Dating recent peat deposits poppy montgomery dating

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It is composed mainly of wetland vegetation: principally bog plants including mosses, sedges, and shrubs. This slowly creates wetter conditions that allow the area of wetland to expand.Peatland features can include ponds, ridges, and raised bogs.naturally released from the peat, maintaining an equilibrium.In natural peatlands, the "annual rate of biomass production is greater than the rate of decomposition", but it takes "thousands of years for peatlands to develop the deposits of 1.5 to 2.3 m [4.9 to 7.5 ft], which is the average depth of the boreal [northern] peatlands".

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Although humans have many uses for peat, it presents severe problems at times.By volume, there are about 4 trillion cubic metres (5.2 trillion cubic yards) of peat in the world, covering a total of around 2% of the global land area (about 3 million square kilometres or 1.2 million square miles), containing about 8 billion terajoules of energy.Peat forms when plant material does not fully decay in acidic and anaerobic conditions.Peat forms in wetland conditions, where flooding obstructs the flow of oxygen from the atmosphere, slowing the rate of decomposition.although less-common wetlands including fens, pocosins, and peat swamp forests also deposit peat.

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