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1993•Journal of Agricultural MeteorologyOpen access

The Significance of Grasslands in Absorption of Atmospheric Methane and Emission of Nitrous oxide

Keiichiro Minami, Takeshi Kimura

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Abstract

Presented here are measurements of methane (CH4) uptake by, and nitrous oxide (N2O) emissions from established grassland and neighboring forest-floor soils in Japan. Grassland and forest sods act as a sink of atmospheric CH4 under aerobic conditions. From ours and other data, we estimated that the uptake of CH4 by 14 ecosystem types throughout the world vary between 7 and 78 TgCH4 per year. The sink strength of grasslands would represent a maximum of about 8.5% for the total CH4 consumption by soil and other land uses.

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Presented here are measurements of methane (CH4) uptake by, and nitrous oxide (N2O) emissions from established grassland and neighboring forest-floor soils in Japan. Grassland and forest sods act as a sink of atmospheric CH4 under aerobic conditions. From ours and other data, we estimated that the uptake of CH4 by 14 ecosystem types throughout the world vary between 7 and 78 TgCH4 per year. The sink strength of grasslands would represent a maximum of about 8.5% for the total CH4 consumption by soil and other land uses.

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Available abstract

Presented here are measurements of methane (CH4) uptake by, and nitrous oxide (N2O) emissions from established grassland and neighboring forest-floor soils in Japan. Grassland and forest sods act as a sink of atmospheric CH4 under aerobic conditions. From ours and other data, we estimated that the uptake of CH4 by 14 ecosystem types throughout the world vary between 7 and 78 TgCH4 per year. The sink strength of grasslands would represent a maximum of about 8.5% for the total CH4 consumption by soil and other land uses.

Key concepts: Nitrous oxide, Grassland, Sink (geography), Environmental science, Methane, Atmospheric methane, Grassland ecosystem, Ecosystem

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