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Planting hedgerows: Biomass carbon sequestration and contribution towards net-zero targets by Sofia Biffi; Pippa J. Chapman; Richard P. Grayson; Guy Ziv is a Environmental Science article available to read on EtoBox.

What is Planting hedgerows: Biomass carbon sequestration and contribution towards net-zero targets about?

Agroforestry practices, such as hedgerow planting, are widely encouraged for climate change mitigation and there is an urgent need to assess their contribution to national ‘net-zero’ targets. This study examined the impact that planting hedgerows at different rates could make to UK net-zero goals over the next 40 years, with a focus on 2050. We analysed the carbon (C) content of native hedgerow species and determined hedge aboveground biomass (AGB) C stock via destructive sampling of hedges of known ages. AGB C stocks ranged from 8.34 Mg C ha−1 in the youngest hedges, to 40.42 Mg C ha−1 in old ones. Knowing the age of the hedgerows, we calculated their annual average AGB C sequestration rate, which was highest in young hedges (2.09 Mg C ha−1 yr−1), and lowest in 39 year old mature, regularly trimmed hedgerows (0.86 Mg C ha−1 yr−1). We present a time series of the annual AGB C sequestration rate change between hedge age categories, which increases from 2.09 Mg C ha−1 yr−1 in the first 6 years after planting, to 2.26 Mg C ha−1 yr−1 in the next 6 years, and then decreases to 0.43 Mg C ha−1 yr−1 between years 13 and 40. Our results indicate that, if encouraged widely, hedgerow planting

Who reads Planting hedgerows: Biomass carbon sequestration and contribution towards net-zero targets?

Author

Sofia Biffi; Pippa J. Chapman; Richard P. Grayson; Guy Ziv

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)