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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Emergence of a Microcystis bloom in an urban water body, Kandy lake, Sri Lanka
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Emergence of a Microcystis bloom in an urban water body, Kandy lake, Sri Lanka

机译：斯里兰卡康提湖城市水域中微囊藻的爆发

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Restoration and management of eutrophic water bodies located in urban centres are priorities in the socio-economic agenda of local governments, urban councils, city missions, etc. A variety of bottom-up and top-down strategies have been tested (e.g. diversion of effluent outfalls, dredging, aeration, chemical treatment, bio-manipulation, watershed management, etc.) around the world, and there are success stories and failures. Failures in restoration and sustainable management of eutrophic, urban water bodies, especially in developing countries are primarily linked with poor knowledge of hydraulic balance, lim-nological processes and dynamics of particular aquatic systems, and disturbances in the watershed or within the water body triggered by human activities. Trophic evolution and subsequent eutrophication is fundamentally a chronological phenomenon. However, sudden outbreaks of algal blooms in eutrophic water may be linked with other unknown factors. Silva and Schiemer emphasize the human factor as the fourth dimension of reservoir limnology in the tropics. Hydraulic balance is rigorously manipulated in the tropics, resulting in sudden changes in limnological processes and dynamics. Shallow man-made water bodies in monsoon Asia show a distinct annual trophic shift from mesotrophic to eutrophic, resulting from rainfall-bound filling and progressive water release to meet the demand in the command area.
机译：恢复和管理位于城市中心的富营养化水体是地方政府，市议会，城市使团等的社会经济议程中的优先事项。已经测试了各种自下而上和自上而下的策略（例如，污水的分流）全球范围内的排水，疏ging，曝气，化学处理，生物处理，集水区管理等），并且有成功与失败的故事。富营养化城市水体的恢复和可持续管理失败，尤其是在发展中国家，其失败与对水力平衡，特定的水生系统的水文学过程和动力学以及对流域或水体内部扰动的了解不足有关。人类活动。营养进化和随后的富营养化从根本上讲是一种时序现象。但是，在富营养化水中突然爆发藻华可能与其他未知因素有关。 Silva和Schiemer强调人为因素是热带地区储层学的第四维度。在热带地区严格控制水力平衡，从而导致气候过程和动力的突然变化。季风亚洲的浅层人造水体从中营养向富营养化呈现出明显的年度营养变化，这是由于降雨限制的灌水和逐步释放水以满足命令区域的需求而造成的。

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