黄土高原不同气候区降水时空变化特征

doi:10.16843/j.sswc.2017.01.007

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Abstract [Background] Investigations of the spatio-temporal characteristics of precipitation in different climatic regions of the Loess Plateau are very significant, which would be conducive to the explanation of the driving factors of environmental changes in the region. [Methods] Based on the daily precipitation data of 73 meteorological stations on the Loess Plateau from 1961 to 2014, this paper analyzed the spatio-temporal precipitation variations respectively in the whole Loess Plateau and the four climatic regions using mathematical statistics methods of coefficient of variation, concentration degree, concentration period, Mann-Kendall test and Kriging interpolation. [Results] Annual precipitation of the Loess Plateau and the four climatic regions fluctuated and declined slightly during the study period. The annual precipitation of the Loess Plateau ranged from 313.6 mm to 657.4 mm, with a decline rate of -0.79 mm/a. The annual precipitations in the whole Loess Plateau and 4 climatic regions were concentrated mostly in the summer and autumn seasons. For the whole Loess Plateau, the summer and autumn precipitation were 239.4 mm and 108.4 mm, respectively, which constituted 79% of the annual precipitation. Concentration period of precipitation in the whole Plateau mainly ranged from 13 July to 4 September, with most periods (68% of a year) concentrated in the period from 29 July to 13 August. Meanwhile, the concentration degree increased gradually during the period from 1961 to 2014, and the concentration period postponed gradually. For the spatial characteristics of precipitation in the plateau level, it decreased gradually from the southeast (810 mm) to the northwest (130 mm), the annual precipitation of the four regions were in the order of semi-humid region > cold and arid region > semi-arid region > arid region. While the coefficient of variation of precipitation changed in an opposite way and ranged from 0.13 to 0.36. These all indicated that precipitation was influenced strongly by the geographic position. The concentration degree of precipitation ranged from 0.42 to 0.68 and increased gradually from south to north on the Loess Plateau. The concentration periods of precipitation in plain and valley areas (e.g., the Wei River Valley, the Fen River Valley, and the Hetao Plain) were earlier than that in highland and mountainous areas (e.g., Wutai Mountain and Longzhong Plateau), indicating that the terrain had strong influence on the spatial distribution of the precipitation of the Loess Plateau. [Conclusions] Caused by the different intensities of monsoon and different climatic regions, the amount, fluctuation amplitude, and concentration of precipitation were significantly different in each climatic region. The study is aimed to provide certain reference for exploring the spatio-temporal characteristics of precipitation in the Loess Plateau, reasonably allocating the water resources and planning the soil and water conservation in the Loess Plateau.

Key words： precipitation spatio-temporal variation concentration degree and concentration period Kriging spatial interpolation the Loess Plateau

Received: 30 October 2016

PACS:

P426.6

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	XIAO Bei
	CUI Buli
	LI Dongsheng
	CHANG Xueli

Cite this article:

XIAO Bei,CUI Buli,LI Dongsheng, et al. Temporal and spatial variations of precipitation in different climatic regions of the Loess Plateau[J]. SSWC, 2017, 15(1): 51-61.

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http://journal12.magtechjournal.com/Jweb_stbc/EN/10.16843/j.sswc.2017.01.007 OR http://journal12.magtechjournal.com/Jweb_stbc/EN/Y2017/V15/I1/51

