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Title Transcription
コヤマイケ ノ コテイ タイセキブツ ニ ホウマイ サレル ケイソウ カラ ミタ コカンキョウ ヘンカン
Title Alternative
Diatom Remains and its Vertical Change of the Core Samples from Lake Koyama-ike, Tottori Pref., Southwest Japan
File
language
jpn
Author
Hamada, Tetsuhiro
Sakuno, Yuji
Takayasu, Katsumi
Akagi, Saburo
Nishida, Ryohei
Tanaka, Zenzo
Murata, Yuji
Asamura, Hisashi
Fukuta, Keiko
Description
For understanding paleoenvironmental changes, an analysis of diatom of a core KY 9401 from Lake Koyama-ike was carried out. The results are summarized as follows: 1) 23 species in 41 genera were identified in diatom in the core. 2) Most dominant species of diatoms in the core are a limnetic Melosira granulata, and other diatoms are also limnetic species. 3) That many kinds of diatoms in the core are limnetic or brackish species indicates that the environments of the lower part of the core had slightly higher saline that the present environments have. 4) Since the number of diatoms found in the layer upper than 54 cm from the top and the number of diatoms found in the layer lower than that differ markedly, it is considered that water quality environments in Lake Koyama-ike changed at that time. 5) Many species living in the moderately polluted environments are found in the part upper than 20 cm in the core, which reflects the recent pollution of the lake.
Subject
diatom remains
paleoenvironmental change
core sample
Lake Koyama-ike
Journal Title
Laguna : 汽水域研究
Volume
9
Start Page
9
End Page
17
ISSN
21852995
Published Date
2002-03
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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