Research press release


Nature Geoscience

Peatland carbon loss

水の損失は、泥炭地の浸食作用を悪化させ、その結果、地表の温度が上昇すると、より多くの土壌中の炭素が二酸化炭素として放出される、とNature Geoscience(電子版)の研究が示している。


Water loss will exacerbate peatland degradation, resulting in more soil carbon being released as carbon dioxide as surface temperatures rise, suggests a study online this week in Nature Geoscience.

Peatlands store large amounts of carbon owing to the low rates of carbon breakdown in cold, waterlogged soils. Takeshi Ise and colleagues use a soil physical?biogeochemical-coupled model to examine the effect of water table height on peatland decomposition. Lowering the water table increases peat loss, which further enhances water loss, setting in motion a positive feedback that significantly increases decomposition of soil organic carbon under climate change. In a long-term simulation, an experimental warming of 4 degrees Celsius causes soil organic carbon loss of 40% from shallow peat and 86% from deep peat, when these feedbacks are included.



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doi: 10.1038/ngeo331


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