【摘要】 现有的总量控制污染负荷分配方法通常不考虑非点源污染,使环境容量的计算缺乏科学性,分配缺乏可操作性,污染控制方案难以达到预期效果.在象山港海洋环境容量总量控制研究中,在全面识别非点源污染负荷的基础上,提出了环境容量的二步分配法,即首先为管理控制难度大的非点源预留环境容量,再将剩余容量在其它部门间进行环境经济优化分配.海域环境容量的二步分配法将非点源纳入总量控制的分配体系,同时考虑了部门间的优化分配,有助于实现海域环境目标和环境容量资源的最佳利用.更多还原

【Abstract】 Non-point source pollutant loading is rarely taken into account in the existing methods of total pollutant loading control.Accordingly,the calculation result of environmental capacity (EC) is doubtful and its allocation options are unfeasible.Non-point source pollutant loading was identified during the case study of EC and total pollutant loading control in Xiangshan Bay,Ningbo City,Zhejiang Province,China.A two-step allocation method was applied to integrate non-point source pollutant to the total loading allocation system.Firstly,part of EC is reserved to non-point source pollutant,which is hard to control;then,the rest of EC is allocated among different industries optimally.The result shows that the two-step method can contribute to the optimal utilization of EC and the realization of environmental objectives.更多还原