Frits Mohren Powerpoint

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Professor Frits Mohren gave a presentation at the Make a Forest Kick Off

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Frits Mohren Powerpoint

  1. 1. Timber, Trees, Forests and Forestry Frits Mohren Forest Ecology and Forest Management Groupmaandag 4 april 2011
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  4. 4. ► cover some 30 % of the land area (3,5 Bha)maandag 4 april 2011
  5. 5. ► cover some 30 % of the land area (3,5 Bha) ► contain 80 % of terrestrial biodiversitymaandag 4 april 2011
  6. 6. ► cover some 30 % of the land area (3,5 Bha) ► contain 80 % of terrestrial biodiversity ► 300 million people live in the forestmaandag 4 april 2011
  7. 7. ► cover some 30 % of the land area (3,5 Bha) ► contain 80 % of terrestrial biodiversity ► 300 million people live in the forest ► 1,6 billion people directly depend on themmaandag 4 april 2011
  8. 8. ► cover some 30 % of the land area (3,5 Bha) ► contain 80 % of terrestrial biodiversity ► 300 million people live in the forest ► 1,6 billion people directly depend on them ► Contain 1000 Gt carbon (eq to atmosphere)maandag 4 april 2011
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  13. 13. highest tree: 115,6 mmaandag 4 april 2011
  14. 14. highest tree: 115,6 mmaandag 4 april 2011
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  19. 19. Ecologie van Bossen FEM10306maandag 4 april 2011
  20. 20. Ecologie van Bossen FEM10306 ► 1m3 timber per person per year; (from natural forest: sustainable harvest of 1m3 per ha per yr)maandag 4 april 2011
  21. 21. Ecologie van Bossen FEM10306 ► 1m3 timber per person per year; (from natural forest: sustainable harvest of 1m3 per ha per yr)maandag 4 april 2011
  22. 22. Ecologie van Bossen FEM10306maandag 4 april 2011
  23. 23. Ecologie van Bossen FEM10306 ► Sustainable use hectare per year; forests: 1m 3 per from naturalmaandag 4 april 2011
  24. 24. Ecologie van Bossen FEM10306 ► Sustainable use hectare per year; forests: 1m 3 per from natural ► Sustainable use from plantations: 10 m3 per hectare per yearmaandag 4 april 2011
  25. 25. Ecologie van Bossen FEM10306 ► Sustainable use hectare per year; forests: 1m 3 per from natural ► Sustainable use from plantations: 10 m3 per hectare per year ► Demand: 7 billion forest only m3, supply from natural sustainable max 3,5 billion m3maandag 4 april 2011
  26. 26. Forest Management n Exploitation and timber mining ( - 1900): n Deforestation along sea trade routes n Early silviculture n Early forestry (1850 – 1950’s): n Plantation silviculture n Exploitation linked to timber trade n Europe: sustainable forest management n Global exploitative phase (1950’s – 1990’s): n Strong increase in deforestation n Globalisation and environmental awareness, close-to-nature forestry n Sustainable use, conservation and environmental services (1990-) n Community forestry, livelihoods, forests as life support systemsmaandag 4 april 2011
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  30. 30. +/- 1935: after WW-II: tractors and skiddermaandag 4 april 2011
  31. 31. Silvicultural systems: shifting cultivation, Guyanamaandag 4 april 2011
  32. 32. Shifting cultivation (boreal zone) Russia Polenov, Vasili Dmitrievich: The Burnt Forest, 1881 (Tretyakov Galery, Moscow)maandag 4 april 2011
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  35. 35. European forests  150 mil. ha,fragmented divers and very  Mostly plantations, slow increase in area  High demands from society  Cradle of sustainable forestry  Diverseforests quality and highmaandag 4 april 2011
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