Application of Gini Coefficient Method in Total Amount Allocation for Water Pollutants

Gini coefficient approach was introduced to total amount control and allocation for water pollutants in this paper.The total amount allocation program for water pollutants in Deyang City was given.Gini Coefficient method was used to analyze the effect of targets, such as the population, GDP and environmental capacity on the allocation.The Lorenz curve based on various indicators and the allocation program were drawn and optimized respectively.In accordance with the reasonable scope of Gini coefficient, the major reduction in emissions of pollutants was determined.The results indicated that the imbalance between water pollutant emissions was reflected by the Lorenz curve (based on the population).The optimized allocation scheme was feasible, and the Gini coefficient of the various indicators was more reasonable and fair.