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Journal of Forest Research

, Volume 19, Issue 2, pp 295–300 | Cite as

CO2 efflux from leaf litter focused on spatial and temporal heterogeneity of moisture

  • Mioko AtakaEmail author
  • Yuji Kominami
  • Mayuko Jomura
  • Kenichi Yoshimura
  • Chiyomi Uematsu
Short Communication

Abstract

Leaf litter respiration (R LL) was directly measured in situ to evaluate relationships with the water content in leaf litter (WC), which is distributed heterogeneously under natural conditions. To do so, we developed a small, closed static chamber system using an infrared gas analyzer, which can measure instantaneous R LL. This study focuses on the measurement of CO2 effluxes from leaf litter using the chamber system in the field and examines the relationship between R LL and WC among seven broadleaf species in a temperate forest. The measurements focused on the position of leaves within the litter layer, finding that both R LL and WC were significantly higher in the lower layer. The value of R LL increased with increasing WC, and the response of R LL to WC was similar among all seven species. Moreover, the temporal variation in WC differed among three species and was associated with leaf litter thickness. The observed heterogeneity in WC induced by the physical environment (e.g., position and thickness of leaf litter) affects the variation in WC and, therefore, both R LL and the decomposition rates of organic matter in the litter layer.

Keywords

Leaf litter respiration Litter decomposition Moisture Spatial and temporal variation Soil respiration 

Notes

Acknowledgments

This research was financially supported by the Nippon Life Insurance Foundation. The authors thank Ms. Iizuka Yumi of the College of Bioresource Science of Nihon University, and Dr. Dannoura Masako, Mr. Sasaki Ryushi, and Ms. Wada Yoshiko of the Laboratory of Forest Utilization of Kyoto University for their assistance with fieldwork and helpful comments on this manuscript.

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Copyright information

© The Japanese Forest Society and Springer Japan 2013

Authors and Affiliations

  • Mioko Ataka
    • 1
    Email author
  • Yuji Kominami
    • 2
  • Mayuko Jomura
    • 3
  • Kenichi Yoshimura
    • 2
  • Chiyomi Uematsu
    • 4
  1. 1.Laboratory of Forest Hydrology, Division of Environmental Science and Technology, Graduate School of AgricultureKyoto UniversityKyotoJapan
  2. 2.Kansai Research CenterForestry and Forest Products Research InstituteKyotoJapan
  3. 3.College of Bioresource SciencesNihon UniversityFujisawaJapan
  4. 4.Botanical Gardens, Graduate School of ScienceOsaka City UniversityOsakaJapan

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