Notice of RetractionPurification of Riparian Sward-Buffer on Agricultural Runoff Pollutant

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

Agricultural runoff caused great pollution on water environment. In present study, contraposing the purification efficiency for 3 kinds of sward-buffer to runoff pollutant. The results showed that: Exposed riparian land has no reduce effect for SS in runoff, and the ratio for a 19 meter one is above 80%, the most efficacious sward is Cynodon dactylon, the reduce ratio can reach 84%, and the following are Trifolium repens and Festuca Arundinacea, the reduce ratio of which are respectivly 81% and 73%; when the influent TN concentration is lower than 10 mg·L^-1, the effluent TN concentration of seepage water of four buffer strips all lower than 2 mg·L^-1, which all reach the Grade V of Surface Water Environmental Quality Standards (Chinese EPA, 2002); when the influent TP concentration is almost 0.9~1.0 mg·L^-1, the effluent TP concentration of seepage water of four buffer strips is almost 0.08~0.34 mg·L^-1, which all lower than Grade V of Surface Water Environmental Quality Standards (Chinese EPA, 2002); through the simulating formula, the optimal width for 3 kind of sward-buffer is 16.1~20.4m when the the decrease ratio of ss is 80%, in which Cynodon dactylon is the most efficacious one.