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THE PROBLEMS OF RESTORING LARGE, SHALLOW LAKES.
http://hdl.handle.net/10091/1942
http://hdl.handle.net/10091/1942ebe19b90-4289-4fc7-82d9-47647f5357ca
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2009-02-27 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | THE PROBLEMS OF RESTORING LARGE, SHALLOW LAKES. | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | eutrophication | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | lake restoration | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | internal recycling | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | bioturbation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | lake margins | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | water levels | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
著者 |
Jewson, D.H.
× Jewson, D.H.× Zlinszky, J. |
|||||
出版者 | ||||||
出版者 | 信州大学理学部 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 信州大学理学部付属諏訪臨湖実験所報告 7: 9-19(1991) | |||||
書誌情報 |
信州大学理学部付属諏訪臨湖実験所報告 巻 7, p. 9-19, 発行日 1991-03 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The problems of restoring eutrophic, shallow lakes are discussed using examples from three lakes with different surface areas, e.g., L.Neagh (N. Ireland), L.Balaton (Hungary) and L.Suwa (Japan). The water quality in each lake has undergone marked deteriorations during this century and all of them were considered hypertrophic by the late 1970's. Improved sewage treatment was installed and although they all showed some initial recovery (max. chl a down by 25 - 33% by 1984), since then further improvement has been much slower. Two of the main reasons for this are internal recycling and the in-wash of nutrients from non-point sources. In considering the restoration plans for the three lakes, it is important to include inshore areas. Each of these lakes has been lowered and their annual water level fluctuations controlled. To highlight the major ecological problems associated with such changes, L.Neagh, which has a largely 'undeveloped' shoreline but where rare post-glacial habitats are endangered, is compared to L.Balaton, now one of Central Europe's most popular resorts. | |||||
資源タイプ(コンテンツの種類) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00089817 | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |