Climate Change - Soil

This page presents notes on scientific published articles related to Soil.

Article: "Rapid Early Development of Circumarctic Peatlands and Atmospheric Methane and Carbon Dioxide Variations." Development of current circumarctic peatlands began 16,500 years ago, expanded rapidly 8-12,000 years ago during high summer insolation and increasing temperature. Peatland development contributed to sustained peak of methane at 650 parts per billion for 1500 years. Decline in peatland initiation follows decline in atmospheric methane and carbon dioxide from 10,000 years ago to 6000 years ago. Decline in peatland initiation from 6000 years ago to 1700 A.D. does not follow rise in methane and carbon dioxide, so must have some other non-manmade source. Source: Science, Volume 314, Number 5796. Date: 2006 October 13

Article: "Ongoing Buildup of Refractory Organic Carbon in Boreal Soils During the Holocene." Turnover time of carbon in soil may be 10 times longer than previously assumed. Organic carbon continues to build up in soils since last glacial age. Source: Science, Volume 314, Number 5803. Date: 2006 November 24

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Last updated: 2007 Nov 24.
Global Warming and Climate Change
Copyright (C) 2007 Ken Polsson (email: kpolsson@islandnet.com)
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