Decomposition of Tropical Peat Soils 2. Estimation of in situ decomposition by measurement of CO2 flux

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X

In situ decomposition of Malaysian peat soil organic matter in the field was estimated by the measurement of the CO2 flux from the soil surface. The CO2 flux ranged from 5.8 to 30.3 mmol h-1m-2, equivalent to 0.7 to 3.6 kg carbon per hour per ha. The CO2 flux was correlated with the soil acidity and ash content: the higher the soil pH and/or ash content, the greater the CO2 flux. Annual surface subsidence of arable peatland caused by the microbial decomposition of peat soil was estimated by the CO2 flux measurement to be 50-70% of the whole annual surface subsidence. Annual amount of CO2 emission from arable peatland in Peninsular Malaysia was estimated to be 2.23 × 106 t of carbon.

作成者 Shigetoshi MURAYAMA Zahari Abu BAKAR
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
開始ページ 153
終了ページ 158
言語 eng