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1951—2014年淮河流域降水量时空变化特征

赵国永, 韩艳, 刘明华, 郭雪莲, 曹淑青

赵国永, 韩艳, 刘明华, 郭雪莲, 曹淑青. 1951—2014年淮河流域降水量时空变化特征[J]. 信阳师范学院学报(自然科学版), 2017, 30(1): 77-81. DOI: 10.3969/j.issn.1003-0972.2017.01.017
引用本文: 赵国永, 韩艳, 刘明华, 郭雪莲, 曹淑青. 1951—2014年淮河流域降水量时空变化特征[J]. 信阳师范学院学报(自然科学版), 2017, 30(1): 77-81. DOI: 10.3969/j.issn.1003-0972.2017.01.017
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ZHAO Guoyong, HAN Yan, LIU Minghua, GUO Xuelian, CAO Shuqing. Characteristics of Temporal and Spatial Variations of Rainfallin Huaihe River Basin During 1951-2014[J]. Journal of Xinyang Normal University (Natural Science Edition), 2017, 30(1): 77-81. DOI: 10.3969/j.issn.1003-0972.2017.01.017
Citation: ZHAO Guoyong, HAN Yan, LIU Minghua, GUO Xuelian, CAO Shuqing. Characteristics of Temporal and Spatial Variations of Rainfallin Huaihe River Basin During 1951-2014[J]. Journal of Xinyang Normal University (Natural Science Edition), 2017, 30(1): 77-81. DOI: 10.3969/j.issn.1003-0972.2017.01.017
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1951—2014年淮河流域降水量时空变化特征

  • 1. 信阳师范学院 南北过渡带研究中心, 河南 信阳 464000;

  • 2. 兰州大学 地质科学与矿产资源学院 & 甘肃省西部矿产资源重点实验室, 甘肃 兰州 730000

基金项目: 

国家自然科学基金项目(41602187)

信阳师范学院基金项目(0201306、2015GGJS-01)

河南省科技计划项目(162102310123)

河南省高等学校重点项目(17A170011)

详细信息
    作者简介:

    赵国永(1985-),男,河南开封人,讲师,博士,主要从事气候变化与环境演变研究.

  • 中图分类号: P423.3

Characteristics of Temporal and Spatial Variations of Rainfallin Huaihe River Basin During 1951-2014

  • 1. Research Center of North and South Transition Zone in China, Xinyang Normal University, Xinyang 464000, China;

  • 2. College of Geological Science and Mineral Resources, Key Laboratory of Mineral Resources in Western China(Gansu Province), Lanzhou University, Lanzhou 730000, China

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    摘要
  • 摘要: 以1951-2014年淮河流域29个站点月降水量数据为研究对象,运用线性趋势、累积距平、小波分析及空间分析等方法,分析了降水量时间和空间变化特征.结果表明:(1)1951-2014年,年、春、夏和秋季降水量呈不显著减少趋势,冬季降水量则具有不显著增加趋势.(2)春、秋和冬季易发生旱涝灾害,夏季降水量变化控制年降水量变化.(3)年降水量具有准2 a和6 a振荡周期.(4)东南部年和四季降水量多于西北部,这与我国年和四季降水量分布模式一致.(5)空间上,年和四季降水量变率中,年和夏季最大,降水量减少区域呈半环状包围降水量增加区域;整个流域冬季降水量几乎没有变化.
    Abstract: Monthly rainfall data of 29 meteorological stations in Huaihe River Basin during 1951-2014 was selected for study. Multiple methods, including linear trend, accumulative anomaly, wavelet analysis and spatial analysis, were applied to detect spatial and temporal characteristics of rainfall variations. The results showed that (1) linear trend for annual, spring, summer and autumn precipitation decreased slightly, and the increasing trend for winter rainfall was not as well obvious; (2) more drought and flood events occurred in spring, autumn and winter. Variation of summer precipitation dominated annual rainfall; (3) quasi-periodicity of 2 years and 6 years were detected in annual rainfall; (4) it indicated an decreasing gradient from southeastern to northwestern in Huaihe River Basin, which was similar in pattern with China; (5) variations of annual and summer precipitation at spatial time scale were stronger than other seasons, and regions with increasing rainfall were surrounded by regions with decreasing rainfall. Regional winter precipitation fluctuated with no significant trend during the period of 1951-2014.
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    • 参考文献(12)
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出版历程
  • 收稿日期:  2016-07-17
  • 修回日期:  2016-10-15
  • 发布日期:  2017-01-09

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