1961-2010年怒江流域降雨时空变化

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英文篇名：Spatial and Temporal Change of Rainfall in Nujiang Basin in Recent 50 Years 作者：洪美玲 ; 何士华 英文作者：HONG Meiling;HE Shihua;Kunming University of Science and Technology; 关键词：年际降雨 ; 年内降雨集中性 ; 极端降雨 ; M-K突变检验 英文关键词：annual rainfall;;rainfall concentration;;extreme rainfall;;M-K mutation test 中文刊名：STBY 英文刊名：Research of Soil and Water Conservation 机构：昆明理工大学电力工程学院; 出版日期：2019-04-23 出版单位：水土保持研究 年：2019 期：v.26;No.134 基金：国家自然科学基金“高原湖泊流域水资源利用模式的动态识别”(51149013) 语种：中文; 页：STBY201903039 页数：5 CN：03 ISSN：61-1272/P 分类号：254-258

摘要

在全球变暖的背景下,为探讨高原水系水资源的重分配利用,选取怒江流域作为研究对象,研究怒江流域的降雨时空变化。基于怒江流域13个雨量站点中6个站点的50 a降雨数据,采用反距离权重插值法、Kendall非参数检验、线性回归法对流域内年际降雨特征、年内强度特征和极端降雨事件进行了分析。结果表明:怒江流域上游(青藏高原东南区)降雨量小,年内降雨集中性总体趋势减弱;流域中游(青藏高原与云贵高原过渡区)降雨量较为丰富,年内降雨强度趋势上升;流域下游(云南泸水县六库以南区)降雨量最为丰沛,降雨集中性趋势平稳;流域内3片区极端降雨事件均呈上升趋势。综上所述,西藏地区应当注意保水、节水,西藏云南交界过渡区注意预防水土流失与水土综合治理,流域内云南剩余地区应当注意防洪与泥石流治理。
        In order to investigate the spatiotemporal changes of rainfall in the Nujiang River Basin, based on the 50-year rainfall data of 6 stations of 13 rainfall stations in the Nujiang River basin, the interannual rainfall characteristics, intra-annual intensity characteristics, and extreme rainfall events were analyzed using inverse distance weight interpolation, Kendall non-parametric test, and linear regression analysis. The results showed that the rainfall in the upper reaches(northwest) of the Nujinag River Basin was small, and the overall trend of rainfall concentration decreased during the years; rainfall was rich in the middle and lower reaches(central) of the basin, and the intensity of rainfall increased during the years; the rainfall in the lower reaches(southeast) of the river basin was the most abundant, and the trend of rainfall concentration was stable; extreme rainfall events in the three areas in the basin all showed the rising trend. In summary, the attentions should be paid to water conservation in the Tibet region, to the prevention of soil erosion and the comprehensive management of water and soil in the Tibet-Yunnan border and the Gongshan region and to flood control and mudslide control in the rest basin of Yunnan.

引文

[1]刘新有,李自顺,刘永兴,等.怒江流域云南区段降雨时空变化分析[J].人民长江,2017,48(18):39-44.
    [2]刘春录.怒江州怒江流域降雨特性分析[J].珠江现代建设,2015,8(4):22-25.
    [3]樊辉,何大明.怒江流域气候特征及其变化趋势[J].地理学报,2012,67(5):621-630.
    [4]姚治君,段瑞,刘兆飞.怒江流域降水与气温变化及其对跨境径流的影响分析[J].资源科学,2012,34(2):202-210.
    [5]罗贤,何大明,季漩,陆颖,李运刚.近50年怒江流域中上游枯季径流变化及其对气候变化的响应[J].地理科学,2016,36(1):107-113.
    [6]刘冬英,沈燕舟,王政祥.怒江流域水资源特性分析[J].人民长江,2008,39(17):64-66.
    [7]唐亦汉,陈晓宏.近50年珠江流域降雨多尺度时空变化特征及其影响[J].地理科学,2015,35(4):476-482.
    [8]靳俊芳,殷淑燕,庞奖励.近60a来汉江上游极端降水变化研究:以安康地区为例[J].干旱区研究,2014,31(6):1061-1067.
    [9]莫崇勋,阮俞理,林怡彤,等.月、季尺度降雨变化特征及未来变化情况分析[J].节水灌溉,2018(1):52-57.
    [10]翟盘茂,潘晓华.中国北方近50年温度和降水极端事件变化[J].地理学报,2003,58(S):1-10.
    [11]蔡新玲,蔡依晅,叶殿秀,等.渭河流域降雨结构时空演变特征[J].水土保持研究,2017,24(6):370-375.
    [12]曹言,王杰,张雷,等.滇中地区降水事件的时空变化特征分析[J].人民长江,2017,48(21):50-55.
    [13]正果,张明军,王圣杰,等.1961-2011年中国南方地区极端降雨事件变化[J].地理学报,2014,69(5):640-649.