人工湿地中水生植物的作用和选择

Selection and function of aquatic plants in constructed wetlands

综述国内外有关人工湿地水生植物在污水净化过程中的作用及其选择的研究成果,提出了人工湿地系统水生植物有待进一步研究的问题。人工湿地水生植物的主要作用为:吸收利用和吸附富集污染物质、传输氧到湿地系统、为微生物提供栖息地、维持系统的稳定、积累有机物质。人工湿地系统要选择栽种耐污能力强、去污效果好、适合当地环境、根系发达、有一定经济价值的水生植物。

The effects and selection of aquatic plants in constructed wetlands during the process of wastewater purifying is expounded in detail. And the issues to be further studied on aquatic plants in the constructed wetland system are presented. The main functions of aquatic plants in constructed wetlands include assimilating, utilizing, adsorbing and enriching pollutants, transmitting oxygen to the constructed wetland system, providing habitat for microorganisms, maintaining the stability of system, and accumulating organic substances. Aquatic plants planted in the constructed wetlands should be those with high tolerance against pollution, good decontamination efficiency, developed root system, and those has economic value and fit for local area.