A chamber system with automatic opening and closing for continuously measuring soil respiration based on an open-flow dynamic method

Sang Uk Suh, Young Moon Chun, Nam Yi Chae, Joon Kim, Jong Hwan Lim, Masayuki Yokozawa, Mi Sun Lee, Jae Seok Lee

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

We developed an automatic opening and closing chamber system (AOCC) based on an open-flow dynamic method (open-flow AOCC). The AOCC can be used during all four seasons, even at the surface of relatively deep snow. We compared the open-flow AOCC with two closed dynamic methods [the AOCC configured as a closed dynamic system (closed dynamic AOCC) and the LI-6400 system] under field conditions. The closed dynamic-AOCC and LI-6400 measurements were about 15.4% and 5.2% lower, respectively, than the values obtained with the open-flow AOCC. There was a significant difference in soil respiration rate between the open-flow AOCC and the closed dynamic AOCC system. In contrast, no significant difference in soil respiration rate was detected between the open-flow AOCC and the LI-6400 system. In the field, the open-flow AOCC permitted continuous long-term measurements under a range of temperature conditions and did a good job of reflecting the marked daily and seasonal variations in soil respiration as a function of soil temperature.

Original languageEnglish
Pages (from-to)405-414
Number of pages10
JournalEcological Research
Volume21
Issue number3
DOIs
Publication statusPublished - 2006 May 1
Externally publishedYes

Keywords

  • Closed dynamic method
  • Open-flow method
  • Q value
  • Soil respiration
  • Temperate deciduous forest

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

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