The carbon sequestration potential of Scottish native woodland

The carbon sequestration potential of Scottish native woodland
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苏格兰本土林地的碳固存潜力

DOI:
10.1088/2515-7620/abf467
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发表时间:
2021
影响因子:
2.9
通讯作者:
Fletcher T
Fletcher T
中科院分区:
环境科学与生态学4区
文献类型:
--
作者:
Fletcher T

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林地的创造可以隔绝碳,有助于减缓气候变化。以前对英国新林地碳封存的大多数评估都集中在植树造林上,对自然再生的潜在贡献规模知之甚少。我们使用原生林地潜力模型首次估算了苏格兰通过自然更新进行大规模原生林地扩张所带来的碳固存。我们估计,原始林地可以扩大覆盖额外的390万公顷苏格兰高地,平均每年消除696万吨二氧化碳。这相当于英国气候变化委员会建议的英国林地碳清除目标的35%-45%。将林地扩大到这一潜力的10%,将使现有的原生林地增加一倍,并可以带来许多好处,包括相当于这一目标约4%的碳去除。今后几十年对于减缓气候变化至关重要,因此现在需要进一步努力改进这些估计并更好地限制这一潜在的巨大贡献。
Woodland creation sequesters carbon and contributes to climate change mitigation. Most previous assessments of the carbon sequestration of new UK woodlands have focused on tree planting, little is known about the scale of the potential contribution from natural regeneration. We used a Potential for Native Woodland Model to make the first estimate of carbon sequestration by large-scale native woodland expansion through natural regeneration in Scotland. We estimate native woodland could expand to cover an additional 3.9 million hectares of the Scottish uplands removing an average of 6.96 million tons of CO 2 per year. This represents 35%–45% of the carbon removal target for UK woodlands that has been suggested by the UK Committee on Climate Change. Expanding woodlands to just 10% of this potential would double existing native woodland and could provide a multitude of benefits, including carbon removal equivalent to approximately 4% of this target. The next few decades are critical in terms of climate change mitigation, therefore further work is now required to improve these estimates and better constrain this potentially large contribution.
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