What's Happening?
A new report from the DiversiTree project suggests planting 'blocky' species mixes within Sitka spruce woodlands to enhance biodiversity without significantly impacting timber production. Researchers recommend species like oak, sycamore, Scots pine, and Norway spruce, although only sycamore can grow long-term with Sitka spruce. The study identifies 564 species that utilize Sitka spruce for feeding or living space, highlighting the need for increased tree species diversity to improve woodland resilience.
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Why It's Important?
Increasing tree species diversity in Sitka spruce woodlands could bolster biodiversity and ecosystem health, addressing challenges posed by pests and climate change. This approach may enhance forest resilience, supporting a wider range of species and ecological functions. By diversifying tree species, the forestry industry can mitigate risks associated with monoculture plantations, promoting sustainable practices and long-term environmental benefits.
What's Next?
Further research is needed to determine the optimal size and arrangement of 'blocky' species mixes within Sitka spruce woodlands. The forestry industry may consider revising planting constraints to accommodate greater species diversity. This initiative could inspire similar projects aimed at enhancing biodiversity in other types of woodlands, fostering a more sustainable approach to forestry management.
