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凍結融解土壌の亜酸化窒素生成・排出機構にせまる

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/49061

Title: 凍結融解土壌の亜酸化窒素生成・排出機構にせまる
Other Titles: Possible processes of N2O production and emission on seasonally frozen soil
Authors: 柳井, 洋介1 Browse this author
根本, 学2 Browse this author
岩田, 幸良3 Browse this author
廣田, 知良4 Browse this author
Authors(alt): Yanai, Yosuke1
Nemoto, Manabu2
Iwata, Yukiyoshi3
Hirota, Tomoyoshi4
Keywords: 土壌凍結
亜酸化窒素(一酸化二窒素, N2O)
積雪
融雪
野外観測
Soil freezing
nitrous oxide
snow-cover
snowmelt
field observation
Issue Date: 31-Mar-2012
Publisher: 北海道大学低温科学研究所
Journal Title: 低温科学
Journal Title(alt): Low Temperature Science
Volume: 70
Start Page: 145
End Page: 151
Abstract: 季節凍土では融雪期に短期集中的な亜酸化窒素(N2O)の排出が見られる. 著者らはその現象を積雪操作実験で再現することに成功した. 本稿では2008年11月から2010年10月にわたる野外観測の結果に基づいて, 積雪深・土壌凍結深とN2Oの土壌中での蓄積・土壌から大気へのN2Oの排出の関係を考察するとともに, 未解決の課題を提示する.
Seasonally frozen soil has substantially high N2O emission under thawing conditions. We succeeded in insitu observation of the N2O emissions in a snow-cover manipulation experiment. Here, we discuss relationships among snow-cover height, soil frost depth, N2O concentration in soil and process of N2O release from soil to the atmosphere. In addition, unsolved issues are presented.
Type: bulletin (article)
URI: http://hdl.handle.net/2115/49061
Appears in Collections:低温科学 = Low Temperature Science > 第70巻

Submitter: 低温科学研究所図書室

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