1 / 23

Gary Kerr Forest Research, Alice Holt Lodge, Farnham, Surrey, United Kingdom.

The role of uneven-aged silviculture in diversifying forests in Britain: to adapt to climate change and increase resilience to pests and diseases. Gary Kerr Forest Research, Alice Holt Lodge, Farnham, Surrey, United Kingdom. Structure of presentation. Introduction to forests in Britain

bat
Download Presentation

Gary Kerr Forest Research, Alice Holt Lodge, Farnham, Surrey, United Kingdom.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The role of uneven-aged silviculture in diversifying forests in Britain:to adapt to climate change and increase resilience to pests and diseases Gary Kerr Forest Research, Alice Holt Lodge, Farnham, Surrey, United Kingdom.

  2. Structure of presentation • Introduction to forests in Britain • Future challenges • Increasing resilience • Conclusions/Future concepts

  3. Distribution of forests in GB

  4. Typical upland plantations of Picea sitchensis 4 31/08/2014

  5. Pests and diseases Chalara on Ash!!!

  6. Forest of Dean Today 1961-90 Coleford

  7. Forest of Dean 2080 2080s High

  8. The big challenge! How can we adapt forests to increase resilience to biotic threats and climate change, whilst maintaining productivity?

  9. What is resilience? Resilience: the capacity of a plant community to maintain or regain normal function and development following disturbance. Helms, J. 1998 The dictionary of forestry. CABI International, Oxford.

  10. Ways to increase resilience Three main options: • Species choice and deployment • Silvicultural systems / forest structure (thinning) • Genetics

  11. Our forests today • 5 conifer species account for 88% of the total • 5 broadleaved species account for over 72% of the total • 10 tree species account for 80% of our woodland!!!! Broadleaved species today

  12. 2. Silvicultural systems

  13. Sitka spruce at Clocaenog

  14. 3. Genetics

  15. Provenance of Abies alba L. Data were analyzed using GLMM and results showed that site (P=0.026) and provenance (p<0.001) were significant but site x provenance was not significant (p=0.578)

  16. Summary – Resilient Forests • A key ‘future concept’ in forest management is resilience • What does it mean? • How can it be assessed/measured? • Is the science in place to advise policy? • Is understanding advanced enough to develop forestry practice?

  17. Spruce Serbian spruce: Picea ormorika Oriental spruce: Picea orientalis

  18. Redwoods Wellingtonia: Sequoiadendron giganteum Coast redwood: Sequoia sempervirens

  19. Crytomeria: Japanese cedar Japanese cedar: Cryptomeria japonica Japanese cedar: Cryptomeria japonica

  20. Cedars Atlas cedar: Cerdus atlantica Cedar of lebanon: Cedrus libani Himalayan cedar: Cedrus diodara

  21. Leyland cyprus: Cupressus x leylandii Western red Cedar: Thuja plicata

  22. European Fir’s European silver fir: Abies alba Greek fir: Abies cephalonica

  23. Old favourites! Western hemlock: Tsuga heterophylla Douglas-fir: Pseudotsuga menziesii

More Related