Diurnal change of CO2 concentration in a deciduous forest canopy; Case study in summer

• MATSUOKA Nobuhiro

  Chiba University

• TANAKA Yumiko

  Hokkaido University

• MACHIMURA Takashi

  Hokkaido University

• MATSUMURA Shinji

  Kagawa University

• AZUMA Tamaki

  Chiba University

• GOSHIMA Shun-ichi

  Chiba University

書誌事項

タイトル別名

• Diurnal change of CO₂ concentration in a deciduous forest canopy; Case study in summer

抄録

We measured CO₂ concentration in a deciduous forest canopy and compared it with wind speed, net radiation and soil respiration. On a clear day, minimum CO₂ concentration was observed at the height where the canopy was the densest. Maximum concentration was observed just above the ground before sunrise on a calm day. The concentration tended to be higher near the ground than near the top of the canopy on all days and this concentration gradient was steeper at night, resulting from the high respiration rate of the soil and from the small transport of CO₂ out of the canopy due to low wind. This suggests that the respiration rate of the soil should be considered when measuring assimilation and respiration rate of plants by the aerodynamic method.

収録刊行物

• 農業気象

  農業気象 52 (5), 485-488, 1997

  日本農業気象学会

キーワード

• carbon dioxide
• CO₂ flux
• soil respiration
• deciduous forest
• micrometeorology

詳細情報

• CRID: 1390282679645423104
• NII論文ID: 130003665877
• DOI: 10.2480/agrmet.52.485
• ISSN: 18810136
• ISSN: 00218588
• Web Site: http://www.jstage.jst.go.jp/article/agrmet1943/52/5/52_5_485/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可