Linking smallholder land use and fire activity: examining biomass burning in the Brazilian Lower Amazon

Linking smallholder land use and fire activity: examining biomass burning in the Brazilian Lower... Landscape forest flammability and regional biomass burning are critical environmental issues associated to fire use practices in the Brazilian Amazon. To better understand the gamut of these issues, all land use pathways that lead to fire use and culminate in different fire types must be investigated. An estimated 400,000 smallholders use fire in their land use practices, but most research has investigated connections between land use decisions and subsequent fire on large-scale cattle ranches only. This study presents research on smallholder fire use practices in the agricultural frontier south of Santarém, Pará. Vegetation vulnerable to smallholder fires is largely secondary succession, while only ∼8% is logged or mature forest cover. Fire efficiency in smallholder fire use practices is slightly higher than in previous studies used to estimate regional biomass burning, averaging 46.7–57.5%. In slashed succession areas, average efficiency also increases as biomass fuel load increases, but range increases as well, suggesting that smallholders may have more control over efficiency outcome in younger slashed succession areas than older slashed succession, logged areas or mature forests. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Forest Ecology and Management Elsevier

Linking smallholder land use and fire activity: examining biomass burning in the Brazilian Lower Amazon

Forest Ecology and Management, Volume 128 (1) – Mar 15, 2000

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Publisher
Elsevier
Copyright
Copyright © 2000 Elsevier Science B.V.
ISSN
0378-1127
eISSN
1872-7042
D.O.I.
10.1016/S0378-1127(99)00283-2
Publisher site
See Article on Publisher Site

Abstract

Landscape forest flammability and regional biomass burning are critical environmental issues associated to fire use practices in the Brazilian Amazon. To better understand the gamut of these issues, all land use pathways that lead to fire use and culminate in different fire types must be investigated. An estimated 400,000 smallholders use fire in their land use practices, but most research has investigated connections between land use decisions and subsequent fire on large-scale cattle ranches only. This study presents research on smallholder fire use practices in the agricultural frontier south of Santarém, Pará. Vegetation vulnerable to smallholder fires is largely secondary succession, while only ∼8% is logged or mature forest cover. Fire efficiency in smallholder fire use practices is slightly higher than in previous studies used to estimate regional biomass burning, averaging 46.7–57.5%. In slashed succession areas, average efficiency also increases as biomass fuel load increases, but range increases as well, suggesting that smallholders may have more control over efficiency outcome in younger slashed succession areas than older slashed succession, logged areas or mature forests.

Journal

Forest Ecology and ManagementElsevier

Published: Mar 15, 2000

References

  • A tropical rainforest clearing experiment by biomass burning in the Manaus Region
    Carvalho, J.A; Santos, J.M; Santos, J.C; Leitão, M.M; Higuchi, N
  • Fire as a recurrent event in tropical forests of the eastern Amazon: effects on forest structure, biomass, and species composition
    Cochrane, M; Schulze, M
  • Fire in Amazonian selectively logged rain forest and the potential for fire reduction
    Holdsworth, A; Uhl, C
  • Fire in the Brazilian Amazon: 1. Biomass, nutrient pools, and losses in slashed primary forests
    Kauffman, J.B; Cummings, D; Ward, D; Babbitt, R

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