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Management modeling of suspended solids in the Chesapeake Bay, USA

机译：美国切萨皮克湾悬浮固体的管理模型

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The Chesapeake Bay, USA, suffers from multiple water quality impairments including poor water clarity. A management strategy aimed at improving water clarity through reduction of nutrient and solids loads to the bay is under development. The strategy is informed through the use of the Chesapeake Bay Environmental Modeling Package. We describe herein aspects of the model devoted to suspended solids, a major contributor to poor water clarity. Our approach incorporates a dynamic model of inorganic solids into an eutrophication model, in order to account for interactions between physical and biotic factors which influence suspended solids transport and fate. Solids budgets based on the model indicate that internal production of organic solids is the largest source of suspended solids to the mainstem bay. Scenario analysis indicates that control of solids loads reduces solids concentration in the vicinity of the loading sources. Control of nutrient loads provides more widespread but lesser reductions in suspended solids.
机译：美国切萨皮克湾（Chesapeake Bay）受到多种水质损害，包括水质不佳。正在制定一项旨在通过减少海湾中的养分和固体负荷来提高水的透明度的管理策略。该策略是通过使用切萨皮克湾环境建模软件包提供的。我们在这里描述了专门用于悬浮固体的模型的各个方面，这是导致水透明度差的主要原因。我们的方法将无机固体的动态模型合并到富营养化模型中，以解决影响悬浮固体运输和命运的物理和生物因素之间的相互作用。基于该模型的固体预算表明，有机固体的内部生产是通往主干湾的最大悬浮固体来源。方案分析表明，控制固体负荷可降低负荷源附近的固体浓度。对营养物负荷的控制提供了更广泛但较少的悬浮固体减少量。

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