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Deforestation and conservation in major watersheds of the Brazilian Amazon

Published online by Cambridge University Press:  03 February 2010

RALPH TRANCOSO ,
ARNALDO CARNEIRO FILHO ,
JAVIER TOMASELLA ,
JULIANA SCHIETTI ,
BRUCE RIDER FORSBERG  and
ROBERT PRITCHARD MILLER
RALPH TRANCOSO*
Affiliation:
National Institute for Research in the Amazon (INPA), Laboratory of Spatial Analysis (SIGLAB), Large Scale Biosphere–Atmosphere Experiment in Amazon (LBA), INPA Campus II, Avenida André Araújo 2936, Aleixo, Manaus, Amazonas 69083-000, Brazil
ARNALDO CARNEIRO FILHO
Affiliation:
Social Environmental Institute (ISA), SCLN, 210, Bloco C, sala 112, Brasília – DF 70862-530, Brazil
JAVIER TOMASELLA
Affiliation:
National Institute for Space Research (INPE), Centre for Terrestrial System Sciences, Rodovia Presidente Dutra km 39 12630-000 Cachoeira Paulista/SP, Brazil, Large Scale Biosphere–Atmosphere Experiment in Amazon (LBA), INPA Campus II, Avenida André Araújo 2936, Aleixo, Manaus, Amazonas 69083-000, Brazil
JULIANA SCHIETTI
Affiliation:
National Institute for Research in the Amazon (INPA), Laboratory of Spatial Analysis (SIGLAB), Large Scale Biosphere–Atmosphere Experiment in Amazon (LBA), INPA Campus II, Avenida André Araújo 2936, Aleixo, Manaus, Amazonas 69083-000, Brazil
BRUCE RIDER FORSBERG
Affiliation:
National Institute for Research in the Amazon (INPA), Coordination for Research in Ecology (CPEC), INPA Campus III, Avenida André Araújo 2936, Aleixo, Manaus, Amazonas 69083-000, Brazil
ROBERT PRITCHARD MILLER
Affiliation:
National Indian Foundation (FUNAI), SEPS Quadra 702/902, Ed. Lex, Brasília–DF 70390-025, Brazil
*
*Correspondence: Mr Ralph Trancoso, National Indian Foundation (FUNAI), Coordination for Protection of Indigenous Lands (CPTI) Territorial Monitoring (CGMT) SEPS Quadra 702/902, Ed. Lex, Brasília–DF 70390-025, Brazil, Tel: +55 61 3313 3694 Fax: +55 61 3313 3694 e-mail: ralphtrancoso@gmail.com
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Summary

Conserving natural vegetation cover is of critical importance for maintaining the ecological integrity and hydrological properties of large river basins (more than 100 000 km2). Recent estimates indicate that more than 700 000 km2 of Brazilian Amazon have already been deforested, and to reduce further losses and preserve the important natural and cultural resources in this region, large conservation areas have been created by the Brazilian government. The present study analysed land cover and land use change in the major watersheds of the Brazilian Amazon, in order to evaluate the current balance between deforestation and conservation of natural areas in the region. The results show that watersheds draining the southern part of the basin have suffered the highest deforestation rates, with the largest losses (8.3–20% of total basin area) occurring in the Madeira, Tapajós, Xingu, Araguaia and Tocantins river basins. Most large watersheds already have significant deforestation in their headwaters, which can affect hydrological functions and ecological sustainability. The greatest allocation of land for conservation was encountered in the Trombetas, Xingu and Negro watersheds, where conservation areas occupied 92.5, 56.9 and 50.6% of the total basin, respectively. While extensive areas of the Amazon biome have been deforested, on the scale of large watersheds there is a positive balance between conservation areas and deforestation, and on average the area delimited by conservation areas is more than three times larger than the deforested areas. An analysis by subwatersheds, however, indicates that certain regions have achieved more critical levels of deforestation, in some situations affecting more than 80% of the subwatersheds.

Keywords

AmazonBrazildeforestationdigital elevation modelhydrological impactsindigenous landslarge watershedsprotected areas
Type
EC Perspectives
Information
Environmental Conservation , Volume 36 , Issue 4 , December 2009 , pp. 277 - 288
Copyright
Copyright © Foundation for Environmental Conservation 2010

