摘要
疏勒河流域是目前甘肃省移民和农业开发的重点地区 ,也是“再造河西”战略实施水资源潜力最大的地区。随着移民范围和开发程度的迅速增大 ,进一步提高流域水资源及其循环转化关系的研究程度 ,及时发现水资源开发利用过程中存在的问题迫在眉睫。本文在广泛收集有关水文、水利化现状资料和实际调查数据的基础上 ,计算和评价了疏勒河流域的降水资源、冰川资源、地表水资源、地下水资源 (包括地下水补给资源、允许开采资源、储存资源 )、水资源总量的数量和特征 。
Shulehe River basin is an important area of immigrant settlement and agriculture development, and is also the largest area with the potential water resources for carring out the strategy of 'Reconstructing Hexi' in Gansu Province. It is extremely urgent to improve the study level on water resources and its circulation and transformation relations, meantime to try to find and solve the existing problems in exploitation and utilization of water resources. All kinds of water resources in the river basin are calculated and evaluated, such as precipitation, glaciers, surface water, groundwater (including its recharge, allowable exploitation and storage ) and total water resources, based on collecting a lot of data about hydrology, hydrogeology, water conservancy projects, and so on. The characteristics of water resources can be concluded as follows: all water resources is from precipitation, glacial melt is an important part, surface water at the debouchure is consisted of precipitation, glacial melt and mountainous groundwater, groundwater in the cooridor plain is transfored from the surface water, is mostly recharged by the infiltration of stream water including that from irrigation ditches and farmland in the middle reaches, which occupies 79.29%～92.74% of the total; it is mainly recharged by the infiltration of spring water is the lower reaches, which occupies 58.81%～75.04% of the total. The total volume of water resources is about 18.62×10 8m 3·a -1 . It is very rich in groundwater resources in the middle and lower reaches because of the accumulation and storage of groundwater here, and it has 14.38×10 8m 3·a -1 recharge resources, 5.75×10 8m 3·a -1 exploitable resources and 7384×10 8m 3 storage resources, but the current volume of exploited groundwater only occupies 28.17% of the exploitable resources and 11.27% of total recharge. Therefore, there are the great potentialities to exploit groundwater, and some existing problems,such as the domination of surface water, inefficient
出处
《干旱区研究》
CSCD
2001年第4期19-25,共7页
Arid Zone Research
基金
国土资源部中国地调局新一轮国土资源大调查<河西走廊地下水勘查>项目 ( 2 0 0 0 10 40 0 2 0 0 73)基金资助
关键词
水资源
疏勒河
开发利用
问题探讨
water resources, characteristic, utilization, Shulehe River.
