中文摘要：

为气象学基于数据，水文学，土壤，种，在中间的灌溉区域的植被，和社会经济的开发 Heihe 河盆到达，西北中国，在这个区域的给水和需求的平衡的模型被建立，并且水资源的安全被估计，从哪个在在地区性的水文学上的 Gansu 省和内部蒙古之间的 Heihe 河盆的水资源的统一管理的效果与在从在地下水的 Heihe 河和增加转移的给水的减少是重要的结果提取了。另外，地下水水平稳定地一直在减少由于，这被发现在抽和减少在上再装。在现在的年(2003 ) 里，因为地下水透支，在灌溉区域的潜在的地下水的体积是远小的；甚至在特别区域，没有为使用的地下水资源的可获得性。在 2003，给水不是足够的在不同灌溉区域遇见水需求，水资源的持续发展和利用没被固定，并且给水危机发生在 Pingchuan 灌溉区域。当维持或改善并且水资源计划管理的能力时，为社会，农业，经济，工业，和生计的持续发展完成水安全，在给水和在农业灌溉节省的水之间的合理百分比决定被考虑。如果这不发生，这被害怕现在的性能浇开发，计划可以进一步加重水资源和进一步的损坏的缺乏的问题易碎的生态的系统。

英文摘要：

Based on the data for meteorology, hydrology, soil, planting, vegetation, and socio-economic development of the irrigation region in the middle reaches of the Heihe River basin, Northwest China, the model of balance of water supply and demand in the region was established, and the security of water resource was assessed, from which the results that the effects of unified management of water resources in the Heihe River basin between Gansu Province and Inner Mongolia on regional hydrology are significant with a decrease in water supply diverted from Heihe River and an increase in groundwater extracted. In addition, it was found that the groundwater level has been steadily decreasing due to over pumping and decrease in recharges. In present year （2003）, the volume of potential groundwater in the irrigation districts is far small because of the groundwater overdraft; even in the particular regions, there is no availability of groundwater resources for use. By 2003, water supply is not sufficient to meet the water demand in the different irrigation districts, the sustainable development and utilization of water resources are not secured, and the water supply crisis occurs in Pingchuan irrigation district. Achieving water security for the sustainable development of society, agriculture, economy, industry, and livelihoods while maintaining or improving the abilities of the management and planning of water resources, determining of the reasonable percentage between water supply and groundwater utilization and water saving in agricultural irrigation are taken into account. If this does not occur, it is feared that the present performance of water development and planning may further aggravate the problem of scarcities of water resources and further damage the fragile ecological system.