Environmental Characterization of Periphyton Community  

作　　者：Y. M. Jo J. M. Oh J.G.Yoo 

机构地区：[1]Department of Environmental Science & Engineering, Center for Environmental Studies, Kyunghee University, Kyunggido 449-701, Kore [2]Department of Chemical Engineering, Hanseo University, Chungcheongnamdo, Korea

出　　处：《Journal of Ocean University of China》2006年第4期305-310,共6页中国海洋大学学报（英文版）

摘　　要：The present paper deals with the behavior of the Attached Microbial Community (AMC) for water self-purification at different riverbeds in a typical local river. The study quantitatively investigated the problem starting with in-situ sampling. It was found that more biomass of AMC was at riffles with wider distribution than in pools. High current velocity (HCV) plays a negative role at the initial stage of attachment on the riverbed, but HCV aids the community proliferation after stable attachment. External disturbances such as rainfalls and discharges from dams or reservoirs would detach the periphyton depending on the intensity of turbulence in water. However, it was discovered that the flock of periphyton could be restored very quickly because it was not completely removed. Thus, in order to enhance self-purification by periphyton, a suitable configuration of the riverbed must be constructed, and occasional appropriate repair along the channels would improve the decontamination of the river.The present paper deals with the behavior of the Attached Microbial Community （AMC） for water self-purification at different riverbeds in a typical local river. The study quantitatively investigated the problem starting with in-situ sampling. It was found that more biomass of AMC was at riffles with wider distribution than in pools. High current velocity （HCV） plays a negative role at the initial stage of attachment on the riverbed, but HCV aids the community proliferation after stable attachment. External disturbances such as rainfalls and discharges from dams or reservoirs would detach the periphyton depending on the intensity of turbulence in water. However, it was discovered that the flock of periphyton could be restored very quickly because it was not completely removed. Thus, in order to enhance self-purification by periphyton, a suitable configuration of the riverbed must be constructed, and occasional appropriate repair along the channels would improve the decontamination of the river.

关 键 词：PERIPHYTON RIFFLE POOL RIVERBED SELF-PURIFICATION 

分 类 号：X172[环境科学与工程—环境科学]