Water flow can affect structure of the community and species distribution, as well as the production, metabolic processes and morphological characteristics of macrophytes.
水流不仅能影响水生植物群落结构和物种分布，还能影响其繁殖传播、新陈代谢过程和形态特征。
Submerged macrophytes are the key factor determining nutritional status of phosphorus in a lake.
沉水植物是影响湖泊磷营养状态的重要因素。
So it is necessary to study synthetically the water effect made by submerged macrophytes on polluted water body.
所以系统研究沉水植物对污染水体所产生的水质改善效应是必要的。
Hydrological characteristics, such as water level and water flow, are significant factors influencing macrophytes.
水位、水流等水文特征是影响水生植物的重要因素。
The water improvement effects from different kinds of submerged macrophytes were studied according to contrastive experiments.
通过试验对比研究不同种类沉水植物对水质的改善效应；
The water improvement effects from different kinds of submerged macrophytes were studied according to contrastive experiments.
通过试验对比研究不同种类沉水植物对水质的改善效应；
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