基于非线性规划的莱州湾营养盐环境容量计算

发布时间：2018-01-03 17:45

  本文关键词：基于非线性规划的莱州湾营养盐环境容量计算　出处：《海洋科学进展》2016年02期 　论文类型：期刊论文

  更多相关文章： 营养盐 莱州湾 非保守物质 环境容量 非线性规划

【摘要】：在前人研究的基础上提出了基于非线性规划的排海通量最优化法(简称非线性规划法),以进行海域内非保守物质环境容量计算,并选取莱州湾这个水动力较强、面积较大的半封闭海域进行模拟、计算。为更好地保护生态环境,对于氮(N)、磷(P)等非保守物质(以无机氮(DIN)、无机磷(DIP)为例进行分析),选取其月最高浓度场数据,依次计算出莱州湾海域每个月的营养盐响应系数场,并进一步使用非线性规划法求解出营养盐的月环境容量。最终计算结果显示,21世纪初莱州湾的营养盐环境容量为:在保持莱州湾DIP排放现状不变的前提下,其DIN年环境容量为21 843t/a,剩余年环境容量为-8 264t/a,需要减少点源DIN的排放量;而在保持莱州湾DIN排放现状不变的前提下,其DIP年环境容量为1 794t/a,剩余年环境容量达1 485t/a,可继续容纳部分DIP的排放。
[Abstract]:On the basis of previous studies, a nonlinear programming optimization method is proposed to calculate the environmental capacity of non-conservative materials in the sea area. In order to better protect the ecological environment, the Laizhou Bay, a semi-enclosed sea area with strong hydrodynamic force and larger area, is simulated and calculated. The data of the monthly maximum concentration field were selected for the analysis of non-conservative substances such as phosphorus (P) and other non-conservative substances (such as inorganic nitrogen (DINA), inorganic phosphorus (DIPP)). The monthly nutrient response coefficient field in Laizhou Bay was calculated in turn, and the monthly environmental capacity of nutrient was calculated by nonlinear programming method. In 21th century, the environmental capacity of nutrient in Laizhou Bay was: the annual environmental capacity of DIN was 21 843 t / a on the premise of keeping the present situation of DIP emission unchanged in Laizhou Bay. The environmental capacity for the rest of the year is -8,264 t / a, which requires a reduction in point source DIN emissions; On the premise of keeping the DIN emission status unchanged in Laizhou Bay, the annual environmental capacity of DIP is 1794 t / a, and the remaining annual environmental capacity is 1 485 t / a. Can continue to accommodate part of the DIP emissions.
【作者单位】： 国家海洋局北海信息中心;中国海洋大学物理海洋实验室;海军北海舰队海洋水文气象中心;
【基金】：2015年北海分局海洋科技项目——海洋站海冰观测资料的质控方法研究与初步应用(2015B14)
【分类号】：X26;X55
【正文快照】： 对海域污染物的环境容量的研究是由对河流、湖泊污染物环境容量的研究拓展到海洋领域所形成的。环境容量最初只应用于国外海域污染物的排海通量控制[1-4],后被我国学者借鉴和应用,并不断得以发展[5-8]。污染物在海洋环境中发生的物理、化学、生物等自净过程共同决定了其环境容，

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