Spatial distribution of phosphorus in sediments at the Caohai lakeshore area.

This study investigated the distribution and changes in phosphorus (P) forms within surface and column sediments collected from the lakeshore area of Caohai, Dianchi Lake. Results showed that the sediments of the Caohai lakeshore area were high in total phosphorus (TP), with a maximum value of 2,452 mg·kg^-1. The variation in P content within sediments from various regions was large. Inorganic phosphorus (IP) was the major part of TP. The Fe, Al, and Mn oxide and hydroxide (Fe/Al-P) content was higher than the calcium bound P content. This will facilitate the release of P into the water. [ABSTRACT FROM AUTHOR]