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  1. 020 教育学部
  2. 20 紀要
  3. 02 新潟大学教育人間科学部紀要 自然科学編
  4. 第8巻第2号
  1. 0 資料タイプ別
  2. 03 紀要論文

飯山市西方大川層中の関屋テフラ層(SK)と新潟地域および掛川層群のテフラ層との対比

http://hdl.handle.net/10191/2057
http://hdl.handle.net/10191/2057
dfd6955c-9a34-4c0d-9908-a409ea473fcd
名前 / ファイル ライセンス アクション
KJ00004355656.pdf KJ00004355656.pdf (13.2 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2007-05-10
タイトル
タイトル 飯山市西方大川層中の関屋テフラ層(SK)と新潟地域および掛川層群のテフラ層との対比
タイトル
言語 en
タイトル 飯山市西方大川層中の関屋テフラ層(SK)と新潟地域および掛川層群のテフラ層との対比
言語
言語 jpn
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
その他のタイトル
その他のタイトル Widearea correlation of the Sekiya Tephra Bed in the Ogawa Formation in the western Iiyama City to the Niigata region and Kakegawa Group, central Japana
著者 黒川, 勝己

× 黒川, 勝己

WEKO 157381

黒川, 勝己

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大橋, 明美

× 大橋, 明美

WEKO 157382

大橋, 明美

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青木, 豊樹

× 青木, 豊樹

WEKO 157383

青木, 豊樹

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樋口, 裕也

× 樋口, 裕也

WEKO 157384

樋口, 裕也

Search repository
著者別名
識別子 157385
識別子Scheme WEKO
姓名 Kurokawa, Katsuki
著者別名
識別子 157386
識別子Scheme WEKO
姓名 Ohashi, Akemi
著者別名
識別子 157387
識別子Scheme WEKO
姓名 Aoki, Toyoki
著者別名
識別子 157388
識別子Scheme WEKO
姓名 Higuchi, Yuya
抄録
内容記述タイプ Abstract
内容記述 Limnological studies of Lake Mitarasegata (N37°49′, E138°53′, altitude: 5m, area: 9ha, length: 1km, width: 0.08km) were conducted from April 2000 to February 2002 with special reference to nutrient dynamics and phytoplankton growth. This lake is belonging to one of sand dune lakes, which are rare from the viewpoint of lake origin in Japan. This lake is fed by spring water and rainwater directly poured to the lake. High concentrations of nitrogen, especially nitrate in spring water, probably originated from fertilizers used around the lake, were determined in St.2, where seemed to be spring area. Nitrate decreased toward the outlet of lake, whereas very high concentrations of chlorophyll-a, up to 300 (μg/L), were detected at the lake center (St.3). A half of the lake was covered by vegetation of Nelumbo nucifera that reached a maximum growth in the end of August. In this area (St.4), growth of phytoplankton was suppressed by the growth of Nelumbo (Fig.16), suggesting a nutrient uptake competition. A high concentrations of Cl^- equally equivalent to Na^+ in lake water (Fig.14) suggest the addition of NaCl from the out side of the lake. This lake should be given urgently a conservation plan from the point of protection of waterfowls and reduction of eutrophication.
書誌情報 新潟大学教育人間科学部紀要 自然科学編
en : 新潟大学教育人間科学部紀要 自然科学編

巻 8, 号 2, p. 51-85, 発行日 2006-02
出版者
出版者 新潟大学教育人間科学部
ISSN
収録物識別子タイプ ISSN
収録物識別子 13442961
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA11276235
著者版フラグ
値 publisher
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