Configuration of Submerged Plants for Plain River Networks Based on Transparency Improvement

The configuration of submerged plants plays an important role in the restoration river networks. In this study, Sudong River, a typical plain network southern China, was selected for plant research to improve water transparency. Analysis historical and field data River showed that most state eutrophication. main factors affecting transparency were temperature, ammonia nitrogen, chlorophyll a, total phosphorus, permanganate index, which identified through correlation analysis using SPSS. Submerged are ecological restoration, selection evaluation system constructed screen six suitable local Suzhou based on secondary indicators divided into five segments. Each evaluated scored. Finally, combination three plants, Ceratophyllum demersum, Watermifoil, Foxtail algae, their scores. This effectively improved eutrophication status increased while adhering laws succession facilitating construction stable aquatic ecosystem.