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基于区间多阶段随机规划模型的灌区多水源优化配置 被引量:14
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作者 付强 刘银凤 +3 位作者 刘东 李天霄 刘巍 amgad osman 《农业工程学报》 EI CAS CSCD 北大核心 2016年第1期132-139,共8页
灌区多水源灌溉系统中存在许多不确定性因素,随着系统环境的变化及不确定性因素的影响,导致其配水过程具有动态特征。针对灌区多水源灌溉系统的配水特点,该文建立基于区间多阶段随机规划的灌区多水源优化配置模型。同时,考虑灌溉水对作... 灌区多水源灌溉系统中存在许多不确定性因素,随着系统环境的变化及不确定性因素的影响,导致其配水过程具有动态特征。针对灌区多水源灌溉系统的配水特点,该文建立基于区间多阶段随机规划的灌区多水源优化配置模型。同时,考虑灌溉水对作物产量的影响,引入水分敏感指数权重系数,并以黑龙江省和平灌区水稻不同生育阶段灌溉水资源优化配置进行实例研究。结果表明,在不同来水情境下,管理者可根据各个生育阶段水分敏感指数权重系数,判断作物不同生育阶段的需水敏感程度,当来水情境的来水量多时,会产生余水量,可调配给下一生育阶段;当来水情境的来水量少时,管理者可在减少灌溉水量与增加外调水之间进行权衡,并根据需水关键期与需水非关键期做出决策,使水资源在作物生育阶段间及作物生育阶段内进行分配,实现灌区多水源灌溉系统的动态配水。该模型的应用在确保作物产量的同时,使灌溉水资源在作物各个生育阶段进行合理配置,有效地避免了水资源浪费,对提高灌溉水利用效率、保证水资源的可持续利用具有重要意义。 展开更多
关键词 模型 灌溉 作物 灌区多水源 不确定性 区间多阶段随机规划模型 优化配置
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Cloud model-based analysis of regional sustainable water resource utilization schemes 被引量:4
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作者 Fu Qiang Meng Fanxiang +4 位作者 Li Tianxiao Liu Dong Gong Fanli amgad osman Li Yutong 《International Journal of Agricultural and Biological Engineering》 SCIE EI CAS 2016年第5期67-75,共9页
Given the adverse effects of current water shortages,low utilization and imbalance between the supply and demand,and other status quo problems relating to social economic development,the construction industry and agri... Given the adverse effects of current water shortages,low utilization and imbalance between the supply and demand,and other status quo problems relating to social economic development,the construction industry and agriculture,a cloud model was applied to a water resource system using five sustainable water resource utilization schemes for Kiamusze,Heilongjiang Province,as an example.This research changes the qualitative description of the concept language into a quantitative analysis of an evaluation indicator.A cloud model-based analytical method for regional sustainable water resource utilization schemes was proposed,and the sustainable grades of the water resources were calculated.The research results showed that,in addition to the natural continuation of such schemes,the development trends of four new schemes achieved the sustainable utilization of water resources,and thus,the sustainable water resource utilization was optimized.However,when the open-source,throttle,comprehensive and coordination schemes were subjected to the optimum applicability analysis,based on the limiting factors in different periods,resource availability and long-term development,decision-making regarding the best solution in different periods better ensures sustainable development in Kiamusze.The research results provide a significant theoretical basis for the formulation of scientific and reasonable sustainable water resource utilization strategies in Kiamusze. 展开更多
关键词 cloud model regional water resources sustainable utilization normal cloud scheme analysis
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