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References

Adeney, J.M., Christensen, N.L. Jr & Pimm, S.L. (2009) Reserves protect against deforestation fires in the Amazon. PLoS One 4: e5014. doi:10.1371/journal.pone.0005014CrossRefGoogle ScholarPubMed
Andréassian, V. (2004) Waters and forests: from historical controversy to scientific debate. Journal of Hydrology 291: 1–27.CrossRefGoogle Scholar
Bosch, J.M. & Hewlett, J.D. (1982) A review of catchments experiments to determine the effect of vegetation changes on water yield and evapotranspiration. Journal of Hydrology 55: 3–23.CrossRefGoogle Scholar
Brown, A.E., Zhang, L., Mcmahon, T.A., Western, A.W. & Vertessy, R.A. (2005) A review of paired catchments studies for determining changes in water yield resulting from alterations in vegetation. Journal of Hydrology 310: 28–61.CrossRefGoogle Scholar
Bruijnzeel, L. A. (2004) Hydrological functions of tropical forests: not seeing the soil for the trees? Agriculture, Ecosystems and Environment 104: 185–228.CrossRefGoogle Scholar
Collischonn, W., Tucci, C.E.M. & Clarke, R.T. (2001) Further evidence of changes in the hydrological regime of the river Paraguay: part of wider phenomenon of climate change? Journal of Hydrology 245: 218–238.CrossRefGoogle Scholar
Costa, M.H., Botta, A.E., Cardille, J.A. (2003) Effects of large-scale changes in land cover on the discharge of the Tocantins River, Southeastern Amazonia. Journal of Hydrology 283: 206–217.CrossRefGoogle Scholar
Eva, H.D., de Miranda, E.E., di Bella, C.M., Gond, V., Huber, O., Sgrenzaroli, M., Jones, S. & Coutinho, A. (2004) A land cover map of South America. Global Change Biology 10: 732–745.CrossRefGoogle Scholar
Fearnside, P.M. (1995) Hydroelectric dams in the Brazilian Amazon as sources of ‘greenhouse’ gases. Environmental Conservation 22: 7–19.CrossRefGoogle Scholar
Fearnside, P.M. (2002) Greenhouse gas emissions from a hydroelectric reservoir (Brazils Tucuruí Dam) and the energy policy implications. Water, Air and Soil Pollution 133: 69–96.CrossRefGoogle Scholar
Fearnside, P.M. (2007) Brazil's Cuiaba-Santarem (BR-163) Highway: the environmental cost of paving a soybean corridor through the Amazon. Environmental Management 39: 601–614.CrossRefGoogle ScholarPubMed
Finer, M., Jenkins, C.N., Pimm, S.L., Keane, B. & Ross, C. (2008) Oil and gas projects in the western Amazon: threats to wilderness, biodiversity, and indigenous peoples. PLoS One 3: e2932. doi:10.1371/journal.pone.0002932CrossRefGoogle ScholarPubMed
Franklyn, J. (1993) Preserving biodiversity: species, ecosystems or landscapes? Ecological Applications 3: 202–205.CrossRefGoogle Scholar
Gascon, C., Williamson, G.B. & da Fonseca, G.A.B. (2000) Receding edges and vanishing reserves. Science 288: 1356–1358.CrossRefGoogle ScholarPubMed
Gentry, A.H. & Lopes-Parodi, J. (1980) Deforestation and increased flooding of the Upper Amazon. Science 210: 1354–1356.CrossRefGoogle ScholarPubMed
Gentry, A.H. & Lopes-Parodi, J. (1982) Deforestation and increased flooding of the Upper Amazon. Science 215: 427.CrossRefGoogle ScholarPubMed
INPE (2008) Monitoramento da Floresta Amazônica Brasileira por Satélite – Projeto Prodes [www document]. URL http://www.dpi.inpe.br/prodesdigital.pdf (in Portuguese).Google Scholar
Jenson, S.K. & Domingue, J.O. (1988) Extracting topographic structure from digital elevation data for geographic information system analysis. Photogrammetric Engineering and Remote Sensing 54: 1593–1600.Google Scholar
Killeen, T.J., Calderon, V., Soria, L., Quezada, B., Steininger, M.K., Harper, G., Solórzano, L.A. & Tucker, C.J. (2007) Thirty years of land-cover change in Bolívia. Ambio 36: 600–606.CrossRefGoogle ScholarPubMed
Laurance, W.F. (1998) A crisis in the making: responses of Amazonian forests to land use and climate change. Trends in Ecology and Evolution 13: 411–415.CrossRefGoogle ScholarPubMed
Laurance, W.F., Albernaz, A.K.M. & Costa, C.D. (2001) Is deforestation accelerating in the Brazilian Amazon? Environmental Conservation 28: 305–311.CrossRefGoogle Scholar
Machado, R.B., Ramos Neto, M.B., Pereira, P.G.P., Caldas, E.F., Gonçalves, D.A., Santos, N.S., Tabor, K. & Steininger, L.E.M. (2004) Estimativas de perda da área do Cerrado brasileiro. Unpublished Technical Report (in Portuguese), Conservação Internacional, Brasília, DF: 26 pp.Google Scholar
Magnusson, W.E. (2001) Catchments as basic units of management in conservation biology courses. Conservation Biology 15: 1464–1465.CrossRefGoogle Scholar
