Submerged macrophytes is the foundation of maintaining creature multiplicity in water body. The instauration of submerged macrophytes is the key of ecological restoration.
沉水植物是水体生物多样性赖以维持的基础，它的恢复是水生态修复的关键，其所产生的环境效应是生态系统稳定和水环境质量改善的重要依据。
参考来源 - 沉水植物对污染水体的水质改善效应研究The main conclusions are as follows:1. The life-history strategies of submerged macrophytes were influenced by water depth gradient.
主要研究结果如下：1、水深的变化影响了沉水植物的生活史对策。
参考来源 - 环境因子对沉水植物生活史对策的影响研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
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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