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      氣候變化研究進展 ?? 2011, Vol. 7 ?? Issue (5): 357-362.

      ? 氣候變化影響 ? 上一篇    下一篇

      降水變化和人類活動對延河流域徑流影響的定量評估

      邱臨靜1,鄭粉莉2,尹潤生3,4,俞方圓5   

      1. 1. 西北農(nóng)林科技大學林學院
        2. 中國科學院水利部水土保持研究所
        3.
        4. 密歇根州立大學
        5. 西北農(nóng)林科技大學資源環(huán)境學院
      • 收稿日期:2011-04-18 修回日期:2011-08-08 出版日期:2011-09-30 發(fā)布日期:2011-09-30
      • 通訊作者: 鄭粉莉 E-mail:flzh@ms.iswc.ac.cn
      • 基金資助:
        科技部“973計劃”項目;農(nóng)業(yè)部“948”項目

      Quantification of Impacts of Precipitation Change and Human Activities on Streamflow in the Yanhe River Basin

      • Received:2011-04-18 Revised:2011-08-08 Online:2011-09-30 Published:2011-09-30
      • Contact: Fenli ZHENG E-mail:flzh@ms.iswc.ac.cn

      摘要: 利用Mann-Kendall突變檢驗法對延河流域1952—2008年降水量與甘谷驛站徑流量進行分析,并以1952—1994年為基準期,定量分析1995—2008年降水變化和人類活動對徑流的影響。結(jié)果表明:57年來延河流域正常降水發(fā)生概率達80.7%,徑流年型以偏枯和枯水年為主;年降水量和徑流量均呈減少趨勢,突變分別發(fā)生在1995和2005年;與1952—1994年相比,1995—2008年的降水量和徑流量較基準期分別減少11.1%和27.3%;降水變化和人類活動對徑流減少的貢獻率分別為46.2%和53.8%。

      關(guān)鍵詞: 延河流域, 徑流, 降水, 人類活動, 影響, Yanhe River basin, streamflow, precipitation, human activities, impact

      Abstract: Based on the observational precipitation and streamflow data in the Yanhe River basin during 1952-2008, the Mann-Kendall test was applied to investigate the trends of precipitation and streamflow. The effects of precipitation change and human activities on streamflow were quantified during the period of 1995-2008. The results indicate that the normal precipitation year accounted for 80.7 %, and most years were charactered by lower and low flow. Annual precipitation and streamflow both exhibited decreasing trends, and their abrupt changes occurred in 1995 and 2005, respectively. Compared with the baseline period of 1952-1994, the reduction of precipitation and streamflow in the period 1995-2008 was 11.1% and 27.3%, respectively; precipitation change contributed 46.2% to streamflow reduction, while human activities resulted in 53.8% of streamflow reduction.

      中圖分類號: 

      京ICP備11008704號-4
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