Prediction and Analysis of Water Use Structure in Baiyang River Basin Based on Optimization of Agricultural Irrigation Mode
In order to clarify the development direction of water use structure in Baiyang River Basin of Xinjiang,ac-cording to the water use data of Baiyang River Basin in 2020,aiming at the problem of high agricultural irrigation water consumption in the basin,the optimized agricultural irrigation water consumption was obtained by optimizing different ir-rigation modes.Based on the change trend of various types of water consumption in Xinjiang in the past 16 years,the de-velopment trend of other water use types in the planning year was predicted,and the change of water use structure in Baiyang River Basin was analyzed by Lorenz curve,Gini coefficient,information entropy and equilibrium degree.The re-sults show that the total water consumption in 2030 was 3.11 million m3,which was 34.22%lower than that in 2020.The agricultural irrigation water consumption decreased with time from the partition to the basin,and decreased by 42.11%in 2030.The urban and rural domestic water consumption and ecological environment water consumption showed an upward trend,with an increase of 0.65%in 2030.Industrial water consumption and livestock and fishery water con-sumption both showed a downward trend,with a decrease of 12.69%in 2030;Compared with the two years,the changes in the spatial distribution of agricultural,urban and rural,industrial and animal husbandry and fishery water in the basin are larger.Except for animal husbandry and fishery water,other types of water use are in an"absolute average"state,while the changes in the spatial distribution of ecological environment water in the basin decreased.For example,the Gini coefficients of agricultural,urban and rural,industrial,animal husbandry and fishery and ecological environment water in 2030 are 0.0193,0.051 2,0.051 4,0.051 0 and,-0.051 3,respectively,compared with those in 2020;The information entropy and equilibrium degree of water use structure in 2030 are higher than those in 2020,and the evolution of water use structure tends to be reasonable and gradually stable,that is,the water use structure of Baiyang River Basin is devel-oping in a balanced and stable direction,but it still needs to further optimize the allocation of water resources.
Baiyang River Basinwater use structureinformation entropyLorenz curveGini coefficient
万方数据
维普
