干旱区生态环境知识资源中心(Arid): Spatiotemporal variability of precipitation during 1961- 2014 across theMongolian Plateau

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	Spatiotemporal variability of precipitation during 1961- 2014 across theMongolian Plateau
	Qin Fuying; Jia Gensuo; Yang Jie; Na Yintai; Hou Meiting; Narenmandula
来源期刊	Journal of Mountain Science
ISSN	1672-6316
出版年	2018
卷号	15 期号:5 页码:992-1005
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, Sens 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.
英文关键词	Precipitation Interannual trends Seasonal variability Spatiotemporal characteristics Mongolian Plateau
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:6236053
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335954
作者单位	Qin Fuying, School of Ecology and Environment, Inner Mongolia University;;College of geographical science, Inner Mongolia Normal University, ;;, Hohhot;;Hohhot, ;; 010021;;010022.; Jia Gensuo, Institute of Atmospheric Physics, Chinese Academy of Sciences, Key Laboratory of Regional Climate-Environment for Temperate East Asia,Chinese Academy of Sciences, Beijing 100029, China.; Yang Jie, School of Ecology and Environment, Inner Mongolia University, Hohhot, Inner Mongolia 010021, China.; Na Yintai, Graduate School of Dairy Sciences, Rakuno Gakuen University, Ebetsu, 069-8501, Japan.; Hou Meiting, China Meteorological Administration Training Centre, Beijing 100081, China.; Narenmandula, College of geographical science, Inner Mongolia Normal University, Hohhot, Inner Mongolia 010022, China.
推荐引用方式 GB/T 7714	Qin Fuying,Jia Gensuo,Yang Jie,et al. Spatiotemporal variability of precipitation during 1961- 2014 across theMongolian Plateau[J],2018,15(5):992-1005.
APA	Qin Fuying,Jia Gensuo,Yang Jie,Na Yintai,Hou Meiting,&Narenmandula.(2018).Spatiotemporal variability of precipitation during 1961- 2014 across theMongolian Plateau.Journal of Mountain Science,15(5),992-1005.
MLA	Qin Fuying,et al."Spatiotemporal variability of precipitation during 1961- 2014 across theMongolian Plateau".Journal of Mountain Science 15.5(2018):992-1005.