Abstract: The purification of eutrophic water body was studied by means of soilless cultiation technique on artificial substratum. In lab test, three spices plants: Oenanthe decumbens, Lolium multiflorum and Ipomoea aquatica. Forsk grew well and the removing rates of TN, NH₄-N, NO₃-N, TP, PO₄-P were as high as 80%. The soilless cultivation technique on artificial substratum was studied in order to purify the eutrophic water body and to get considerable economic benefit at the same time. The application prospect of the means was discussed also.

Key words: artificial substratum, soilless cultivation, eutrophication, economic plant

摘要： 利用富营养化水体营养盐资源，使用泡沫板、蛭石两种人工基质无土栽培水芹、水蕹菜和多花黑麦草，研究其净化污水的效果。室内试验结果，3种植物的生长状况良好。其叶长、株高、根长均有显著增长，且富营养化水体中的TN、NH₄-N、NO₃-N、TP、PO₄-P等的去除率可达80%以上。通过应用人工基质无土栽培技术将一些陆上植物用于富营养化水体的治理工程中，同时具有环境效益和经济效益。对此方法的应用前景进行了讨论。

关键词: 人工基质, 无土栽培, 富营养化, 经济植物