Forestry and Agriculture in Brazilian Rainforests. Aaron Anderson Andrew Johnson Tyler McFadden Matt Saiget Karl Smith. Overview. Drivers of land conversion Ecological consequences of forest conversion Current Sustainable methods and Implementation Agroforestry Practices
-Land conversion to agriculture releases carbon (Schroth et. al)
-Secondary regrowth on site “re-assimilates part of the carbon released through cutting and burning” (Schroth et. al)
-Carbon accumulation occurs in timber biomass and soil in secondary regrowth and has great potential when combined with agroforestry (Schroth et. al)
-Net productivity related to spatial arrangement
-bearing capacity, nutrient availability -> adjacency, shade, competition or cooperation
Current Sustainable Practices include
Adoption and implementation of sustainable agricultural practices is very slow to to any reason which include:
FAO. 2011. The State of Forests in the Amazon Basin, Congo Basin and Southeast Asia.
Kauffman, J.B., D.L. Cummings,D.E. Ward, and R. Babbitt• Fire in the Brazilian Amazon: Biomass, nutrient pools, and losses in slashed primary forests, Oecologia,104, 397-408, 1995.
Laurance, W.F., Lovejoy, T.E., Vasconcelos, H., Bruna, E., Didham, R., Stouffer, P.,Gascon, C., Bierregaard, R., Laurance, S.G., Sampaio, E., 2002. Ecosystem decay of Amazonian forest fragments: a 22-year investigation. Conserv. Biol. 16, 605–618.
Uhl C and Kauffman JB. 1990. Deforestation, fire susceptibility, and potential tree responses to fire in the eastern Amazon. Ecology 71(2): 437-449.
Schroth G., D’Angelo S. A., Teixeira W. G., et. al. Conversion of secondary forest into agroforestry and monoculture plantations in Amazonia: consequences for biomass, litter and soil carbon stocks after 7 years. Forest Ecology and Management [serial online]. 2002; 163(1-3: 131-150. Available: http://www.sciencedirect.com/science/article/pii/S0378112701005370. Accessed 2014 May 27.