DSpace university logo mark
詳細検索
Japanese | English 

NAOSITE : Nagasaki University's Academic Output SITE > 070 環境科学部 > 070 学術雑誌論文 >

Material Balance of Phosphorus in a Semi-Closed Bay Calculated with Actuality Measurements and Data of an Observation Satellite over a Long Period


ファイル 記述 サイズフォーマット
JHS47_155.pdf536.53 kBAdobe PDF本文ファイル

タイトル: Material Balance of Phosphorus in a Semi-Closed Bay Calculated with Actuality Measurements and Data of an Observation Satellite over a Long Period
著者: Takao, Yuji / Ishibashi, Yasuhiro / Hyodo, Ryuji / Kohra, Shinya / Nagae, Masaki / Arizono, Koji / Hayase, Takashi / Takemasa, Takehiro
発行日: 2001年 4月
出版者: Pharmaceutical Society of Japan
引用: Journal of Health Science v.47(2) p.155-161, 2001
抄録: The material balance of phosphorus in a semi-closed bay (Omura bay) has been calculated by actuality measurements and data from an observation satellite (LANDSAT 5) over the last eleven years. It appeared that the phosphorus inflows to the bay from the 696 places of business and the twelve rivers were 293 tons/year and 20 tons/year, respectively. About 90% of the phosphorus from the places of business was released into the bay from only six sewage treatment plants. The phosphorus outflows from the bay, which occurred with the tide changes and with the catching of fish, were 219 tons/year and 7 tons/year, respectively. The urban areas inside the watershed that were calculated from the LANDSAT data using the normalized difference vegetation index (NDVI) value showed an increase each year with a wide range of variation. This slope was closer to the one showing the increasing amount of phosphorus in the bay than to the slope of the increase in population inside the watershed.
キーワード: phosphorus / material balance / remote sensing / semi-closed bay
URI: http://hdl.handle.net/10069/8363
ISSN: 13449702
DOI: 10.1248/jhs.47.155
関連リンク : http://dx.doi.org/10.1248/jhs.47.155
資料タイプ: Journal Article
原稿種類: publisher
出現コレクション:070 学術雑誌論文

引用URI : http://hdl.handle.net/10069/8363

このリポジトリに保管されている文献はすべて著作権により保護されています。
印刷やダウンロード等データの複製は、調査研究・教育または学習を目的とする場合に限定されます。

 

Valid XHTML 1.0! Copyright © 2006-2015 長崎大学附属図書館 - お問い合わせ Powerd by DSpace