Irrigation area crop irrigation water quantity optimal distribution method under insufficient irrigation condition

It is an optimal allocation and insufficient technology, which is applied in the directions of multi-objective optimization, design optimization/simulation, special data processing application, etc., and can solve the problems of limited irrigation method and total irrigation water demand.

Pending Publication Date: 2021-01-12
XIAN UNIV OF TECH
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Problems solved by technology

[0024] The object of the present invention is to provide a method for optimal distribution of crop irrigation water in an irrigation area under insufficient irrigation conditions, which solves the problem that the existing irrigation method is limited by the total water supply of water sources being less than the total water demand for irrigation of all crops in the irrigation area

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  • Irrigation area crop irrigation water quantity optimal distribution method under insufficient irrigation condition
  • Irrigation area crop irrigation water quantity optimal distribution method under insufficient irrigation condition
  • Irrigation area crop irrigation water quantity optimal distribution method under insufficient irrigation condition

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Embodiment Construction

[0088] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0089] The invention provides a method for optimal distribution of crop irrigation water in an irrigation area under insufficient irrigation conditions. First, based on the Jensen model of crop moisture production function, the objective function is to maximize the relative yield of each crop and minimize the total irrigation water. Realize the optimal allocation of irrigation water in each growth period of different crops; then take the maximum total income of the irrigation area as the objective function, and take the total amount of irrigation water available in the irrigation area as the constraint condition to realize the rational allocation of irrigation water resources among different crops . The model can be divided into two layers, which can realize the single-crop optimization of the crop subsystem and the multi-crop coordination of...

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Abstract

The invention discloses an irrigation area crop irrigation water quantity optimal distribution method under an insufficient irrigation condition, which comprises the following steps of: 1, establishing a first-layer model for optimal distribution of irrigation water quantity in each growth period of different crops by taking the maximum relative yield and the minimum total irrigation water quantity of each crop as target functions; 2, establishing a second-layer model for reasonably distributing irrigation water resources among different crops by taking the maximum total income of the irrigation area as a target function and taking the total amount of available irrigation water of the irrigation area as a constraint condition; and 3, solving the first-layer model obtained in the step 1 andthe second-layer model obtained in the step 2 through a genetic algorithm to obtain the maximum total income of the irrigated area.

Description

technical field [0001] The invention belongs to the technical field of distribution of irrigation water in irrigation areas, and in particular relates to a method for optimal distribution of crop irrigation water in irrigation areas under insufficient irrigation conditions. Background technique [0002] Before establishing the optimal allocation model of irrigation volume in the irrigation area, it is necessary to process and calculate the collected basic information first, and convert it into usable knowledge, which lays the foundation for the establishment of subsequent models. [0003] 1. Utilization of water source and channel information [0004] The total water supply of the irrigation area can be roughly determined by combining the water source information with the water use plan of the irrigation area. In addition, the relevant information of water sources and channels can be used as constraints to restrict the solution of the objective function, so as to find a rea...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q10/04G06Q50/02G06F111/06
CPCG06Q10/04G06Q50/02G06F30/20G06F2111/06
Inventor 高泽海王慧张建丰李涛
Owner XIAN UNIV OF TECH
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