ため池の管理放棄と改廃による水域生態系への影響：人口減少で何が起きるか？

DOI Web Site オープンアクセス

書誌事項

タイトル別名
  • Ecological impacts of pond losses and abandonments on regional aquatic biodiversity: What will happen in the depopulating Japan?
  • タメイケ ノ カンリ ホウキ ト カイハイ ニ ヨル スイイキ セイタイケイ エ ノ エイキョウ : ジンコウ ゲンショウ デ ナニ ガ オキル カ?

この論文をさがす

抄録

<p> Ponds are small waterbodies holding unique biota and relative-higher biodiversity than other freshwater ecosystems (i.e., rivers, lakes and streams). In Japan, irrigating farm ponds are typical lentic environments in Satoyama landscapes. Currently, however, there is growing concern for pond conservation because of declines and abandonments of ponds across the country. Japanese population number has started depopulating in 2011 and was estimated decreasing to about two-thirds in 2060. The social change in future Japan can affect agricultural landscapes, including farm ponds. In the paper, I reviewed and discussed ecological effects of pond abandonments on aquatic ecosystems, owing to the depopulation in future Japan. If farm ponds are abandoned, aquatic biodiversity drastically degrade and then most of aquatic species disappear, owing to vegetation succession. Although it needs maintaining operations (e.g., mowing and dredging) for conserving aquatic biota in farm ponds, it will be difficult in depopulated/abandoned settlements. I here suggested new systems and frameworks for conservation of pond ecosystems under the depopulating situation.</p>

収録刊行物

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