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ID 40796
file
title alternative
Some physico-chemical features of Kumano Reservoir
creator
Murachi, Shiro
Takahashi, Masao
Karakawa, Yoshiko
Kawamoto, Shinji
NDC
Construction. Civil engineering
abstract
1. Kumano Freshwater Biological Station of Hiroshima University is located below Kumano Reservoir and is supplied with cold water which exists under the thermocline in the reservoir, during the stagnation period.
2. In order to operate the station more effectively, the annual changes in the physico-chemical features of the riservoir were investigated (as shown in fig. 3-15)
3. The date of the beginning of thermal stagnation in the reservoir was from late March to early April, and that of the ending from late October to early Nobember.
4. During the midsummer period of com plate stagnation, the thermocline existed from 3 m to 5 m depth, and the surface water temperature rose to above 30oC, but that of the hypolimnion was below 20°C. The saturation degree of dissolved oxygen in the water of the hypolimnion was under 5%.
5. From September to October, considerable amounts of NH3 -N, Fe and H 2S were observed in the bottom water.
journal title
Journal of the Faculty of Fisheries and Animal Husbandry, Hiroshima University
volume
Volume 7
issue
Issue 2
start page
243
end page
257
date of issued
1968-09-30
publisher
広島大学水畜産学部
issn
0440-8756
ncid
language
jpn
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
department
Graduate School of Biosphere Science
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