基尼系数法在水污染物总量分配中的应用

Application of Gini Coefficient Method on Total pollutant Load Allocation for Water Bodies

借鉴评价收入公平性的指标——基尼系数的基本概念,提出流域间水污染物总量分配方案合理性的评估方法。以江西5大水系流域水污染物总量分配为例,应用基尼系数法分析了人口、国内生产总值(GDP)、水资源量等指标对分配的影响,绘制各影响因素与主要污染物的洛伦茨曲线,根据洛伦茨曲线对分配方案的合理性进行评估,并提出相应的削减方案。结果表明,应用基尼系数法对江西5大水系流域的水污染物总量方案进行评估和调整,可使方案更具公平性和合理性。

According to the basic concept of Gini eoeffieient which was an index to estimate equity of the income, a specific method of Gini eoeffieient was established to evaluate the scenario of total pollutant load allocation among fiver basins. This method can be used to assess the rationality of total pollutant load allocation in fiver basins. Five fiver basins of Jiangxi Province used as an example, and correlative factors of the Gini coefficient for total pollutant load allocation were analyzed with this method in detail, such as population, GDP, water resources and so on, and the rationality was evaluated by the Lorenz curves of correlative factors and corresponding reduction scheme were put forward. The results showed that the scheme was more fair and reasonable through evaluating and adjusting the scheme of total pollutant load allocation of five river basins in Jiangxi Province by Gini coefficient method.