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Criterion 3

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Regional or national forest inventory results ... National forest inventories are only available every 5 to 10 years ... Areas from national forest inventory ... – PowerPoint PPT presentation

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Title: Criterion 3


1
Criterion 3
  • Maintenance and encouragement of productive
    functions of eucalyptus
  • J-N Marien, AFOCEL
  • Pedro Lencart, CELBI
  • Clara Araújo, CELBI
  • Juan Picos, AFG
  • Nuno Borralho, RAIZ

Paco Soria (PECADOR)
Évora, Jan 22, 1999
2
Proposed Indicators
  • 31. Wood production per hectare
  • 32. Wood production in a region
  • 33. Growth-harvesting balance
  • 34. Appropriate management plans in place
  • 35. Use of genetically improved stock
  • 36. Importance of non-wood products

3
31. Wood production per hectare
  • Operational indicator
  • Wood MAI (u.b.) at rotation age
  • PICL
  • Forest inventory plot or total stand harvested
    volume
  • ML
  • Stand level
  • Representativity
  • FMU

4
31. Wood production per hectare
  • Methodology
  • Growth models using forest inventory data
  • Wood harvested from company land
  • Costs
  • Low
  • Pros/Cons
  • Useful for managers, simple
  • High year to year variation (e.g. climate)

5
32. Wood production in a region
  • Operational indicator
  • Total standing volume
  • PICL
  • Forest inventory plots
  • ML
  • Region
  • Representativity
  • Region
  • Methodology
  • Forest inventory
  • Costs
  • Low

6
33. Growth-harvesting balance
  • Operational indicators
  • Total annual volume increment (ub)
  • Total volume purchased by industries
  • PICL
  • Regional or national inventory plot
  • Industries
  • ML
  • Regional or national
  • Representativity
  • Regional or national

7
33. Growth-harvesting balance
  • Methodology
  • Regional or national forest inventory results
  • Industry statistics
  • Costs
  • Low
  • Pros/Cons
  • Simple
  • National forest inventories are only available
    every 5 to 10 years
  • Often unreliable source of purchases

8
34. Appropriate management plans in place
  • Operational Indicators
  • Proportion of eucalypt stands under management
    plans
  • PICL
  • FMU
  • Representativity
  • Region
  • Costs
  • Low

9
34. Appropriate management plans in place
  • Methodology
  • Areas from national forest inventory
  • Areas under projects approved and supervised by
    Government Forest Departments
  • Pros/Cons
  • Compliance to plans is assumed
  • Difficult to define what is appropriate

10
35. Use of genetically improved stock
  • Operational indicator
  • Ratio of selected plants produced and total
    plants produced, as reported by nurseries
  • PICL
  • Nursery statistics
  • Representativity
  • FMU or Region
  • Costs
  • Low

11
35. Use of genetically improved stock
  • Methodology
  • Nursery statistics
  • Pros/Cons
  • Most plants coming from few large nurseries
  • In some years number of plants produces very
    different from areas planted

12
36. Importance of non wood products
  • Operational indicators
  • Percentage surface with non wood use
  • PICL
  • Property or estate
  • Representativity
  • Region
  • Costs
  • Depend on level of accuracy required

13
36. Importance of non wood products
  • Methodology
  • Specific survey to forest owners by region
  • Some statistics available in companies
  • Pros/Cons
  • Difficult to estimate areas for most small scale
    forest owners. Only reliable with companies and
    organized forest associations
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