Carbon cycle
Amazon forest carbon is highly seasonal
Open access · cc by · source: Europe PMC
An Amazon forest stored about four times more carbon in the dry season than the wet season.
How this study connects
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Amazon forest carbon is highly seasonal
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The carbon sink increased about four times from wet to dry season.
the strength of the carbon sink increases by approximately four times from wet
Dry-season heterotrophic respiration fell by 36%.
This seasonal change was caused by the 36% reduction in dry season R h
Key findings
Annual GPP 3756.7 gC m−2 yr−1 exceeded Reco; dry-season NEE was about four times stronger; heterotrophic respiration fell 36% in the dry season; CUE was 0.36.
Methodology
Assimilated eddy-covariance and biometric data into a carbon model with separate wet- and dry-season parameters for a seasonal Amazonian forest.
Limitations
Does not show that all Amazon forests share this fourfold dry-season sink.
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