Pollution-purifying agriculture in China

Recently, a new-style agricultural industry, pollution-purifying agriculture (PPA) or contamination-purifying agriculture (CPA), is proposed and carried out in China. Combination and development from established on the base of environmental engineering technological principles and methods, PPA focus on the eutrophication removing and aquatic ecosystem remediation by using the advanced constructed wetland system and modern agricultural techniques. High value farm produce, such as vegetable, is provided in the process of controlling pollutant discharge to the environment by the constructed wetland system. The advantages of such an industry are obvious. First and foremost, there would be positive effect in environmental quality. Moreover, the products which were provided by constructed wetland system would increase the incoming of the involvers and help to maintain the running of contamination-purifying system. In this article, the concept and characters of PPA were introduced; the researches and development in PPA related field were reviewed; the prospects, chances and challenges of PPA in China were discussed.