Plant roots increase carbon emission from permafrost soils

ScienceDaily
Jul 20, 2020, 11:23 am139 pts
A key uncertainty in climate projections is the amount of carbon emitted by thawing permafrost in the Arctic. Plant roots in soil stimulate microbial decomposition, a mechanism called the priming effect. An international research team shows that the priming effect alone can cause emission of 40 billion tonnes…

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