DOI: 10.1016/j.atmosres.2018.06.013
Scopus记录号: 2-s2.0-85048780295
论文题名: Analysis of precipitation characteristics on the loess plateau between 1965 and 2014, based on high-density gauge observations
作者: Tang X. ; Miao C. ; Xi Y. ; Duan Q. ; Lei X. ; Li H.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 213 起始页码: 264
结束页码: 274
语种: 英语
英文关键词: Interannual variability
; Loess plateau
; Precipitation
; Variance decomposition
Scopus关键词: Drought
; Landforms
; Precipitation (chemical)
; Rain
; Sediments
; Soil conservation
; Average annual precipitation
; Extreme precipitation events
; Interannual variability
; Loess Plateau
; Precipitation characteristics
; Precipitation variability
; Spatiotemporal variability
; Variance decomposition
; Climate change
; annual variation
; climate change
; drought
; plateau
; precipitation assessment
; precipitation intensity
; rainfall
; raingauge
; soil erosion
; water erosion
; China
; Loess Plateau
英文摘要: The Loess Plateau is ecologically vulnerable and one of the most severely eroded areas in China. In this study, we used daily precipitation data from 170 meteorological stations for the period 1965 to 2014 to systematically analyze the spatiotemporal variability of annual precipitation on the plateau, and to determine the dominant factors influencing changes in annual precipitation. The average annual precipitation is between 400 mm and 600 mm in most regions of the plateau, and precipitation is concentrated in the summer months (June to August). The greatest precipitation is in the southeastern region, but the amount has declined over the past 50 years. Morever, there have been decreases in extreme precipitation events in the southeastern region, and only minor changes in the continuous drought. Erosive rainfall is closely related to the total annual precipitation across the Loess Plateau region, and has decreased along with the decreases in annual precipitation, especially in the southeastern region. Changes in erosive rainfall account for >80% of interannual precipitation variability over large areas of the Loess Plateau. The variability in annual precipitation on the plateau is mainly affected by changes in the intensity and frequency of precipitation; changes in the length of the rainy season have only a minimal effect. Precipitation frequency contributes about 30% to interannual precipitation variability across the region as a whole. However, the eastern region is predominantly affected by changes in precipitation intensity, which contributes about 70% of the variability. These results provide valuable information to determine the dominant factor(s) influencing annual precipitation on the Loess Plateau, and may also be useful in the prevention and control of drought and soil erosion on the plateau. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108797
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China; State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing, 100038, China; Key Laboratory of Agricultural Non-point Source Pollution Control, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
Recommended Citation:
Tang X.,Miao C.,Xi Y.,et al. Analysis of precipitation characteristics on the loess plateau between 1965 and 2014, based on high-density gauge observations[J]. Atmospheric Research,2018-01-01,213