中国湖区水体环境污染问题日趋严重，典型的污染 形式是面源污染造成的水体富营养化。为此利用水上生物浮岛，探索油菜水上移栽技术，通 过油菜生长代谢吸收水体中的氮磷等，在治理水体污染的同时，将水体中的氮磷等转化成农产品。

The eutrophication caused by nonpoint pollution is th e typical water environment pollution in Chinas deteriorating lakes. The aim o f this study is to probe the waterculturing technique of a rape by the use of ar tificial floating rafts so that the nutrient nutrition, such as nitrogen and pho sphorus, could be extracted from the polluted water. By this approach, the lake eutrophication in the lake will be better treated while the nitrogen and phospho rus are absorbed into the rape.