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本文以黄河下游沿黄地区供用水系统为例 ,针对该地区用水系统与黄河来水的不同步性 ,建立了水资源系统风险分析模拟模型 .描述了蒙特卡洛 (M C)随机模拟技术求解风险模拟模型的原理 .对黄河下游供用水系统在不同用水规模情况下的缺水风险进行了随机模拟 .结果表明 :黄河下游沿黄地区在没有外流域水输入前及用水定额没有较大变化的情况下 ,其灌溉规模以不超过 2 33万hm2 为宜 .
In this paper, taking the water supply system along the Yellow River in the Yellow River as an example, this paper establishes a system simulation model of water resources risk analysis based on the unsynchronized water system of the Yellow River and the Yellow River water runoff, and describes the Monte Carlo (stochastic simulation) Simulation model of the Yellow River water supply system in the case of different water scarcity risk random simulation results show that: the Yellow River in the lower reaches of the Yellow River without external waters before the water input and the water quota has not changed a lot Under its irrigation scale to not more than 23.3 thousand hm2 is appropriate.