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Title Transcription
ナカウミ ホンジョウ スイイキ ノ スイシツ トクセイ
Title Alternative
Water Quality of the Honjyo Region in the Brackish Lake Nakaumi, 1997-1998
File
language
jpn
Author
Okumura, Minoru
Fujinaga, Kaoru
Senga, Yukiko
Oka, Hiroki
Description
The seasonal variation of water quality at the honjyo region in the brackish Lake Nakaumi was examined on the basis of the monthly data from January in 1997 to December in 1998. A significant negative correlation between salinity in the surface water at the center of Lake Nakaumi and the cumulative rainfall was found, but its correlation at Honjyo region was weak. The variation extent of salinity in the surface water was lower at the Honjyo region than at the center of Lake Nakaumi. In summer the concentrations of ammonium nitrogen phosphate phosphorus increased remarkably at the bottom layer of dredging station in the Honjyo region. Total nitrogen concentration at the Honjyo region increased after long rainy terms, 1997. The Chl.a concentration increased at the same time, reaching the high concentration of 76μg/l. Transparency at the Honjyo region was much higher than that at the center of Lake Nakaumi. The reason for this interesting phenomenon was also discussed.
Subject
water quality
transparency
nutrients
brackish lake
seasonal variation
Journal Title
Laguna : 汽水域研究
Volume
6
Start Page
1
End Page
9
ISSN
21852995
Published Date
1999-03
NCID
AN10439529
Publisher
島根大学汽水域研究センター
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Estuary Research Center
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