[1]	SHARMA C S, BEHERA M D, MISHRA A, et al. Assessing flood induced land cover changes using remote sensing and fuzzy approach in eastern Gujarat (India)[J]. Water Resources Management, 2011, 25(13): 3219.
[2]	DJURO R, MLADJEN AĆU2 . Measuring scales for daily temperature extremes, precipitation and wind velocity[J]. Meteorological Applications, 2014, 21(3): 461.
[3]	ZHANG Qiang, GU Xihui, SINGH V P, et al. Spatiotemporal behavior of floods and droughts and their impacts on agriculture in China[J]. Global and Planetary Change, 2015, 131: 63.
[4]	ZHANG Qiang, LI Jianfeng, SINGH V P, et al. Spatio-temporal relations between temperature and precipitation regimes: implications for temperature-induced changes in the hydrological cycle[J]. Global and Planetary Change, 2013, 111(4): 57.
[5]	BARSUGLI J, ANDERSON C, SMITH J B, et al. Options for Improving Climate Modeling to Assist Water Utility Planning for Climate Change[R/OL]. Water Utility Climate Alliance White Paper, September 17, 2009. http://www.amwa.net/galleries/climate-change/WUCA_models_whitepaper_120909.pdf
[6]	SHARMA C S, MISHRA A, PANDA S N. Assessing impact of flood on river dynamics and susceptible regions: geomorphometric analysis[J]. Water Resources Management, 2014, 28(9): 2615.
[7]	AĆU2 URI AĆU2 M, JANC D. Analysis of predicted and observed accumulated convective precipitation in the area with frequent split storms[J]. Hydrology & Earth System Sciences Discussions, 2011, 15(12): 149.
[8]	王庆, 马倩倩, 夏艳玲, 等. 最近50年来山东地区夏季降水的时空变化及其影响因素研究[J]. 地理科学, 2014, 34(2): 220. WANG Qing, MA Qianqian, XIA Yanling, et al. Spatial-temporal variations and influential factors of summer precipitation in Shandong region during the last 50 years[J]. Scientia Geographica Sinica, 2014, 34(2): 220.
[9]	KUNDZEWICZ Z W, ROBSON A J. Detecting trend and other changes in hydrological data[R/OL]. World Climate Program-Water. World Meteorological Organization, Geneva (WMO/TD-No. 1013), 2000. http://www.wmo.int/pages/prog/wcp/wcdmp/series.php.
[10]	钟水新. 东北冷涡结构特征及其强降水形成机理研究[D].北京:中国气象科学研究院, 2011: 82. ZHONG Shuixin. Structural features of cold vortex and its formation mechanism of heavy rainfall over north China[D]. Beijing: Chinese Academy of Meteorological Sciences, 2011: 82.
[11]	GRAY V. Climate change 2007: Working Group I Report "The Physical Science Basis"[J]. Energy & Environment, 2007, 18(3):433.
[12]	许秀泉.黄土区微型蓄雨设施水体水质变化及对饮水安全影响[D].北京: 中国科学院大学, 2014: 1 . XU Xiuquan. Water quality variation in micro-storage facilities and its influences on safety of drinking water in the Loess Plateau[D]. Beijing: University of Chinese Academy of Sciences, 2014: 1.
[13]	王志杰. 延河流域植被与侵蚀产沙特征研究[D]. 北京: 中国科学院大学, 2014: 9. WANG Zhijie. Characteristics of vegetation and erosion sediment yield in the Yanhe Watershed[D]. Beijing: University of Chinese Academy of Science, 2014: 9.
[14]	罗娅, 杨胜天, 刘晓燕, 等. 黄土高原次降雨径流产沙变化及其与雨强和植被盖度变化的相关性[J]. 干旱区研究, 2015, 32(4): 698. LUO Ya, YANG Shengtian, LIU Xiaoyan,et al. Changes in event-based rainfall-runoff-sediment and the relationships between these changes and rainfall intensity and vegetation coverage variations in the Loess Plateau of China [J]. Arid Zone Research, 2015, 32(4): 698.
