畜産排泄物規制前後の栄養塩の流出特性 Runoff Characteristics of Nutrients Before and After Enforcement of Animal Waste Regulations

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"Law on promoting proper management and use of livestock excreta" was implemented in November 2004 prohibiting the disposal of animal wastes using unlined storage ponds. To examine the influence of the enforcement of this law, a two-year study of water quality and hydrology was conducted on a drainage canal of an area with intensive livestock production. During the irrigation period, the amount of runoff water was 337 mm, the T-P concentration decreased from 3.0 to 1.7 mg · <I>l</I><sup>-1</sup>, and the T-P load decreased from 3.2 to 1.9 kg · d<sup>-1</sup>. During the nonirrigation period, the amount of runoff water was 548 mm, the NH<sub>4</sub>-N concentration decreased from 1.9 to 1.1 mg · <I>l</I><sup>-1</sup>, the T-P concentration decreased from 2.9 to 1.8 mg · <I>l</I><sup>-1</sup>, the NH<sub>4</sub>-N load decreased from 6.3 to 1.9 kg · d<sup>-1</sup>, and the T-P load decreased from 13.1 to 2.6 kg · d<sup>-1</sup>. In addition, the number of days that irregular T-N, NH<sub>4</sub>-N and T-P concentrations were observed decreased. These results suggest that the amount of effluent containing the NH<sub>4</sub>-N and T-P from animal wastes decreased.

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 29(11), 687-692, 2006-11-10

    Japan Society on Water Environment

参考文献:  18件中 1-18件 を表示

被引用文献:  6件中 1-6件 を表示

各種コード

  • NII論文ID(NAID)
    10019371111
  • 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
    8573721
  • 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
  • DOI
    10.2965/jswe.29.687
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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