Magnusson, W.E. (2002) Priorities for priorities: where to locate the first FLONAs? Conservation Ecology 6: r7.CrossRefGoogle Scholar
Mungai, D.N., Ong, C.K., Kiteme, B., Elkaduwa, W. & Sakthivadivel, R. (2004) Lessons from two long-term hydrological studies in Kenya and Sri Lanka. Agriculture, Ecosystems and Environment 104: 135–143.CrossRefGoogle Scholar
Nepstad, D.C., Carvalho, G., Barros, A.C., Alencar, A, Capobianco, J.P., Bishop, J., Moutinho, P., Lefebvre, P., Lopes Silva, U. & Prins, E. (2001) Road paving, fire regime feedbacks, and the future of Amazon forests. Forest Ecology and Management 154: 395–407.CrossRefGoogle Scholar
Nepstad, D., Schwartzman, D., Banberger, B., Santilli, M., Ray, D., Schlesinger, P., Lefebvre, P. & Alencar, A. (2006) Inhibition of Amazonian deforestation and fire by parks and indigenous lands. Conservation Biology 20: 65–73.CrossRefGoogle Scholar
Nordin, C.F. & Meade, R.H. (1982) Deforestation and increased flooding of the Upper Amazon. Science 215: 426–427.CrossRefGoogle ScholarPubMed
Pacheco, P. (2006) Agricultural expansion and deforestation in lowland Bolivia: the import substitution versus the structural adjustment model. Land Use Policy 23: 205–225.CrossRefGoogle Scholar
Pattanayak, S.K. (2004) Valuing watershed services: concepts and empirics from southeast Asia. Agriculture, Ecosystems and Environment 104: 171–184.CrossRefGoogle Scholar
Peres, C.A. (1994) Indigenous reserves and nature conservation of Amazonian forest. Conservation Biology 8: 586–588.CrossRefGoogle Scholar
Peres, C.A. (2005) Why we need mega reserves in Amazonia? Conservation Bioogy. 19: 728–733.Google Scholar
Pfafstetter, O. (1989) Classificação de Bacias Hidrográficas – Metodologia de Codificação. Unpublished Technical Report (in Portuguese), Departamento Nacional de Obras de Saneamento (DNOS), Rio de Janeiro, Brazil: 19 pp.Google Scholar
Pringle, C. M. (2001) Hydrological connectivity and the management of biological reserves: a global perspective. Ecological Applications 11: 981–999.CrossRefGoogle Scholar
Rylands, A.B. & Brandon, K. (2005) Brazilian protected areas program. Conservation Biology 19: 612–618.CrossRefGoogle Scholar
Schwartzman, S. & Zimmerman, B. (2005) Conservation alliances with indigenous peoples of the Amazon. Conservation Biology 19: 721–727.CrossRefGoogle Scholar
Secretaria de Biodiversidade de Florestas/Ministério do Meio Ambiente (2007) Áreas prioritárias para a conservação, uso sustentável e repartição de benefícios da biodiversidade brasileira: Atualização – Portaria MMA no 09 de 23 de janeiro de 2007. Technical Report (in Portuguese), Ministério do Meio Ambiente, Brasília, Brazil: 326 pp.Google Scholar
Silva, M. (2005) The Brazilian protected areas program. Conservation Biology 19: 608–610.CrossRefGoogle Scholar
Silva, J.M.C., Rylands, A.B. & Fonseca, G.A.B. (2005) The fate of the Amazonian areas of endemism. Conservation Biology 19: 689–694.CrossRefGoogle Scholar
Silva, P.A. (1999) Classificação e codificação das bacias hidrográficas brasileiras segundo o Método Pfafstetter, com uso de Geoprocessamento. Anais do II Encuentro de las Águas. Governo do Uruguai/OEA/IIICA/-Instituto Latino-americano de Cooperación para la Agricultura. Montevideo, Uruguay [www document]. URL http://www.iica.org.uy/16–6-pan1-pon10.htm (in Portuguese).Google Scholar
Sternberg, H.O. (1987) Aggravation of floods in the Amazon River as a consequence of deforestation? Geografiska Annaler 69: 201–220.CrossRefGoogle Scholar
Suárez, E. M., Cueva, R.M., Bucheli, V.U., Zapata-Ríos, G., Toral, E., Torres, J., Prado, W. & Olalla, J.V. (2009) Oil industry, wild meat trade and roads: indirect effects of oil extraction activities in a protected area in north-eastern Ecuador. Animal Conservation 12: 364–373.CrossRefGoogle Scholar
Verdin, K.L. & Verdin, J.P. (1999) A topological system for delineation and codification of the Earth's river basins. Journal of Hydrology 218: 1–12.CrossRefGoogle Scholar
WDPA (2009) World Database on Protected Areas [www document]. URL http://www.wdpa.org/Google Scholar
WPC (2003) Vth IUCN World Parks Congress. Durban, South Africa, 8–17 September 2003 [www document]. URL http://www.iisd.ca/sd/worldparksV/Google Scholar
Zimmerman, B., Peres, C.A., Malcolm, J.R. & Turner, T. (2001) Conservation and development alliances with the Kayapó of south-eastern Amazonia, a tropical forest indigenous people. Environmental Conservation 28: 10–22.CrossRefGoogle Scholar