感潮河川水의 陸水學的 硏究 : 漢江下流 金浦大橋附近水域의 水質變動에 관하여 Variation of Water Qualities Near the Kimpo Bridge in the Down Area of Han River = Limnological Studies on the Water of Tidal River

다국어 초록 (Multilingual Abstract)

The variation of water qualities in Kimpo of Han river was surved according to the tidal change and also investigated seasonal and regional variation of water qualities in june on summer season and in cotober on autumn season during 1979.
Between the surface and the bottom in this Kimpo of Han river the water qualities didn't found any significant difference and also didn't found any difference in periodically. Considering from the value of Cl^-, SO^-_4^2, Na and total hardness the water qualities in Kimpo of Han river may be influenced by a little of the tidal water. The content of nitrogen, Cl^-, phosphate as a pollutant was foung in autumn on dry seaon higher more than in summer on rainy season. Judging from the seasonal variation of water qualities it was more polluted in autumn on dry season than in summer on rainy season. Especially in the drying season on autumn it was considered to be influenced from the sewverly polluted waste water of Bulgwang river and Anyang river.
Compared with the water qualities in each site which have deviced 3 sampling points site 1, 2 and 3. Site 1 is north side of this area in which the waste water of Bulgwang river flow down mainly, site 2 is middle of this ares and site 3 is south side in which the waste water of Anyang river flow down mainly. In generally, the water quslities of all those sampling sites were remarkably polluted and especially in site 3 under the influence of Anyang river was found severly pollution than in site 2.
The plankton of saprobic species such as Oscillatoria sp., Vorticella sp., Spirogyra sp. and Mougeotia scalaria, which was indicated for the pollution were found much in this area. So it could recognized that the water quality of Kimpoin Han river were remarkably polluted. Also it found some brackish species of planktons such as Brachionus sp., Sinocalanus tenellus and Alona guttata in this area so it considered to be influenced more or less by tidal water.