Effects of different submerged macrophytes on migration and transformation of phosphorus in sediments

Effects of three submerged macrophytes, Potamogeton maackianus A. Benn., Myriophyllum spicatum L. and Ceratophyllum demersum L. on migration and transformation of phosphorus in Sediments were investigated in the greenhouse. The results indicated that NaOH-P have been absorbed and transformed obviously by Myriophyllum spicatum and Potamogeton maackianus along with the continuation of culture time, the contents is 36.9% and 33.2%, while the impact of Ceratophyllum demersum is not too obvious; With the growth of submerged macrophytes, the Olsen-p of each treatment occurs migration process, which is from non-rhizosphere to rhizosphere to submerged macrophytest, this is because of absorption of the root, of which Potamogeton maackianus and Myriophyllum spicatum are more obvious. So, the effects of control phosphorus releasing by Potamogeton maackianus and Myriophyllum spicatum in sediments are more obvious.