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首页> 外文期刊>Limnologica >A novel device with macrophytes and bio balls as a rehabilitation tool for small eutrophic urban ponds: a mesocosm approximation
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A novel device with macrophytes and bio balls as a rehabilitation tool for small eutrophic urban ponds: a mesocosm approximation

机译：一种具有宏观物质和生物球作为小型富营养城市池塘的康复工具的新型设备：Mesocosm近似值

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摘要

During the last century, the human-derived impact on freshwater systems has been severe all around the world. Artificial eutrophication has an outstanding relevance in urban aquatic ecosystems and it is recognized as one of the most common problems associated with water deterioration in urban lakes and ponds. Therefore, more studies regarding the trophic interactions and the potential rehabilitation methods should be encouraged. Our aim is to evaluate at a mesocosm scale, a device composed of native aquatic plants, either submerged (SPD) or floating (FPD), including an extra artificial potential refuge (bio balls rolls) for zooplankton as a rehabilitation tool for urban ponds. As regards the impact of the tested devices on water quality variables, FPD provoked a decrease in TP and pH. In turns, SPD maintained the dissolved oxygen concentrations above those registered in FPD. Transparency was significantly higher in the presence of plants at final time. Differences in phytoplankton morpho-functional group diversity and zooplankton functional feeding groups were registered by the end of the experiment. Zooplankton abundance at the artificial refuges was higher than at the water column; a study of the efficiency of the bio balls rolls as potential active/passive refugees is merited.
机译：在上个世纪，世界各地对淡水系统的人类产生的影响一直严重。人工富营养化在城市水生生态系统中具有出色的相关性，它被认为是与城市湖泊和池塘的水劣化相关的最常见问题之一。因此，应鼓励更多关于营养互动和潜在康复方法的研究。我们的目的是评估Mesocosm规模，该装置由天然水生植物组成，淹没（SPD）或浮动（FPD），包括Zooplankton的额外人工潜在避难所（Bio Balls Rolls）作为城市池塘的康复工具。关于测试装置对水质变量的影响，FPD引起了TP和pH的降低。反过来，SPD将溶解的氧浓度保持在FPD中注册的那些。在最终时间存在植物的透明度显着高。在实验结束时注册了浮游植物的植物形态官能团变化和浮游植物功能喂养基团的差异。在人工避难所的浮游龙丰度高于水柱;根据潜在的主动/被动难民，有一种研究生物球辊的效率。

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