Seminar 13 Mar 13 - Session 4 - Who drives deforestation in Kalimantan by DGaveau

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This presentation focuses on sharing analysis undertaken on the growth of area cleared for, or planted with industrial plantations from 1975 to 2010 across Indonesian Borneo determined by visual inspection of >182 Landsat images. It also discusses the trajectory of land cover changes before industrial plantations establishment to identify whether plantations have been established on: 1) intact forests, 2) logged forests; 3) very degraded forests; or 4) smallholder agricultural areas. Finally, the proportion of 2000-2010 deforestation (loss of old-growth natural forest cover) caused by industrial plantations and by small farmers is analyzed. The implications of these findings for the large versus small-scale debate will be discussed.

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Seminar 13 Mar 13 - Session 4 - Who drives deforestation in Kalimantan by DGaveau

  1. 1. Who drives deforestation in Kalimantan? The small or the bigDr. David L.A. Gaveau
  2. 2. Preliminary assessment of the contribution of large industries todeforestation- Dataset used for deforestation was generated by Broich and Hansen.It is an annual dataset tree cover loss between 2000-2010- We transformed the tree loss into loss of natural forest by removing all tree lossPixels that fell outside of the forest area in year 2000 using a 2000 forest coverMap from MoF- We then only measured the deforestation under forest areas that weredeveloped for industrial plantations (IOPP, ITP and Mining) between 2000-2010.- Because the deforestation dataset is annual, it picks up tree fall from logging and logging roads. But, this not deforestation. This is degradation. We excludedThose degradation pixels if they fell within 700m of logging roads created between2000-2010
  3. 3. 6.5 million ha planted in Indutrial Oil Palm1 million ha planted in industrial timber plantations180,000 ha of mining open mining (coal)
  4. 4. 1.42 million ha of naturalforestLost between2000-2010 ; 4.2% (0.42 % yr-1)In 1990-2000 about8 million h lost(5 times higher)
  5. 5. 200000 El ninio 06-07 180000 160000 El ninio 02-03Area of deforestation (x1000ha) 140000 120000 Industry driven 100000 smallholder 80000 and fires 60000 40000 20000 0
  6. 6. 30mean patch size (ha) 25 20 Industry driven 15 smallholder 10 and fires 5 0 2000-20012001-20022002-20032003-20042004-20052005-20062006-20072007-20082008-20092009-2010
  7. 7. 1975 forest non forest map
  8. 8. 2010 landcover map
  9. 9. Total logged area since the 1970s
  10. 10. 6.5 million ha planted in Indutrial Oil Palm1 million ha planted in industrial timber plantations
  11. 11. 1982-83 forest fires
  12. 12. 1997-98 forest fires
  13. 13. Thank-you

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