Climate change adaptation: adapting to change - PowerPoint PPT Presentation

Loading...

PPT – Climate change adaptation: adapting to change PowerPoint presentation | free to download - id: 553766-NDc4N



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Climate change adaptation: adapting to change

Description:

Climate change adaptation: adapting to change Mark Broadmeadow Forestry Commission Why do we need to adapt? Climate matching - Brechfa The rate of change ESC ... – PowerPoint PPT presentation

Number of Views:239
Avg rating:3.0/5.0
Slides: 24
Provided by: MarkBroa8
Learn more at: http://www.futureforest.eu
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Climate change adaptation: adapting to change


1
Climate change adaptation adapting to change
  • Mark Broadmeadow
  • Forestry Commission

2
Why do we need to adapt?
Weve been around for millennia, so why have we
only got ten years to save the planet?
3
Climate matching - Brechfa

4
The rate of change
feet per day
5
ESC suitability change Sitka spruce
2050 Low
2080 High
2050 High
6
Changing distribution of ash
1961-90
2020s
2050s
2080s
ECI/BRANCH project www.branchproject.org.
7
ESC suitability for NVC woodland
1961-90
2050s High
2050s Low
8
Unforeseen and extreme events
9
Dont forget there are opportunities
10
What do we want to protect?
11
(No Transcript)
12
Adaptation - dont put all the eggs..
13
What are the options?
14
Make existing ecosystems more resilient
  • Manage existing woodlands better - promote
    regeneration and reduce other pressures
  • deer management
  • fire management plans
  • wind hazard management
  • Enlarge existing woodlands
  • Create habitat networks to encourage natural
    adaptation/evolutionary processes
  • Relax designations to reflect likely changes in
    community structure that will still form
    functional woodland ecosystems

15
Changing species range beech
16
Enhancing resilience of native species
  • Redistribute native species within the
    site/landscape/country - ie amend species choice
  • Diversify species composition
  • mixed species stands, including for commercial
    timber production
  • diversification within wood/forest/landscape
  • Use seed origins from more southerly regions

17
Utilising the available genetic resource
Grimsthorpe - England
Slovenia
Dunnottar - Scotland
  • Encourage regeneration and natural selection
  • Provenance matching
  • Oceanic climate
  • Frost risk gt2 degrees south
  • Portfolio approach

18
Non-native species
  • Productive plantations
  • commercial timber species for which we have
    (limited) silvicultural knowledge (Nothofagus
    Eucalyptus black walnut pinaster pine).
  • New native and amenity woodland
  • small component of native species dominated
    mixture
  • main component of 'new ecosystems
  • from continental Europe - where they are
    components of functional ecosystems alongside our
    native species
  • careful consideration required of impacts on
    native species and woodlands
  • hybridisation
  • pests and diseases
  • invasiveness

But.......evidence not sufficient and unlikely
to be necessary in Wales
19
Species choice in the urban environment
20
Alternative approaches to management LISS
  • Species diversity
  • Structural diversity
  • Regeneration capacity
  • regular regeneration provides insurance
  • less hostile environment
  • encourages natural selection
  • Windfirm?
  • If not, next cohort present Encourage
    regeneration and natural selection

21
Protecting the genetic resource
  • Create refugia for species under threat
  • Create refugia for identifiable genotypes/races
    under threat - conserve genetic diversity
  • Use arboreta/collections as global repository of
    genetic material

22
Barriers to effective adaptation
  • Uncertainty
  • The level and rate of change predicted
  • Pests and diseases
  • Extreme events
  • Some current concepts of nature conservation
  • An understanding of new assemblages
  • Competing policies
  • Complacency

23
Conclusions appropriate actions
  • There are options we can take now
  • The sector needs to act soon to ensure a resource
    for future generations
  • We should only implement no or low regret
    measures
  • Diversification insures against uncertainty
  • Some higher risk actions may be prudent
  • Above all, we should not panic........
  • .........but take the opportunities climate
    change presents
About PowerShow.com