Performance Evaluation of Total Water Pollutant Emissions Reduction in Qinghe River during Different Water Periods
In order to study the implementation performance of the total water pollution reduction measures in the Qinghe River Basin,the performance evaluation of the total water pollutant reduction in this basin's wet season,normal season and dry season was carried out by the set pair analysis(SPA).A performance evaluation index system including the environmental status,operation status and management status of Qinghe River Basin was constructed.According to the evaluation results of the three water periods,the performance level in the wet season is the highest,and the performance level in the dry season is the lowest.However,the overall level of the three water periods is basically the same,and the overall trend is on the rise.This shows that after a series of measures such as the three major emission reductions,the control of point source pollution in industry and life has great results,but the control of non-point source pollution such as livestock and poultry breeding is still relatively weak.River managers need to rectify livestock and poultry breeding projects and control livestock and poultry breeding.The discharge of pollutants should also increase the control of ammonia nitrogen pollutant emissions.
total discharge reductionperformance evaluationset pair analysis(SPA)different water periods
万方数据
维普
