Sentences with phrase «peat accumulation»

Net organic matter accumulation generally was greater in unfrozen bogs and internal lawns than in the permafrost landforms, suggesting that surface permafrost inhibits peat accumulation and that degradation of surface permafrost stimulates net carbon storage in peatlands.

Here, we explore the influence of differing permafrost regimes (bogs with no surface permafrost, localized permafrost features with surface permafrost, and internal lawns representing areas of permafrost degradation) on rates of peat accumulation at the southernmost limit of permafrost in continental Canada.

It's been predicted that much or all of the Everglades will disappear as the sea level rises, but the key to the Everglades» fate is the rate of peat accumulation in the ring of mangroves that effectively act as dikes to keep out the sea.

Not exact matches

By using dual radioactive tracers with differing lifetimes, Wilson et al. [2017] found short term increases in CH4 and CO2 release during periods of thaw in a discontinuous permafrost were generally offset by long - term accumulation of peat in the ensuing millennia, leading the regions to continue to be net carbon sinks with negative atmospheric radiative forcing, given the long life - time of atmospheric CO2.

The terrestrial balance of respiration and photosynthesis is also affected — in soils and especially in regions of peat moss accumulation.

Hergoualc» h explains that in their natural state, peatlands are flooded for part of the year, leading to a slow decomposition of organic matter deposited by plants, and eventual accumulation of carbon in the form of peat.

We suggest the low accumulation rates are due to repeated burning of the peat surface.

Emissions of CO2 were highest from peat incubated in the localized permafrost feature, suggesting that slow organic matter accumulation rates are due, at least in part, to rapid decomposition in surface permafrost peat.