文章基本信息

标题：Optimal Control of Nutrient Pollution in a Coastal Ecosystem: Agricultural Abatement versus Investment in Wastewater Treatment Capacity
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作者：Laukkanen, Marita ; Huhtala, Anni
期刊名称：Journal of Food Distribution Research
印刷版ISSN：0047-245X
出版年度：2005
期号：SUPPL
出版社：Food Distribution Research Society
摘要：We examine in a dynamic framework how public resources should be allocated to small-scale water protection efforts in agriculture or alternatively to investments in large-scale waste water treatment plants to control point source loads. The building of waste water treatment capacity is characterized by high set-up costs as compared to the operating costs. We determine the optimal timing of investment, the rate of nutrient load reduction from point versus non-point sources, and the optimal switching policies from control of non-point pollution only to control of both non-point and point sources. The results of the analytical model are illustrated with simulation of optimal abatement policies for the Finnish coastal waters in the Gulf of Finland.
关键词：non-point source pollution;point-source pollution;timing of investment