Soil Respiration in Different Ages of Teak Plantations in Thailand

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
本文フルテキスト
43-04-10.pdf571.53 KB

Soil respiration is a crucial carbon fiux for determining carbon balance in the forest ecosystem. In Kanchanaburi, western Thailand, we measured soil respiration at different stand ages (1, 6 and 21 year-old) of teak (Tectona grandis) plantations. There were no significant differences in soil respiration among plots of different ages. Soil respiration rates showed a clear seasonal pattern of a high rate in the rainy season from April to November and a low rate in the dry season from December to March. The contribution of organic layer, roots and soil to total soil respiration was 17, 15 and 68%, respectively, in the 6 year-old teak plantation (T-Y plot). Total soil respiration rate was significantly correlated with soil water content in the 0-30 cm layer. The annual amount of CO2 effiux from the forest fioor was estimated to be 1,062-1,154 gC m-2 y-1 in the teak plantations in 1997. In 1998, annual CO2 effiux declined to 80% of that in 1997 in the T-Y plot, probably due to low rainfall.

刊行年月日
作成者 TAKAHASHI Masamichi HIRAI Keizo LIMTONG Pitayakon LEAUNGVUTIVIROG Chaveevan SUKSAWANG Songtam PANUTHAI Samreong ANUSONTPORNPERM Somchai MAROD Dokrak
著者キーワード

carbon cycling

root respiration

soil CO2 effiux

soil moisture

tropical seasonal forest

公開者 Japan International Research Center for Agricultural Sciences
オンライン掲載日
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
43
4
開始ページ 337
終了ページ 343
DOI 10.6090/jarq.43.337
権利 Japan International Research Center for Agricultural Sciences
言語 eng

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