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。
So it is necessary to study synthetically the water effect made by submerged macrophytes on polluted water body.
研究生物量对不同沉水植物水质改善效应的影响,从试验得出生物量的影响结果,为工程应用提供参考;
Study the biomass impact on water improvement effect by different kinds of submerged macrophytes. The results interpreted from the experiments provide the reference to project.
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.
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