Factors Controlling Diatom Species Composition in Agricultural Reservoirs in Awajishima Island, Japan
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- KATOH Kazuhiro
- 東京大学大学院農学生命科学研究科附属緑地植物研究所
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- ZHANG Dongqin
- 東京大学大学院農学生命科学研究科附属緑地植物研究所
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- ICHINOSE Tomohiro
- 姫路工業大学自然・環境科学研究所
Bibliographic Information
- Other Title
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- 淡路島のため池における付着珪藻群集の種組成に関与する要因
- アワジシマ ノ タメイケ ニ オケル フチャク ケイソウ グンシュウ ノ シュ ソセイ ニ カンヨ スル ヨウイン
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Abstract
Agricultural reservoirs are now regarded as important habitats for some aquatic organisms, though their value as habitats of algae has clarified little. Diatom is often the most dominant component of freshwater algal communities and its contribution to species diversity can not be negligible. We studied periphytic diatom assemblages in 24 agricultural reservoirs in Awajishima Island, Japan to find major factors controlling diatom species composition. As it has often been reported and discussed, influence of eutrophication to species composition was detected. However, surrounding land cover was estimated to be the most important factor: some dystrophic or soil diatoms characterized diatom assemblages in reservoirs surrounded by woodland. Compositional difference caused by substrate was not detected. It is concluded that water quality management considering eutrophication and land use management where conservation priority is put on woodlands surrounding reservoirs are possible means to conserve diatom assemblages in agricultural reservoirs.
Journal
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- Journal of The Japanese Institute of Landscape Architecture
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Journal of The Japanese Institute of Landscape Architecture 67 (5), 511-514, 2004
Japanese Institute of Landscape Architecture
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Details 詳細情報について
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- CRID
- 1390001205671401856
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- NII Article ID
- 110004308140
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- NII Book ID
- AN10455955
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- ISSN
- 13484559
- 13408984
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- NDL BIB ID
- 6949017
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed