Systematic formulation of equations for trace-gas uptake by soil

• YONEMURA Seiichiro

  National Institute for Agro-Environmental Sciences

• NISHIMURA Seiichi

  NARO, Agricultural Research Center

• KAWASHIMA Shigeto

  Kyoto University

抄録

We systematically and explicitly derived equations to estimate trace-gas uptake by soil using closed-chamber and flow-through-chamber techniques. We began from fundamental equations and reasonable assumptions, such as first-order kinetics and constant gas concentration in chambers for surface fluxes and laboratory bulk-soil experiments (emission and uptake). The important variables are deposition velocity, uptake rate in volume per unit mass of soil, and (relative) uptake rate in volume per unit of soil volume. Units of the uptake rate in volume per unit mass of soil and the (relative) uptake rate in volume per unit of soil volume are m³ kg^-1 s^-1 and s^-1 in MKS, respectively. We discuss the concept of deposition velocity with those of destruction velocity and uptake velocity. We also mention the relatively well-conserved mass balance of surface-soil chamber measurements of trace gas uptake.

収録刊行物

• 農業気象

  農業気象 69 (4), 277-287, 2013

  日本農業気象学会

キーワード

• Chamber
• Deposition velocity
• Field
• Laboratory uptake rate

詳細情報

• CRID: 1390282679644981888
• NII論文ID: 130004446616
• NII論文ID: 40019925351
• NII書誌ID: AA11530034
• DOI: 10.2480/agrmet.69.4.5
• ISSN: 18810136
• ISSN: 00218588
• NDL書誌ID: 025111404
• Web Site: http://id.ndl.go.jp/bib/025111404
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025111404
• Web Site: https://www.jstage.jst.go.jp/article/agrmet/69/4/69_69.4.5/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可