河口域の干潟における脱窒能の評価  [in Japanese] Denitrification Activities in Tidal Flat.  [in Japanese]

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Author(s)

Abstract

The objective of this study is to evaluate the role of tidal action and benthic animals such as seaworm in denitrification activities of the tidal flat in Tamagawa river through the field investigation. It was regularly observed that only NO<sub>3</sub>-N concentrations in interstitial water in surface layers of the tidal flat sediment changed with a high-low tidal action. The 24-hour survey showed that the changes in NO<sub>3</sub>-N concentrations in interstitial water were observed regularly through the tidal action cycle. Based on the tidal action-dependent decrease of NO<sub>3</sub>-N concentrations, denitrification rates were calculated. The apparent denitrification rates show that (i) water temperature, (ii) NO<sub>3</sub>-N concentrations in surface water, (iii) tidal level difference between high- and low-tides, and (iv) existence of benthic animal's burrow affect denitrification activity of the tidal flat sediment.

Journal

  • Journal of Japan Society on Water Environment

    Journal of Japan Society on Water Environment 24(11), 773-777, 2001-11-10

    Japan Society on Water Environment

References:  12

Cited by:  2

Codes

  • NII Article ID (NAID)
    10008006075
  • NII NACSIS-CAT ID (NCID)
    AN10372439
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    09168958
  • NDL Article ID
    5975884
  • NDL Source Classification
    ZN5(科学技術--建設工学・建設業--都市工学・衛生工学)
  • NDL Call No.
    Z16-1045
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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