Irrigation Water Resources Allocation in Jinxi Irrigation District Based on Agricultural Sustainability

被引：0
|
作者：
Xu Y. [1 ]
Wang Y. [1 ]
Liang D. [1 ]
Fu Q. [1 ]
Zhou Y. [1 ]
Chen X. [2 ]
机构：
[1] School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin
[2] School of Management, Harbin University of Science and Technology, Harbin
来源：
Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery | 2020年 / 51卷 / 10期
关键词：
Agriculture sustainability; Agriculture water resources; Stochastic programming; Uncertainty; Water resources allocation optimization;
D O I：
10.6041/j.issn.1000-1298.2020.10.034
中图分类号：
学科分类号：
摘要：
In order to explore the method of promoting the agriculture sustainability in irrigation area under uncertainties through the optimization of irrigation water resources allocation, the methods of stochastic programming and multi-objective programming were used to carry out studies in Jinxi Irrigation Area in Heilongjiang Province and the following results were obtained: based on the optimization, the total irrigation water consumption was saved by 1.3×108 m3 to 3.9×108 m3 and the irrigation water productivity was increased by 0.85 kg/m3 to 1.01 kg/m3. At the same time, the agricultural economic benefitswas increased by 1.8×107 yuan to 6.9×108 yuan. The ecological water allocation was more than 4×107 m3 and the reduction value of agricultural pollutant was 1.28×104 ton to 3.13×104 ton, therefore, the degree of agricultural sustainability in irrigation areas was improved effectively. Otherwise, the benefits of economic, ecological and social among the optimized irrigation water resources allocation policies had obvious differences which was caused by the influence of uncertain factors on the agriculture sustainability. The comprehensive agriculture sustainability of the optimal water allocation policies was analyzed from the aspects of economics benefits, water resources allocation equity, agricultural water resources productivity, agricultural pollutant intensity, GWP and agricultural water resources utilization ratio. Based on the above analysis, the optimal water allocation scheme under each scenario can be determined. Moreover, the sustainability degrees of optimal scheme were all more than 0.4, which meant that the optimized water resource allocation scheme can effectively enhance agriculture sustainability by stabilizing grain yield, improving the efficiency of irrigation and protecting ecological environment in the irrigation areas. © 2020, Chinese Society of Agricultural Machinery. All right reserved.
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页码：299 / 309
页数：10
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