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  1. 040 理学部
  2. 0401 学術論文

Methane exchange in a poorly-drained black spruce forest over permafrost observed using the eddy covariance technique

http://hdl.handle.net/10091/00018704
http://hdl.handle.net/10091/00018704
b6543dcf-b5d3-4acd-9c72-dda1bc896211
名前 / ファイル ライセンス アクション
Methane_exchange_in_a_poorly-drained_black.pdf Methane_exchange_in_a_poorly-drained_black.pdf (2.1 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2016-03-23
タイトル
言語 en
タイトル Methane exchange in a poorly-drained black spruce forest over permafrost observed using the eddy covariance technique
言語
言語 eng
キーワード
主題Scheme Other
主題 Boreal forest
キーワード
主題Scheme Other
主題 CH4 flux
キーワード
主題Scheme Other
主題 Path analysis
キーワード
主題Scheme Other
主題 Spatial variability
キーワード
主題Scheme Other
主題 Thaw depth
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Iwata, Hiroki

× Iwata, Hiroki

WEKO 50128

Iwata, Hiroki

Search repository
Harazono, Yoshinobu

× Harazono, Yoshinobu

WEKO 50129

Harazono, Yoshinobu

Search repository
Ueyama, Masahito

× Ueyama, Masahito

WEKO 50130

Ueyama, Masahito

Search repository
Sakabe, Ayaka

× Sakabe, Ayaka

WEKO 50131

Sakabe, Ayaka

Search repository
Nagano, Hirohiko

× Nagano, Hirohiko

WEKO 50132

Nagano, Hirohiko

Search repository
Kosugi, Yoshiko

× Kosugi, Yoshiko

WEKO 50133

Kosugi, Yoshiko

Search repository
Takahashi, Kenshi

× Takahashi, Kenshi

WEKO 50134

Takahashi, Kenshi

Search repository
Kim, Yongwon

× Kim, Yongwon

WEKO 50135

Kim, Yongwon

Search repository
信州大学研究者総覧へのリンク
氏名 Iwata, Hiroki
URL http://soar-rd.shinshu-u.ac.jp/profile/ja.WCAaPafh.html
出版者
出版者 ELSEVIER SCIENCE BV
引用
内容記述タイプ Other
内容記述 AGRICULTURAL AND FOREST METEOROLOGY. 214(0):157-168 (2015)
書誌情報 AGRICULTURAL AND FOREST METEOROLOGY

巻 214, p. 157-168, 発行日 2015-12-15
抄録
内容記述タイプ Abstract
内容記述 Ecosystem-scale methane (CH4) exchange was observed in a poorly-drained black spruce forest over permafrost in interior Alaska during the snow-free seasons of 2011–2013, using the eddy covariance technique. The magnitude of average CH4 exchange differed depending on wind direction, reflecting spatial variation in soil moisture condition around the observation tower, due to elevation change within the small catchment. In the drier upper position, the seasonal variation in CH4 emission was explained by the variation in soil water content only. In the wetter bottom, however, in addition to soil temperature and soil water content, seasonal thaw depth of frozen soil was also an important variable explaining the seasonal variation in CH4 exchange for this ecosystem. Total snow-free season (day of year 134–280) CH4 exchanges were 12.0 ± 1.0, 19.6 ± 3.0, and 36.6 ± 4.4 mmol m−2 season−1 for the drier upper position, moderately wet area, and wetter bottom of the catchment, respectively. Observed total season CH4 emission was nearly one order smaller than those reported in other northern wetlands, due probably to the relatively low ground water level and low soil temperature. The interannual variation of total snow-free season CH4 emission in the wetter bottom of the catchment was influenced by the amount of rainfall and thaw depth. On the other hand, in the drier upper position the amount of rainfall did not strongly affect the total season CH4 emission. Different responses of CH4 exchange to environmental conditions, depending on the position of a small catchment, should be considered when estimating the spatial variation in CH4 exchange accurately in ecosystems over permafrost.
資源タイプ(コンテンツの種類)
内容記述タイプ Other
内容記述 Article
ISSN
収録物識別子タイプ ISSN
収録物識別子 0168-1923
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA10499788
DOI
識別子タイプ DOI
関連識別子 https://doi.org/10.1016/j.agrformet.2015.08.252
関連名称 10.1016/j.agrformet.2015.08.252
権利
権利情報 © 2015. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
WoS
表示名 Web of Science
URL http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000364730000015
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