Hydroponic Vegetables Artificial Wetlands Application

It is a global environmental problem of the eutrophication of water. A lot of experts have done many research on how to purify eutrophic water by use of altitude water plants these yeas. And much marked success has been made especially in Japan. Where, the water vegetables or flowers are planted in manual wetland, which have purified XiaPu Lake effectually, and meanwhile, brought economic benefit. This research, which is still an academic study, focuses on filtration of water plants and wipe-off rate of pollution charge. But it did not answer how to shift water plants in a full year. My study, based on moderate scale experiments, analyses these questions: 1.the filtration of water vegetables in manual wet land. 2.the purge capacity and mechanism of those kinds. 3.the optimizing combination project and basic parameters of those one. 4.the evaluation in environment and benefits. The conclusion, drown through it, is that the technology of planting water vegetables in manual wet land can bring remarkable environmental and economic benefits, which has expansive application foreground in China.