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Title
  • ja 都市集水域にある閉鎖性水域の富栄養化について
  • en ANALYSIS OF EUTROPHICATION IN ENCLOSED WATER DRAINED FROM URBAN AREAS
Creator
    • ja 加藤, 晃司 en KATO, Koji ja-Kana カトウ, コウジ
    • ja 中津川, 誠 en NAKATSUGAWA, Makoto ja-Kana ナカツガワ, マコト
Accessrights open access
Rights
  • ja Copyright 2003 土木学会 ダウンロードを含むこの著作物の利用は、著作権法の私的使用及び引用の範囲に限り認められます。その範囲外の利用については、土木学会の承諾が必要です。
Subject
  • NDC 510
  • Other en Barato River
  • Other en Eutrophication
  • Other en Water Balance
  • Other en Load Balance
Description
  • Other application/pdf
  • Abstract en The Barato River is largely an enclosed water area, the flow tends to become stagnant and the river is subject to the inflow of pollution loads from its surrounding areas. As a result, the growth of green algae and other eutrophication phenomena have emerged in recent years. To prevent the Barato River from becoming eutrophicated, it is necessary to understand the space structure and formation factors of the water quality. In this study, the focus is placed on the topographical classification of upper, middle and lower lake basins in calculating the water and load balances for each of these basins. The water and load balances are clarified in consideration of the complex outflow routes of the river water via urban sewerage. As a result, it was learned that incoming loads at times of rain and the loads from bottom sludge may be the primary supply source of suspended solids in the river. Based on the calculation results, this paper aims to comprehend characteristics related to the formation of water quality of each lake basin, in order to use these characteristics as the basic data for the purification of water quality and the preservation of the water environment.
Publisher ja 土木学会
Date
    Issued2003-02
Language
  • jpn
Resource Type journal article
Version Type VoR
Identifier HDL http://hdl.handle.net/10258/1521 , URI https://muroran-it.repo.nii.ac.jp/records/6138
Relation
  • isIdenticalTo NAID 130003841813
  • isIdenticalTo DOI https://doi.org/10.2208/prohe.47.1201
Journal
    • PISSN 09167374
    • NCID AN10426673
      • ja 水工学論文集
      • Volume Number47 Page Start1201 Page End1206
File
Oaidate 2023-12-15