainly in the southwestern and northeastern regions of the plateau, whereas significant negative trends were in the northern and southeastern regions. 2) Precipitation decreased at rates of -5.65 and -0.41 mm/decade in summer and autumn, respectively, but increased at 1.91 and 0.51 mm/decade in spring and winter. The contribution of spring and winter precipitation to the annual amount increased significantly, but that of summer precipitation decreased significantly. 3) A large majority of stations (80.2%) showed decreasing trends in summer, whereas 89.7% and 83.1% of stations showed increasing trends in spring and winter. The spatial distribution of trend magnitude in seasonal precipitation amount was strongly heterogeneous. 4) By climatic zones, precipitation increased in humid and arid zones, but decreased in a semiarid zone. On the whole, the MP experienced a drying trend, with significant regional differentiation and seasonal variations.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000431989800006
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/35523]
专题	Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.5
推荐引用方式 GB/T 7714	Qin, FY,Jia, GS,Yang, J,et al. Spatiotemporal variability of precipitation during 1961-2014 across the Mongolian Plateau[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(5):992-1005.
APA	Qin, FY,Jia, GS,Yang, J,Na, YT,Hou, MT,&Narenmandula.(2018).Spatiotemporal variability of precipitation during 1961-2014 across the Mongolian Plateau.JOURNAL OF MOUNTAIN SCIENCE,15(5),992-1005.
MLA	Qin, FY,et al."Spatiotemporal variability of precipitation during 1961-2014 across the Mongolian Plateau".JOURNAL OF MOUNTAIN SCIENCE 15.5(2018):992-1005.