九州北西部中下流域エコリージョンにおける河川環境健全度評価手法の開発

• 厳島 怜

  国土交通省総合政策局

• 島谷 幸宏

  九州大学大学院

• 中島 淳

  福岡県保健環境研究所

• 河口 洋一

  徳島大学大学院

書誌事項

タイトル別名

• THE DEVELOPMENT OF ENVIRONMENTAL INDICATOR IN THE NORTHWEST MIDSTREAM SEGMENT-BASED ECOREGIONS IN THE KYUSHU REGION

抄録

In Japan, many restoration projects and efforts to conserve the river environment were carried out across the country. In spite of these efforts, effective measures to conserve the river ecosystem or post-evaluation of the restoration project were insufficient due to a lack of environmental indicators. We established biological indicators using fish fauna in the midstream segment-based ecoregions of the northwest ecoregions based on the concept that quality of biota can be compared in the same segment-based ecoregion. Furthermore, multiple regression analysis was carried out to explain the relationship between the index value and the physical characteristic of a habitat. As a result of the multiple regression analysis, it was found that embayment increased the number of fish species. On the other hand, weir and ponding decreased it. Establishing biological indicators using the ecoregion concept enabled to compare the integrity of fish fauna between watersheds, which had been previously difficult to examine.

収録刊行物

• 土木学会論文集Ｂ１（水工学）

  土木学会論文集Ｂ１（水工学） 69 (4), I_1249-I_1254, 2013

  公益社団法人 土木学会

キーワード

• 生態学的健全度
• エコリージョン
• セグメントエコリージョン
• IBI
• 純淡水魚類相

詳細情報

• CRID: 1390282680329018752
• NII論文ID: 130004558144
• DOI: 10.2208/jscejhe.69.i_1249
• ISSN: 2185467X
• HANDLE: 10228/0002000563
• HANDLE: 10228/0002000549
• Web Site: https://kyutech.repo.nii.ac.jp/records/2000563
• Web Site: https://kyutech.repo.nii.ac.jp/records/2000549
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可