国立研究開発法人 国際農林水産業研究センター | JIRCAS

Methane Emission from Paddy Fields in Northern Thailand

JIRCAS Journal
ISSN
13407686
書誌レコードID(総合目録DB)
AA11030483
本文フルテキスト

Seasonal variations of CH4 flux, soil Eh and soil temperature were determined in paddy fields at Phitsanulok, San Pa Thong and Phrae for the major and the second rice croppings*. The average values of the CH4, fluxes measured for the major rice at Phitsanulok, San Pa Thong and Phrae were 7.4, 16.1 and 22.2 mg m-2 h-1 respectively, and for the second rice 6.6, 8.8 and 15.9 mg m-2 h-1, respectively. The CH4 emission from Phrae paddy field in the second rice was higher than that of San Pa Thong due to the high content of fresh organic materials and abundant water supply.
The estimated seasonal emissions for the major rice at Phitsanulok, San Pa Thong and Phrae were 17.4, 39.8 and 68.2 gm-2, respectively, and for the second rice 17.9, 21.3 and 48.5 g m-2, respectively. The high estimated seasonal emission of CH4, at Phrae was attributed to the longer duration of the flooding period and higher CH4, flux values than at the other two sites.

刊行年月1999-03-01
作成者Kunihiko KATOHPrapai CHAIROJKazuyuki YAGIHaruo TSURUTAKatsuyuki MINAMIWisit CHOLITKUL
著者キーワードfresh organic materialglobal warmingmethane fluxpaddy soil
公開者Japan International Research Center for Agricultural Sciences
データ作成日1999-03-01
国立情報学研究所メタデータ主題語彙集(資源タイプ)Journal Article
7
開始ページ77
終了ページ85
権利Japan International Research Center for Agricultural Sciences
言語eng