Distribution characteristics of phosphorus in the sediments and overlying water of Poyang lake.

ABSTRACT: Phosphorus (P) is a key indicator of the aquatic organism growth and eutrophication in lakes. The distribution and speciation of P and its release characteristics from sediments were investigated by analyzing sediment and water samples collected during high flow and low flow periods. Results showed that the average concentrations (ranges) of total phosphorus (TP) in the surface and deep water were 0.06 mg L(-1) (0.03-0.13 mg L(-1)) and 0.15 mg L(-1) (0.06-0.33 mg L(-1)), respectively, while the average concentration (range) of TP in sediments was 709.17 mg kg(-1) (544.76-932.11 mg kg(-1)). The concentrations of TP and different forms of P varied spatially in the surface sediments, displaying a decreasing trend from south to north. P also varied topographically from estuarine areas to lake

SUBMITTER: Wang L 

PROVIDER: S-EPMC4418821 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature