和田河上游径流变化特征及影响因子分析  

Runoff variation characteristics and influencing factors in the upper reaches of Hotan River

作　　者：褚桂红[1] 史文娟[1] 王娟[1] 

机构地区：[1]西安理工大学西北水资源与环境生态教育部重点实验室,西安710048

出　　处：《干旱区资源与环境》2010年第11期83-87,共5页Journal of Arid Land Resources and Environment

基　　金：西安理工大学创新基金(106-210708);陕西省教育厅基金(08jk397);国家重点实验室基金(10501-170)资助

摘　　要：和田河上游径流量的变化直接关系到和田绿洲用水的安全性及生态稳定性。利用和田河上游1957～2005年径流量资料及同期该流域气象资料,分析了和田河上游地表径流量变化规律及影响因子。结果表明:和田河上游径流量年内分配极不均匀;年际间呈现出逐年递减趋势,且主要集中在夏季,而夏季径流量的减少最终导致了年径流量的减少;通过进一步分析,暖干与暖蒸发型气候导致了和田河上游产流量减少,其中气温是影响径流量变化的最主要因子。The annual runoff change directly related to the safety of water utilization and the ecological stability in the upper reaches of Hotan River.Based on the runoff and weather data of the corresponding period in 1957-2005,the variation characteristics of runoff and its influencing factors were analyzed.The results indicated that variation trends of seasonal runoff distribution were inhomogeneous.The average runoff has been decreasing over the past 49 years,and the trend mostly centralized in the summer,the decrease of runoff in summer has caused annual runoff amount reduce.After further study that the mean reasons for annual runoff decrease are warming-drying and warming-evaporation climate which induce the trend of drought.The temperature has become the mean cause for the decrease of runoff.

关 键 词：径流 影响因子 和田河 

分 类 号：TV121[水利工程—水文学及水资源]