渓流・渓畔林及び砂防施設周辺におけるマイナス荷電粒子(負の空気イオン)の分布特性に関する事例的研究

DOI 日本農学文献記事索引 HANDLE Web Site オープンアクセス

書誌事項

タイトル別名
  • Distrubution Characteristics of the Negative Ion in the Vicinity of Erosion Control (Sabo) Facilities, Torrents and their Riparian Forests
  • ケイリュウ ケイハンリン オヨビ サボウ シセツ シュウヘン ニ オケル マイナス カデン リュウシ フ ノ クウキ イオン ノ ブンプ トクセイ ニ カンスル ジレイテキ ケンキュウ

この論文をさがす

抄録

The healthy environment is desirable for the visitors of the forests along torrents and Sabo facilities. Among the healthy factors concerning torrents, the negative ion is the most popular one today. In this point of view, the distribution of the negative ion was scrutinized here. The negative ion concentration was measure in the indoor experiments with falling water, as well as natural torrents with steps and pools. consequently, the following results are obtained. 1) The flat concrete apron of check dams or natural falls generates more negative ions than the apron with water cushion. 2) The negative ion concentration increases as the relative humidity of surroundings becomes higher. 3) The negative ion concentration tends to increase as the torrent discharge increases. 4) The negative ion concentrationis higher around the check dams, natural fountains. Whereas, it sometimes higher in the riparian forest than above the torrent. Eventually, the better structure of apron against falling waters for efficient generation of the negative ions is proposed, and the factors that effect the negative ion concentration was found.

収録刊行物

詳細情報 詳細情報について

問題の指摘

ページトップへ