Influence of water quality change in Fu River on Wetland Baiyangdian

Abstract

Fu River is the only river that has perennial flow into Wetland Baiyangdian and is mainly composed of living sewage and industrial wastewater from Baoding city. Pollutant concentrations were monitored at three sections in the upstream, midstream, and downstream of Fu River and water quality in Wetland Baiyangdian was monitored at seven monitoring sites from 2001 to 2005. Results show that pollutant concentrations in Fu River and pollution load entering Wetland Baiyangdian generally increased during 2001―2005. On average, the concentrations of COD_Mn and BOD₅ increased by 46.5% and 50% from 2001 to 2005 in Fu River and COD_Mn increased by 17% in Wetland Baiyangdian. The total amount of COD_Mn and BOD₅ entering Wetland Baiyangdian increased from 1630 and 997t/a to 2243 and 1583 tons/year from 2001 to 2005, respectively. Total amount of water within the wetland and non-point source pollution input from surrounding areas also influenced the water quality in the wetland.

Keywords

Fu River / water quality / Wetland Baiyangdian