Lake Ezu with rich spring water, which is located in the southeastern part of Kumamoto city, has been
damaged by both urban development and groundwater contamination due to nitrogenous fertilizer for
agricultural products in recent years, so that the native plants disappear and naturalized ones propagate. In
this study, field observations were carried out in order to investigate the relationships between the currents and
water qualities such as DO, SS, BOD and the water temperature in lake Ezu in November of 1997 and August
of 1998. From the three-dimensional flow velocities by ADCP and water temperature data, it is recognized
that density currents in the bottom layer of the lake took place and these currents determined water qualities in
the daytime of the summer.
雑誌名
水工学論文集
巻
45
ページ
1183 - 1188
発行年
2001-02
書誌レコードID
AN10426673
権利
社団法人 土木学会
情報源(ISBN)
09167374
フォーマット
application/pdf
形態
886164 bytes
著者版フラグ
publisher
日本十進分類法
517
その他の言語のタイトル
Horizontal Convection Currents and Water Quality Characteristics in Lake Ezu with Spring Water