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  1. 070 農学部, 大学院農学研究科
  2. 0702 紀要 ・刊行物
  3. 07021 信州大学農学部紀要
  4. Vol. 44

Methane Emission Peak observed at Predawn in Tropical Paddy Field:A Case Study of Hainan Island, China

http://hdl.handle.net/10091/1046
77db12fe-b70d-43ef-8b0b-ff74471ffc21
名前 / ファイル ライセンス アクション
v44_08.pdf v44_08.pdf (543.8 kB)
Item type 会議発表論文 / Conference Paper(1)
公開日 2008-04-22
タイトル
言語 en
タイトル Methane Emission Peak observed at Predawn in Tropical Paddy Field:A Case Study of Hainan Island, China
言語
言語 eng
キーワード
主題 greenhouse gases
キーワード
主題 methane
キーワード
主題 oxidation
キーワード
主題 oxygen
キーワード
主題 photosynthesis
キーワード
主題 tropical area
資源タイプ
資源 http://purl.org/coar/resource_type/c_5794
タイプ conference paper
著者 Yang, Z

× Yang, Z

WEKO 33251

Yang, Z

Search repository
Hayakawa, T

× Hayakawa, T

WEKO 33252

Hayakawa, T

Search repository
Inoue, N

× Inoue, N

WEKO 33253

Inoue, N

Search repository
信州大学研究者総覧へのリンク
氏名 Inoue, N
URL http://soar-rd.shinshu-u.ac.jp/profile/ja.uhAmPmAF.html
出版者
出版者 信州大学農学部
引用
内容記述タイプ Other
内容記述 信州大学農学部紀要. 44(1-2): 47-51 (2008)
書誌情報 信州大学農学部紀要

巻 44, 号 1-2, p. 47-51, 発行日 2008-03-24
内容記述
内容記述タイプ Other
内容記述 Proceedings of Shinshu University International Symposium 2007 “Sustainable Agriculture and Environment:Asian Network”
抄録
内容記述タイプ Abstract
内容記述 Paddy fields is significant source of methane (CH4), a major greenhouse gas. Therefore, agro-technological developments to inhibit CH4 emission from paddy fields are required. However, little information is available on CH4 emission from paddy fields in tropical Asia. We measured CH4 gas emission to observe its diel change in a permanently flooded paddy field in which a high-yielding hybrid rice variety was established and no organic fertilizer was applied. The field study was conducted on Hainan island (latitude:19°31'N, altitude:168m) from September 21 to 26, 2006. The rice developmental stage was booting, and the leaf area index was 5.0. The CH4 flux was calculated by the eddy correlation method. The CH4 concentration was measured using a laser gas detector. The vertical wind speed was measured using an ultrasonic anemometer and atmospheric density. The CH4 flux peaks were observed at predawn, which decreased rapidly after sunrise with an increase in temperature. This diel oscillation pattern of methane flux was similar to that observed in August 2006 in a highland area of central Japan. The CH4 flux seemed to be suppressed by the photosynthesis of the rice canopy. The oxygen flux from plant top to rhizosphere increased due to photosynthesis during the daytime and inhibited methanogen activity under the ground.
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 0583-0621
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
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