The Research on Optimization of Agricultural Planting Structure in Minqin Basin under Water-saving Mode

DOI: https://doi.org/10.62517/jlsa.202407215

Author(s)

Yingying Wang1, Jianjun Zeng2,3,*, Yanqiang Cui4 , Yigang Wei2

Affiliation(s)

1College of Resources and Environment, Gansu Agricultural University, Lanzhou, Gansu, China. 2College of urban Environment, Lanzhou City University, Lanzhou, Gansu, China 3State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi’an University of Technology, Xi’an, 710048, Shaanxi, China 4College of Water Conservancy and Hydropower Engineering, Gansu Agricultural University, Lanzhou, 730000, Gansu, China *Corresponding author.

Abstract

Minqin Basin holds more rate of dependency on water resources and more vulnerability sensitivity to the ecological environment. It is the key to carry out research on the optimization of agricultural planting structure and priority research on water saving, so as to produce the largest economic and ecological benefits for agriculture under the condition of limited water resources. Research and study shall be carried out on the agricultural planting structure of Minqin Basin with examples through the establishment of constraints and objective functions and the construction of a linear programming model based on the high-efficiency water-saving technology of agriculture. The local crop planting structure has changed significantly from 1995 to 2020, which is mainly reflected in: (1) The total planted area of crops rose significantly, from 438,200 to 1000,000 hm2; (2) The planting area of grain crops tends to grow, and the economic crops and other crops tend to fall down; (3) The local net output value rose up significantly, from 4.8 ×109 yuan in 1995 to 5×1010 yuan; (4)The planned crop planting area is slightly larger than the crop planting area in 2020. However, the total output value of crops grows to 3.43×108 yuan, which is 1.18 times the output value in 2020. As there are demands urgent for water saving in agricultural planting in Minqin, it is imperative to optimize planting structure and promote advanced irrigation technology.

Keywords

Agricultural Planting; Optimization Model; High-Efficiency Water-Saving; Structure; Minqin Basin

References

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