甘肃省黑河地表水资源时空分布变化研究

Study on spatial and temporal distribution of surface water resources of heihe riverin gansu province

基于第三次甘肃省水资源调查评价收集的1956-2016年系列径流资料以及评价成果基础上,对甘肃省黑河流域地表水资源时空分布变化进行分析研究,主要研究包括年内变化、年际变化、空间分布等特性。黑河属于河西地区主要水源地,对河西的农业和工业发展起到决定性作用。黑河流域径流多年呈增加趋势;径流主要集中7月份,在年内分配不平衡;主要产流在山区,空间分布相差较大。地表水资源的开发利用因其时空分布不均匀的影响,需增加水利工程均衡水资源。

Based on the series of runoff data from 1956 to 2016 collected by the third water resources survey and evaluation in Gansu Province and the evaluation results,the temporal and spatial distribution of surface water resources in Heihe River Basin of Gansu Province is analyzed and studied.The main research includes the characteristics of annual change,interannual change and spatial distribution.Heihe River is the main source of water in Hexi area,which plays a decisive role in the development of agriculture and industry in Hexi.The runoff of Heihe River Basin has been increasing for many years;the runoff is mainly concentrated in July,and the distribution is unbalanced in the year;the main runoff is in mountainous areas,and the spatial distribution is quite different.Because of the uneven spatial and temporal distribution of surface water resources,it is necessary to increase the balance of water resources in water conservancy projects.