琵琶湖の水質保全対策の評価に関する研究 : 水質保全対策の効果と水質環境容量との比較 Assessment of Various Water Quality Preservation Scenarios for Lake Biwa : comparison of the effect of each scenario and the carrying capacity of Lake Biwa

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著者

    • 金 再奎 KIM Jaegyu
    • 京都大学大学院工学研究科環境地球工学専攻 Department of Global Environment Engineering, Kyoto University
    • 原田 茂樹 HARADA Shigeki
    • 京都大学大学院工学研究科環境地球工学専攻 Department of Global Environment Engineering, Kyoto University
    • 内藤 正明 NAITO Masaaki
    • 京都大学大学院工学研究科環境地球工学専攻 Department of Global Environment Engineering, Kyoto University

抄録

The present study attempts to determine the effects and limits of current water-quality preservation measures. The target region was the watershed of Lake Biwa. We also suggest future directions for watershed management.<br>The carrying capacity of COD, TN, TP of Lake Biwa estimated by multiplying the allowable concentration of pollutant loads by the volume of inflow. The allowable TN, TP concentration of inflow was determined using Vollenweider's model. Separately, the allowable COD concentration of inflow was determined by subtracting "produced COD concentration in the lake" from environment standard concentration.<br>The carrying capacity of Lake Biwa was estimated to be 1.4, 2.7, and 0.59kton·y<sup>-1</sup> of COD, TN, and TP, respectively.<br>Under a scenario of an increasing number of pollution abatement measures, even under the strictest of scenarios, COD and TN loads would still surpass the carrying capacity by 4.6 and 1.8 times, respectively.<br>The results of the present study demonstrate that there is a limit to the degree to which the water quality at Lake Biwa can be controlled via the implementation of tichnological measures. Therefore, the concept of growth management, which rationalizes social economic activity itself within the watershed, is indispensable for future watershed management.

収録刊行物

  • 水環境学会誌 = Journal of Japan Society on Water Environment

    水環境学会誌 = Journal of Japan Society on Water Environment 24(12), 837-843, 2001-12-10

    Japan Society on Water Environment

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各種コード

  • NII論文ID(NAID)
    10008006123
  • NII書誌ID(NCID)
    AN10372439
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09168958
  • NDL 記事登録ID
    6007332
  • NDL 雑誌分類
    ZN5(科学技術--建設工学・建設業--都市工学・衛生工学)
  • NDL 請求記号
    Z16-1045
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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