| Cite this article: | 李梦晨,洪传春.基于多目标线性规划的河北种植业结构调整研究[J].灌溉排水学报,,():-. |
| Li Mengchen,Hong Chuanchun.基于多目标线性规划的河北种植业结构调整研究[J].灌溉排水学报,,():-. |
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| Study on the planting structure adjustment based on multi-objective linear programming in Hebei province |
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Li Mengchen1, Hong Chuanchun2
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1.Northeastern University at Qinhuangdao,Qinhuangdao;2.Northeastern University at Qinhuangdao
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| Abstract: |
| 【Objective】In order to ensure food security and guarantee economic, social and ecological benefits at the same time, adjusting the planting structure of Hebei province is imperative. 【Method】Therefore, this paper aims to analyze the optimization of planting structure in Hebei province by building a multi-objective optimization model of planting structure adjustment. Firstly, Penman formula recommended by FAO and CropWat8.0 software are used to calculate the blue-green water footprint of crops. Secondly, entropy method is used to calculate the weight factor of economic benefit, water-saving benefit and social benefit. On this basis, the multi-objective model is converted into a single-objective model according to the weight factor, and the optimization results are obtained by using lingo software.【Result Here are the two conclusions: firstly, the planting area of wheat, corn and oil crops decreased by 3.7%, 3.9% and 0.33% respectively, and the planting area of potato and vegetable increased by 8.49% and 2.94% respectively. Second, the total economic benefit of crops increased by 44.7 billion yuan, accounting for 14.1% of the economic benefit in 2015. The crop yield increased by 18 million tons, accounting for 14.5% of the crop yield in 2015. 【Conclusion】The economic, water-saving and social benefits of planting industry in hebei province can be improved by adjusting planting industry structure. |
| Key words: blue-green water; The 13th five-year plan; Planting structure adjustment ;Multi-objective optimization ;Hebei |
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