Carbon carrying capacity in primary forests shows potential for mitigation achieving the European Green Deal 2030 target

Keith, Heather, Kun, Zoltàn, Hugh, Sonia, Svoboda, Miroslav, Mikoláš, Martin, Adam, Dusan, Bernatski, Dmitry, Blujdea, Viorel, Bohn, Friedrich, Camarero, Jesús Julio, Demeter, László, Di Filippo, Alfredo, Dutcă, Ioan, Garbarino, Matteo, Horváth, Ferenc, Ivkovich, Valery, Jansons, Āris, Ķēņina, Laura, Kral, Kamil, Martin-Benito, Dario, Molina-Valero, Juan Alberto, Motta, Renzo, Nagel, Thomas A., Panayotov, Momchil, Pérez-Cruzado, César, Piovesan, Gianluca, Roibu, Cătălin-Constantin, Šamonil, Pavel, Vostarek, Ondřej, Yermokhin, Maxim, Zlatanov, Tzvetan and Mackey, Brendan (2024) Carbon carrying capacity in primary forests shows potential for mitigation achieving the European Green Deal 2030 target. Communications Earth & Environment, 5 (1). ISSN 2662-4435

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Abstract

Carbon accounting in the land sector requires a reference level from which to calculate past losses of carbon and potential for gains using a stock-based target. Carbon carrying capacity represented by the carbon stock in primary forests is an ecologically-based reference level that allows estimation of the mitigation potential derived from protecting and restoring forests to increase their carbon stocks. Here we measured and collated tree inventory data at primary forest sites including from research studies, literature and forest inventories (7982 sites, 288,262 trees, 27 countries) across boreal, temperate, and subtropical Global Ecological Zones within Europe. We calculated total biomass carbon stock per hectare (above- and below-ground, dead biomass) and found it was 1.6 times larger on average than modelled global maps for primary forests and 2.3 times for all forests. Large trees (diameter greater than 60 cm) accounted for 50% of biomass and are important carbon reservoirs. Carbon stock foregone by harvesting of 12–52% demonstrated the mitigation potential. Estimated carbon gain by protecting, restoring and ongoing growth of existing forests equated to 309 megatons carbon dioxide equivalents per year, additional to, and higher than, the current forest sink, and comparable to the Green Deal 2030 target for carbon dioxide removals.

Item Type:	Article
Depositing User:	RED Unit Admin
Date Deposited:	05 Jun 2024 10:10
Last Modified:	05 Jun 2024 10:10
URI:	https://bnu.repository.guildhe.ac.uk/id/eprint/19083

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