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机构地区:[1]中国农业科学院农川灌溉研究所
出 处:《中国农业科学》1989年第1期68-74,共7页Scientia Agricultura Sinica
摘 要:近几年用电模拟研究地下水及水资源管理问题,在国内外得到了较广泛的应用,並取得了良好的结果。本文介绍了1983—1985年期间,R-C网络混合模拟计算机在商丘治理区,对大面积农田地下水资源问题所做的模拟、分析,並提出了试区地下水管理多目标、多因素条件下动态预测的结果。Electric analog simulation in studies of grounodwater and water management has been widely used and successful both in this country and abroad in recent years. The applications of a R-C network hybrid computer in Shangqion Reclamation Area during Sixth Five-Year Plan is presented in this paper. The groundwater resources in the large agricultural area was simulated and analysed by the hybrid computer. And this study resulted in dynamic prediction of groundwater management of the area in a multi-objective and multi-factor scheme.The studied area was large. Its boundary was not regular geometry, and had neither impermeable boundary nor recharge boundary with constant rate, and a variable rechar ge boundary had to be used with the simulation. The goal of this study was to determine a groundwater management scheme presupposing the preventing of soil salinity. The obtainment of the management scheme must be comparison processes of various possibilities and the decision had to be made in prerequisite of a comprehensive balance among various limiting factors.Similar were the predicted conclusions resulted from different methods: precipitation occurrence, withdraw intensity of groundwater and stochastic generation of rainfallevaporation year by year, that is, without increasing new facilities and keeping the continuous development of groundwater at rate of 3×10~4-5×10~4m^3per square kilometer per year, the water table could remain between 3 m and 6 m no matter what precipitation occurrences would be. Thereby, the groundwater control would be reached.
分 类 号:S273.4[农业科学—农业水土工程]
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