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| Applicability of Biofilm Monitoring Method to Water Combined Pollution in Baiyangdian Basin |
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| KeyWord:biofilm; biomonitoring; combined pollution; Baiyangdian Basin |
| Author Name | Affiliation | | WANG Xue-mei | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
School of Animal Science，College of Xichang，Xichang 615013, China |
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| Abstract: |
| Biofilms respond to different pollutants and could be regarded as a community-level monitoring system for aquatic ecosystems. In this study, we highlighted the potential application of biofilms as a biomonitor in different water bodies in Baiyangdian basin using in situ biofilm formed on carbon-fiber membrane. The correlation between biofilm attributes and water quality was analyzed. The structure and function of biofilms were similar between natural substrates and carbon-fiber membrane in different water bodies in Baiyangdian basin. The biofilms on carbon-fiber membrane after 15 day culture could reflect the situations of different water bodies and be used for ecological monitoring of water quality in Baiyangdian Basin. Biofilms reflected the variation of water quality and main pollutants under complex pollution. Redundancy analysis（RDA） indicated that water quality index explained 63.0% variance of biofilm. The correlation between water quality index and biofilm was in order of DO>TN>CODMn>COD>BOD>Ecoli>TP>NO3-N. The present results suggest that biofilm on carbon-fiber membrane could be recommended as a biomonitor for different water bodies in basin scale. |
