气候变化下石羊河流域水资源特征分析  

Analysis on the Characteristics of Water Resources in the Shiyang River Basin under the Background of Climate Warming

作　　者：郭小芹[1,2] 刘明春 曾婷 韩俊峰 

机构地区：[1]中国气象局兰州干旱气象研究所,甘肃省干旱气候变化与减灾重点实验室,中国气象局干旱气候变化与减灾重点开放实验室,甘肃兰州730020 [2]甘肃省武威市气象局,甘肃武威733000 [3]石羊河流域综合治理指挥部,甘肃武威733000

出　　处：《安徽农业科学》2014年第5期1385-1387,1426,共4页Journal of Anhui Agricultural Sciences

基　　金：公益性行业(气象)科研专项(GYHY200806021)

摘　　要：基于5个气象站点30年气象观测资料和近10年的水资源数据，运用数理统计方法分析了石羊河流域水资源特征，结果表明，1981～2010年石羊河流域增暖明显，上游年降水量显著减少，石羊河主干流径流量呈季节性变化；地下水位趋深，北部荒漠地区持续下降；水资源总量以0．8809亿m3／a的速度减少，且对降水的敏感度明显高于对温度的反映，水资源开发利用形势非常严峻。Based on the data of five meteorological stations in 30a and water resources data in recent 10a, the characteristics of water resources in Shiyanghe River Basin were analyzed using mathematical statistics method. The results showed that Shiyanghe River Basin had changed warming significantly and its upstream precipitation had a significant reduction during 1981 - 2010. Simultaneously, the annual major runoff of Shiyanghe River showed a seasonal variation. Regional groundwater had continued drawdown, especially in the northern desert region. The total amount of water resources was reduced at a rate of 0. 880 9 × 10^8 m3/a, and its sensitivity to precipitation was obvious higher than temperature, the development and utilization of water resources situation is very grim.

关 键 词：关键词石羊河流域 气候变化 水资源 径流量 敏感度 

分 类 号：S271[农业科学—农业水土工程]