天山南坡渭干河流域地表水资源量及其变化趋势  

Surface Water Resources and Its Trends in Weigan River Basin on the South Slope of Tianshan,China during 1956-2007

作　　者：段建军[1] 曹晓莉[1] 沈永平[2] 高前兆[2] 王顺德[1] 

机构地区：[1]阿克苏水文水资源勘测局,新疆阿克苏843000 [2]中国科学院寒区旱区环境与工程研究所,甘肃兰州730000

出　　处：《冰川冻土》2010年第6期1211-1219,共9页Journal of Glaciology and Geocryology

基　　金：全球变化研究国家重大科学研究计划项目(2010CB951404;2010CB951402);中国科学院冰冻圈科学国家重点实验室2010年开放基金项目(SKLCS2010-04);国家自然科学基金项目(40771047);国家重点基础研究发展计划(973计划)项目(2007CB411507)资助

摘　　要：渭干河流域由木扎提河、卡普斯浪河、台勒维丘克河、卡拉苏河、克孜尔河5条支流汇合而成,支流均发源于天山南坡,单独出流,汇集于拜城盆地的克孜尔水库,始称渭干河.渭干河是天山南麓三大河流之一,主要支流木扎提河发源于汗腾格里峰东坡的冰川集结区,河流源头多接冰川,以冰川融水为主要补给源.5条支流多年平均实测径流量27.98×108m3,干河流域地表水资源量为31.59×108m3,其中地表水资源可利用量为26.05×108m3.从渭干河流域的河川径流量组成可以看出,集水区河水来源于冰川融水、融雪径流、降雨径流,冰川融水量变化和降水量的波动,控制着河流径流量的大小变化.利用现有的观测数据和研究成果粗估分析流域地表水资源的变化趋势,预计近、中期径流量会相应增多.Weigan River is the confluence from five tributaries of Muzart River,Kaposilang River,Telvychuk River,Karasu River and Kezil River,which all originated from the southern slope of Tianshan Mountains and outflow individually.Kezil Reservoir is at the convergence of the five rivers in Baicheng basin,from here,named Weigan River.Weigan River is one of the three major rivers in the southern of Tianshan Mountains.Muzart River,the main tributary,originated from the glaciers in the east slope of Khan Tengri Mountains.Glacier melt is the main supply source of many rivers.The mean annual runoff of five tributaries is 27.98×108m3.The surface water resources in mainstream are 31.59×108m3,of which the amount of surface water available is 26.05×108m3.The components of runoff shows that the river supplied by glacier melt,snow melt and precipitation in catchment.The changes in glacier melt and precipitation control the changes in river runoff.It is an extremely complex subject to study the changes in glacier melt and precipitation and their trends.Based on the available observation data and research results,the change trends of surface water resources were projected,the result shows that the recent runoff and medium-term runoff will increase.

关 键 词：地表水资源 可利用量 变化趋势 渭干河流域 天山 

分 类 号：P333[天文地球—水文科学]