Research by University College London and the Royal Botanic Gardens, Kew, reveals that giant sequoias and coastal redwoods, introduced during the Victorian era, are thriving in the UK and playing a vital role in carbon sequestration.
Researchers from University College London and the Royal Botanic Gardens, Kew, have discovered that giant sequoias and coastal redwoods, introduced to the UK from North America during the Victorian era, are not only thriving in British soil but also playing a significant role in carbon sequestration. The study, published in the Royal Society Open Science journal, estimated that around half a million of these trees are now growing across the UK, with the tallest reaching about 180ft.
Utilizing advanced 3D terrestrial laser scanning technology, the researchers mapped nearly 5,000 known giant sequoias in the UK, analyzing their growth rates and carbon capture capabilities. Findings suggest that these trees are well-suited to the UK climate, with growth rates comparable to their native counterparts in the US. The study underscores the potential of these majestic trees to contribute significantly to carbon storage in British woodlands, highlighting their value in future tree planting and management strategies aimed at mitigating climate change.
Despite their successful adaptation and growth, the research team, led by Ross Holland, emphasizes that the planting of giant sequoias and redwoods should complement, not replace, efforts to reduce carbon emissions. With their origins tracing back to about 160 years ago, these trees have become notable fixtures in the UK landscape, often found in grand estates and public parks.
The flourishing of giant redwoods in the UK is juxtaposed with the challenges facing their native forests in California, including threats from climate change. The UK’s relatively damp climate has proven favorable for these trees, which are absorbing significant amounts of carbon dioxide. While they are not reproducing in the UK due to specific conditions needed for seed germination, the research suggests a bright future for these giants in terms of growth and environmental contribution.