[15]	田风霞, 赵传燕, 冯兆东. 黄土高原地区降水的空间分布[J].兰州大学学报(自然科学版), 2009, 45(5): 1. TIAN Fengxia, ZHAO Chuanyan, FENG Zhaodong. Spatial distribution of precipitation in the Loess Plateau region[J]. Journal of Lanzhou University (Natural Science Edition), 2009, 45(5): 1.
[16]	卢爱刚. 半个世纪以来黄土高原降水的时空变化[J]. 生态环境学报, 2009, 18(3): 957. LU Aigang. Spatial and temporal precipitation variation on the Loess Plateau in the past half century [J]. Ecology and Environmental Sciences, 2009, 18(3): 957.
[17]	穆兴民, 陈国良. 黄土高原降水与地理因素的空间结构趋势面分析[J]. 干旱区地理, 1993, 16(2): 71. MU Xingmin, CHEN Guoliang. Analysis on the space structure trend area of precipitation and geographical factors in the Loess Plateau [J]. Arid Land Geography, 1993, 16(2): 71.
[18]	余卫东, 闵庆文, 李湘阁. 黄土高原地区降水资源特征及其对植被分布的可能影响[J]. 资源科学, 2002, 24(6): 55. YU Weidong, MIN Qingwen, LI Xiangge. The features of precipitation in the Loess Plateau and its possible impacts on vegetation distribution [J]. Resources Science, 2002, 24(6): 55.
[19]	冯光扬. 水文年内不均匀系数的探讨[J].山地研究, 1991, 9(1): 27. FENG Guangyang. A Discussion on coefficient of non-uniformity in hydrologic Year[J]. Mountain Research, 1991, 9(1): 27.
[20]	汤奇成, 程天文, 李秀云. 中国河川月径流的集中度和集中期的初步研究[J]. 地理学报, 1982, 37(4): 383. TANG Qicheng, CHENG Tianwen, LI Xiuyun. Preliminary study on the degree and time of concentration on monthly runoff of Chinese streams[J]. Acia Geographica Sinica, 1982, 37(4): 383.
[21]	MANN H B. Nonparametric tests against trend[J]. Econometrica,1945, 13(3):245.
[22]	于洋, 卫伟, 陈利顶, 等. 黄土高原年均降水量空间插值及其方法比较[J].应用生态学报, 2015, 26(4): 999. YU Yang, WEI Wei, CHEN Liding,et al. Comparison on the methods for spatial interpolation of the annual average precipitation in the Loess Plateau region[J]. Chinese Journal of Applied Ecology, 2015, 26(4): 999.
[23]	刘宪峰, 任志远, 张翀, 等. 1959—2008年黄土高原地区年内降水集中度和集中期时空变化特征[J]. 地理科学进展, 2012, 31(9): 1157. LIU Xianfeng, REN Zhiyuan, ZHANG Chong,et al. Inhomogeneity characteristics of intra-annual precipitation on the Loess Plateau during 1959-2008 [J]. Progress in Geography, 2012, 31(9): 1157.
[24]	晏利斌. 1961—2014 年黄土高原气温和降水变化趋势[J]. 地球环境科学, 2015, 6(5): 276. YAN Libin. Characteristics of temperature and precipitation on the Loess Plateau from 1961 to 2014[J].Journal of Earth Environment, 2015, 6(5): 276.
[25]	程楠楠, 何洪鸣, 逯亚杰, 等. 黄土高原近52年降水时空动态特征[J]. 山东农业大学学报(自然科学版), 2016, 47(3): 388. CHENG Nannan, HE Hongming, LU Yajie,et al. Spatial-temporal dynamic characteristics of precipitation in the Loess Plateau, China for Recent 52 Years [J]. Journal of Shandong Agricultural University (Natural Science Edition ), 2016, 47(3): 388.
[26]	刘引鸽. 陕北黄土高原降水的变化趋势分析[J]. 干旱区研究, 2007,24(1): 49. LIU Yinge. Analysis on the change trend of precipitation in north Shaanxi Province in the Loess Plateau [J]. Arid Zone Research, 2007,24(1): 49.
[27]	王麒翔, 范晓辉, 王孟本. 近50 年黄土高原地区降水时空变化特征[J]. 生态学报, 2011, 31(19): 5512. WANG Qixiang, FAN Xiaohui, WANG Mengben. Precipitation trends during 1961-2010 in the Loess Plateau region of China [J]. Acta Ecologica Sinica, 2011, 31(19): 5512.
[28]	CUI Buli, LI Xiaoyan. Stable isotopes reveal sources of precipitation in the Qinghai Lake Basin of the northeastern Tibetan Plateau[J]. Science of the Total Environment, 2015(527/528): 26.