Emission of nitrous oxide through a snowpack in ten types of temperate ecosystems in Japan

Yuichiro Yashiro, Shigeru Mariko, Hiroshi Koizumi

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Abstract

The release of N2O from the snow surface in winter and the soil in summer was measured in ten types of temperate ecosystems (bare ground, grassland, forest, marsh, and crop field) in Japan. The snow-covered crop field emitted by far the largest amount of N2O during the winter. Among the snow-covered natural ecosystems studied, marshy ecosystems showed the largest effluxes of N2O. Based on results showing that the magnitude of the winter N2O fluxes was not negligible compared with that of the summer N2O fluxes and because the snow period in the areas studied area is sufficiently long, we suggest that the winter N2O fluxes contribute significantly to the annual emission of N2O in the study areas.

Original languageEnglish
Pages (from-to)776-781
Number of pages6
JournalEcological Research
Volume21
Issue number5
DOIs
Publication statusPublished - 2006 Sep
Externally publishedYes

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Keywords

  • Crop land
  • Flux
  • Marshy ecosystem
  • NO
  • Snow cover

ASJC Scopus subject areas

  • Ecology

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