Study on optimal allocation of water resources in irrigation area based on fuzzy geometric weighted model
WANG Enliang1,2, HU Shengbo1, TIAN Yu1, LIU Xingchao1,2*
1. School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; 2. Heilongjiang Provincial Key Laboratory of Water Resources and Water Conservancy Engineering in Cold Region, Harbin, Heilongjiang 150030, China
Abstract：Aiming at the uncertainty of multi-objective weighting in the optimal allocation of agricultural water resources. Taking Chaoertun irrigation area in Heilongjiang province as the research area. A water resources optimal allocation model based on a fuzzy geometric weighted method was established to transform the multi-objective problem into a single-objective nonlinear problem. The optimal scheme of water resources in irrigation areas with different weights and different growth periods is obtained. Finally, it selected the optimal weight through the comprehensive evaluation system of the irrigation area. The results show that by comparing with the linear multi-objective fuzzy model, the fuzzy geometric weighted model can adjust the weights of multi-objective according to the actual situation, and obtain the optimal water allocation schemes of water resources in the irrigation area under this condition. When the weight of irrigation quantity is 0.3 and the weight of economy is 0.7, and the optimal allocation plan of water resources is obtained. The output value of rice is 82 450 000 yuan. The irrigation amount at the tillering stage, jointing stage, heading stage and milky-ripe stage is 1 154.56×104, 779.12×104, 539.45×104 and 336.57×104 m3, respectively. Likewise, the feasibility of applying the fuzzy geometric weighted method to the optimal allocation of water resources is verified, which provides a reference scheme and decision support for the efficient utilization of agricultural water resources in irrigation areas.
汪恩良,胡胜博,田雨,刘兴超,*. 基于模糊几何加权模型的灌区水资源优化配置[J]. 排灌机械工程学报, 2022, 40(7): 737-744.
WANG Enliang,HU Shengbo,TIAN Yu,LIU Xingchao,*. Study on optimal allocation of water resources in irrigation area based on fuzzy geometric weighted model. Journal of Drainage and Irrigation Machinery Engin, 2022, 40(7): 737-744.
