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How to spend our time?

How to spend our time?. Reasons for the assessment of biomass Material and methods Results of the questionnaire Results of the literature review Summary of results Proposal for the discussion on common protocols. Assessment of biomass production in forestry.

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How to spend our time?

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  1. Department: Forest Genetics/Tree Breeding How to spend our time? • Reasons for the assessment of biomass • Material and methods • Results of the questionnaire • Results of the literature review • Summary of results • Proposal for the discussion on common protocols

  2. Department: Forest Genetics/Tree Breeding Assessment of biomass production in forestry • Production of timber traditionally assessed by calculation or estimation of volume in m³ • Volume mainly related to timber usable for paper and wood industry • With exception of stem, other parts of trees normally not considered • Relatively sophisticated methods established

  3. Department: Forest Genetics/Tree Breeding Assessment of biomass production in short rotations • Assessment or estimation of total biomass produced at the same or different sites mainly in tonnes of absolutely dry weight • Compared to agriculture, biomass production can not easily be assessed by complete harvest of the growing stock since production time is several years • Assessment by harvest of parts of the plantation or by spot samples • Development of suitable, non-destructive methods

  4. Department: Forest Genetics/Tree Breeding Assessment of biomass production in science and breeding • Assessment of yield to compare productivity of different sites, management methods a. o. using standardized material • Assessment of response of species, provenances, progenies, clones to various environmental factors • Assessment of data for development of non-destructive estimation methods • Tool for early testing

  5. Department: Forest Genetics/Tree Breeding Material and methods • 1st questionnaire Arezzo, Italy • Survey on activities • 2nd questionnaire by email • Confirmation of information given in Arezzo • Addition of species • Request for literature esp. with methodological aspects • Literature review • Literature and protocols sent by participants • Literature sources already known

  6. Department: Forest Genetics/Tree Breeding Results of questionnaires • 1st questionnaire Arezzo, Italy • 27 of 28 participants could be asked • 65 % (N=17/27): No experience with assessment of biomass • 35 % (N=10/27): Experience with assessment of biomass • 2nd questionnaire by email • 23 of 28 participants (82 %) answered until 03.09.2009 • 52 % (N=12/23): Experience with assessment of biomass • 67 % (N= 8/12): Literature and protocols sent

  7. Department: Forest Genetics/Tree Breeding Results of questionnaires • 7 species of interest mentioned • Poplar: 58 % (N= 7/12) • Willow: 25 % (N= 3/12) • Beech, Chest nut, Robinia, Norway spruce, Scots pine: 8 % each (N= 1/12)

  8. Department: Forest Genetics/Tree Breeding Results of literature review: Species • 22 publications and protocols included • 8 species of interest mentioned • Poplar: 32 % (N= 7/22) • Willow: 18 % (N= 4/22) • Beech: 18 % (N= 4/22) • Scots pine: 9 % (N= 2 /22) • Chest nut, Robinia, Norway spruce, Silver fir: 5 % each (N= 1/22) • other species not specified: 5 % each (N= 1/22)

  9. Department: Forest Genetics/Tree Breeding Results of literature review: Material and sample size

  10. Department: Forest Genetics/Tree Breeding Results of literature review: Material and sample size

  11. Department: Forest Genetics/Tree Breeding Results of literature review: Material and sample size

  12. Department: Forest Genetics/Tree Breeding Results of literature review: Handling and drying

  13. Department: Forest Genetics/Tree Breeding Results of literature review: Handling and drying

  14. Department: Forest Genetics/Tree Breeding Results of literature review: Handling and drying

  15. Department: Forest Genetics/Tree Breeding Results of literature review: Handling and drying

  16. Department: Forest Genetics/Tree Breeding Results of literature review:Summary • Genetic background: Clones, full-sibs, open polls • Material used: Cuttings, seedlings, trees • Age of material: • 54d to 35a; 67 % 1 to 10a; 19 % > 10a • Handling: All parts of plants • Drying temperatures: 45°C to 105°C • Drying periods: 16h to one week (7d) or „until constant weight“

  17. Department: Forest Genetics/Tree Breeding Proposal for common protocol • Sample size • Genetic background (clones < full-sibs < open polls) • Age of material (under 1a > 1 to 10a > over 10a) • Sampling procedure • Covering range of e. g. d1,3 or basal area • Randomly e. g. each third plant • Should be noted anyway • Handling procedure • Fresh weight should also be assessed separately for every compartment investigated

  18. Department: Forest Genetics/Tree Breeding Proposal for common protocol • Drying temperatures depending on further use: • If chemical analyses are required: e. g. 45°C (leaves, needles, bark) (look also to the analyses protocol) • If parts of plants should not be pulverized e. g. fine roots: 60 to 75°C • If there is no further use: 104°C +- 1K (ISO – guidelines) • Drying periods: In every case „until constant weight“

  19. Department: Forest Genetics/Tree Breeding Proposal for common protocol • Documentation step by step • Genetic background • Kind of material • Age of material • Sampling size and procedure • Handling of samples • Drying temperature and reasoning • Drying period

  20. Department: Forest Genetics/Tree Breeding Now it is on you!!Screaming, dancing, shouting???Asking, discussing, developing!!!Thank you very much

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