Soil contains three times more carbon than the atmosphere. As climate change has become a global threat, agriculture’s ability to store more or less carbon is under close scrutiny.
We argue for an orderly transition from ‘timber mining’ to managed forestry in the tropics. Here’s a five-step plan to improve forest fates, with benefits for the climate, biodiversity and people.
Study finds almost the same amount of carbon is sequestered in mineral soil and stems in heath forests phys.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from phys.org Daily Mail and Mail on Sunday newspapers.
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Aim: To estimate loss of above-ground carbon (AGC) and conversion of live carbon to dead carbon following understorey and canopy fire. Location: South-eastern Australia. Time period: 2019–2020. Major taxa studied: Four widespread resprouting eucalypt forests. Methods: Above-ground carbon was measured in 15 plots in each of four forest types one-year post-fire. We also assessed topkill, that is, trees subject to canopy loss that failed to resprout epicormically. Results: While canopy fire was associated with greater declines in AGC than understorey fire, this was only statistically significant for only one forest type, where AGC declined from 154 to 85 Mg C ha−1 following canopy fire. Significant post-fire increases in dead AGC were observed in one forest type, where dead carbon increased from 22 to 60% after canopy fire. Topkill of trees following canopy fire (48–78% of stems) was higher than topkill after understorey fire (36–53% of stems) and in unburnt forest (12–55%). Top