Research on Water Resources Development and Utilization Based on Linear Regression and Multiple Nonlinear Regression

Abstract

With the further development of industrialization and urbanization, China's water resources will be more severe. In order to study the synergy of the three red line targets, we predicted the total water consumption in 2030 by establishing the total water consumption model and using the linear regression prediction method. It is assumed that the water consumption of 10,000 yuan of industrial added value and the effective utilization coefficient of agricultural irrigation water all reached the red line value in 2030. Next, a multivariate nonlinear regression model of total water consumption is established, and the indirect substitution method is used to obtain the function of the internal relationship among the water consumption of 10,000 yuan GDP, the actual water consumption per mu of cultivated land for irrigation, and the water consumption of 10,000 yuan industrial added value, which includes time variables, and then the sensitivity analysis of the above functions are carried out. The following conclusions are drawn: China's overall water resources development and utilization should adopt the policy of improving the effective utilization coefficient of farmland irrigation water and reducing the industrial added value water consumption of 10,000 yuan as a supplement.