Transcript Adaptability

Moving “Beyond The Label” May Lead To Wider
Applications Of Uneven-aged Management
(alternative silviculture)
Klaus Puettmann
Edmund Hayes Professor in Silviculture Alternatives
Opportunities for alternative silviculture
Lindenmayer et al. 2012 ConsLet
Gobal distribution of “primary
designated functions”
Biodiversity
Production
Soil and water protection
Social services
Multiple use
Unknown/Other
Per FAO assessment 2010
Global Scale of Alternatives
Natural
Disturbance-based
management
Nature
oriented
Continuous
cover
Ecological
forestry
Close-tonature
Systemic
Silviculture
Ecosystem
management
Retention
forestry
Reduced
Impact
logging
Variable
retention
World map by www.freeworldmaps.net
Five Principles of Alternative Silviculture
Partial
harvest
Mixed
species
Natural
regeneration
Smallscale
variability
Avoid
intensive
operations
Hurdles to Overcome
•
•
•
•
•
Ecology
Economics
Logistics
Education (Information)
Culture (History)
Partial Harvest - Retention
• Ecological
•
Scale - natural disturbances
• Economics
•
•
Penalty for large tree size
Interest rate
• Logistics
•
•
Labor (marking trees)
Machines
• Education
• Culture
•
“Imprinting” or “knowledge lock-in”
Small-scale Variability
• Ecology
•
•
Fire ladder
Diseases
• Economics
•
Wood quality/branch size
• Logistics
•
•
Machines
Inventory/planning
• Education
• Culture
•
Stand layout
Avoid Intensive Operations
• Ecology
•
•
Competitive understory
Tree quality and stability
• Economics
•
Yield/quality reduction
• Logistics
• Education
• Information about
natural development
• Culture
Natural Regeneration
•
Ecology
•
•
•
Economics
•
•
Variable success
Logistics
•
•
Species mixture
Assisted migration
Monitoring
Education
• Information about establishment
and growth, release potential
•
Culture
•
Reforestation laws
Mixed Species
• Ecology
•
Response to disturbances
• Economics
•
Wood value
• Logistics
•
Market access
• Education
•
Competitive relationships
• Culture
•
Reforestation laws
Moving “Beyond The Label”
• Flexibility to accommodate local conditions
– Relative importance of principles
• Focus on outcomes
– Not necessarily principles or structures
– Ecosystem services
• “Babysteps”
• Benefit of a conceptual, scientific framework
(Complex adaptive system?)
Thank you for your attentions !
Questions and Comments?
Acknowledgements: Drs. Baker, Australia; Bauhus, Germany;
Donoso, Chile; Droessler, Scandinavia, Girma, Ethiopia; Harvey, Canada;
Nocentini, Italy, Wilson, Great Britain; Yuanchang, China, and Yosihda,
Japan. Discussions with numerous colleagues and students.