干旱区生态环境知识资源中心(Arid): 基于两阶段随机规划方法的灌区水资源优化配置

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	基于两阶段随机规划方法的灌区水资源优化配置
其他题名	Optimal water resources planning based on interval-parameter two-stage stochastic programming
	付银环; 郭萍; 方世奇; 李茉
来源期刊	农业工程学报
ISSN	1002-6819
出版年	2014
卷号	30 期号:5 页码:73-81
中文摘要	灌区水资源优化配置的不确定性研究,对于提高水分的利用效率,减少农业灌溉用水,建立节水型社会具有重要的意义,尤其是对于中国的干旱半干旱地区。该文针对灌区水资源系统中存在的不确定性,以西营灌区、清源灌区、永昌灌区为研究区域,运用区间2阶段随机规划的方法,建立了地表水和地下水联合调度的灌区之间水资源优化配置模型。该模型以多灌区、多水源联合调度系统的成本最小为目标函数,引入随机数和区间数表示该系统中存在的不确定性,将地下水和地表水水资源在不同地区之间进行优化,并以配置结果为输入数据,以作物全生育期的水分生产函数为基础,建立灌区不同农作物灌溉定额的非线性区间不确定性水资源优化配置模型,将优化配置水量分配到灌区典型农作物。2个模型均以区间的形式给出优化配置的结果,为决策者提供更为准确的决策空间,更真实地反映实际的水资源优化配置形式。
英文摘要	Studies on water resources allocation in irrigation area under uncertainty are important for increasing water use efficiency, reducing agricultural irrigation water amount and establishing water-saving society, especially for the arid and semi-arid areas in China. In this study, two models were established based on uncertainty theory in order to make plans for efficient water resources management. One of the models was an interval-parameter two-stage stochastic optimization model developed for dispatching the underground and surface water systems for irrigation area of Xiying, Qingyuan, Yongchuan (China) under the conditions of uncertainty and complexity. In the model, the minimal system operation cost was regarded as the objective function and the probability distribution and interval parameters were used to express the uncertainty of water supply. The process of water supply from multiple sources was simulated and the allocation of water from various sources was optimized. The model took into account of the random of inflow, assumed that the probability of occurrence for high, middle and low levels were 0.2, 0.6, and 0.2, and introduced the decision variablesz. The multi-variable problem was solved by the method of linear programming, and the optimum range in the model was determined. The other model was developed based on the water production function of crops (spring wheat, spring maize, flax, seed-water melon, and potato) in the whole growth stage. The water resources in different irrigation area were assigned to each of the crops in order to realize the biggest benefit while saving water. The whole-growth-stage distribution of water quantity in representative years with supposed frequency was obtained. The models of optimization configuration and optimized processes based on uncertainty theory could efficiently and accurately identify water source for an unknown inflow,and provide valuable information for decision making in planning management and help with striking a balance between environmental and economic objectives. Meanwhile, it could promote the development of water-saving irrigation agriculture, and further improve the economic value of water resources. In comparison with the other optimization techniques, the method used here had at least three advantages of 1) it could solve the problems of uncertainties in agricultural water resources system, and produce the results in the forms of interval number, providing a more broad decision space for decision makers;2) the water allocation among multi-water resources, multi-area and multi-crops could enhance water use efficiency and income of farmers;and 3) it could be used for calculation of the crop water requirement in different level years, and resolve the problem of multi-water supply probability.
中文关键词	水资源 ; 不确定性分析 ; 非线性规划 ; 水资源优化配置 ; 区间两阶段随机规划 ; 区间非线性规划
英文关键词	water resources uncertainty analysis nonlinear programming water resources allocation interval-parameter two-stage stochastic programming interval nonlinear programming
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Engineering
WOS研究方向	Engineering
CSCD记录号	CSCD:5065396
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231466
作者单位	付银环, 中国农业大学水利与土木工程学院, 北京 100083, 中国.; 郭萍, 中国农业大学水利与土木工程学院, 北京 100083, 中国.; 方世奇, 中国农业大学水利与土木工程学院, 北京 100083, 中国.; 李茉, 中国农业大学水利与土木工程学院, 北京 100083, 中国.
推荐引用方式 GB/T 7714	付银环,郭萍,方世奇,等. 基于两阶段随机规划方法的灌区水资源优化配置[J]. 中国农业大学,2014,30(5):73-81.
APA	付银环,郭萍,方世奇,&李茉.(2014).基于两阶段随机规划方法的灌区水资源优化配置.农业工程学报,30(5),73-81.
MLA	付银环,et al."基于两阶段随机规划方法的灌区水资源优化配置".农业工程学报 30.5(2014):73-81.