An Optimal Water Allocation Model Based on "Water-Economy" Gini Coefficient in Urban Agglomeration

With the rapid economic development, the inequality between water resource and other economic factors become increasingly prominent. Based on the Gini coefficient, three indexes, including the "water - economic" Gini coefficient between water resources and population, irrigation area and GDP respectively, are adopted to built a loop iteration model for the optimal allocation of water resources. And the calculation and analysis for the Chang-Ji Urban agglomeration are conducted. The calculation result shows that the "water - economic" Gini coefficient after the optimal allocation of water resources shows correspondingly high match than before extremely unmatched relationship.