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首页> 外文学位 >Can the Big Bayou be saved? Water quality assessment and management recommendations for Spring Lake Watershed, Ottawa and Muskegon counties, Michigan.
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Can the Big Bayou be saved? Water quality assessment and management recommendations for Spring Lake Watershed, Ottawa and Muskegon counties, Michigan.

机译：大Bay鱼可以保存吗？密歇根州渥太华和马斯基根县春季湖流域的水质评估和管理建议。

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Spring Lake is a 525-hectare river-mouth lake, lying in a subwatershed of the much larger Grand River Watershed. Appreciated as a resource for recreation, irrigation, and business uses, the scenic eutrophic lake has been plagued during the past several summers with large algal blooms of Microcystis and dense mats of Ceratophyllum and Rhizoclonium. Through a resident survey, 62% of the respondents found the water quality of the lake as unacceptable. Seasonal water and phosphorus budgets completed in this study suggest that the tributaries, septic systems, and lawn fertilizer runoff were the largest external phosphorus loadings, respectively contributing 44%, 28%, and 23% of the total phosphorus inputs from October to April. From May to September, the largest loadings were again from septic systems (86%) and tributaries (10%). In order to reduce the nuisance algal blooms and rootless aquatic plants, lake nutrient concentrations must be lowered by reducing all external nutrient loadings by implementing best management practices in the watershed to control non-point source runoff. Expanded public education in lake ecology will enhance stewardship for the lake ecosystem and aid in the reduction of nutrients. Because nitrogen may be co-limiting with phosphorus, the development of a nitrogen budget is also recommended.
机译：Spring Lake是一个525公顷的河口湖，位于更大的Grand River流域的一个小流域中。作为娱乐，灌溉和商业用途的资源，风景秀丽的富营养化湖泊在过去的几个夏天一直受到困扰，那里有大量的微囊藻藻华以及致密的角藻和根瘤菌。通过居民调查，有62％的受访者认为该湖的水质不合格。这项研究中完成的季节性水和磷预算表明，支流，化粪池和草坪肥料径流是最大的外部磷负荷，从10月到4月分别占总磷输入的44％，28％和23％。从五月到九月，最大的污染再次来自化粪池系统（86％）和支流（10％）。为了减少令人讨厌的藻华和无根水生植物，必须通过在流域中实施最佳管理措施来控制面源径流，从而减少所有外部营养素的含量，从而降低湖泊营养素的浓度。扩大对湖泊生态的公共教育将加强对湖泊生态系统的管理，并有助于减少养分。由于氮可能与磷共存，因此也建议制定氮预算。

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