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Integrated Ecological Economic Modeling of Ecosystem Services from Brazil's Amazon Rainforest

Integrated Ecological Economic Modeling of Ecosystem Services from Brazil's Amazon Rainforest. By Rosimeiry Portela At Conservation International Washington, DC July, 2005. Introduction. UC Davis.

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Integrated Ecological Economic Modeling of Ecosystem Services from Brazil's Amazon Rainforest

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  1. Integrated Ecological Economic Modeling of Ecosystem Services from Brazil's Amazon Rainforest By Rosimeiry Portela At Conservation International Washington, DC July, 2005

  2. Introduction UC Davis The Amazon tropical rain forest: Largest tract of tropical forest on Earth with half of the species of the world. • Vegetation: Regional pattern of precipitation and radiation and and regulation of GHGs. • Plant animal interactions and nutrient cycling.

  3. Legal Amazon, Brazil

  4. “To try to understand the structure and function of …(the Amazon) is comparable to composing a mosaic picture. www.redjellyfish.com www.bbcnews.com www.bbcnews.com www.bbcnews.com gustavofonseca www.bbcnews.com Sioli, H. 1984

  5. RUMBA: Integrating functions of the ecosystem to human economy and social interactions… …with the main focus on the contribution of the ecosystem goods and functions to human economy and welfare.

  6. RUMBA: Scenarios • Baseline: Historical trends; • Scenario 1: Increased investment in BC with region’s own financial resources; • Scenario 2: Increased investment in BC with region’s and external financial resources; • Scenario 3: Increased investment in NC with region’s own financial resources; • Scenario 4: Increased investment in NC with region’s and external financial resources. www.bbcnews.com www.bbcnews.com

  7. Research Results: Annual Deforestation RatesBaseline and Alternative Scenarios

  8. Research Results: Annual Deforestation Rates Year 2050 • Scenario 1: 27 thousand km2 yr-1 • Scenario 2: 29 thousand km2yr-1 • Scenario 3: 22 thousand km2yr-1 • Scenario 4: 25 thousand km2yr-1 Forest is cleared at a faster rate under scenarios of increased development. 2050: Baseline: 26 thousand km2 yr-1

  9. Research Results: Annual Deforestation Rates Deforested areas under scenarios of increased development are higher than those of conservation and Baseline Deforestation in Scenario in Relation Baseline (2100) • Scenario 1: -73 thousand km2 • Scenario 2: -171 thousand km2 • Scenario 3: +205 thousand km2 • Scenario 4: +45 thousand km2

  10. Research Results: Land Cover/Land Use Composition Baseline Scenario Strong trend in land conversion from forest to other land uses; • 1975: 96% forest cover • 2100: 26% forest cover Land Use • Pasture: 40% • Fallow: 24% • Agriculture: 10%

  11. Results: Climate Variables/Baseline Scenario • Precipitation: 23% reduction • Evapotranspiration: 26%reduction • Temperature: 11% increase • Forest Carbon Balance: Decreasing Uptake and Increasing Emissions www.Redjellyfish.com

  12. Results: Ecosystem Services Variables • Removal of forest cover leads to increasing losses of ecosystem services: +70% by 2100 • Higher losses observed in scenarios of increased development • Monetary valuation: Increasing prices per unit of service www.greenpeace.com

  13. Results: Average Values of Ecosystem Services www.greenpeace.com

  14. Results: Monetary Valuation of Ecosystem Services Value of ecosystem services is estimated at about 5 times the GRP

  15. Results: Capital Variables/Baseline Scenario www.greenpeace.com POPULATION GROWTH (1E6 People) 1975 2100 BASELINE 11.0 61.2 SCENARIO 1 66.3 SCENARIO 2 67.9 SCENARIO 3 55.1 SCENARIO 4 57.4

  16. Results: Capital Variables/All Scenarios

  17. Results: Capital Variables/Capita All Scenarios

  18. Results: Economic Variables GRP

  19. Results: Welfare/All Scenarios

  20. Results: Compensation for Avoided Deforestation www.junglephotos.com Gains to the regional economy from forest conversion against losses associated with emissions Scenario 3 (2005-2091) • Forest spared from deforestation : 210 thousand km2 • Avoided Emissions: 3.0 Pg C • Foregone economic growth: US$ 1.7 Trillion • Amazon Deforestation: 0.3 Pg C yr-1 • Kyoto Target: 0.5 Pg C yr-1

  21. Results: Single Compensation for Avoided Emission

  22. Results: Continuous Compensation for Avoided Emission

  23. Discussion: Main Findings • Increasing land use change in the Brazilian Amazon incurs significant losses without this being adequately offset by increasing monetary income or welfare of people of the region. www.nasa.com • In the absence of significant incentives from global beneficiaries for any one ecosystem service or a combination of incentives addressing several ecosystem services, rational uses at the local level lead to sub optimal uses from the global perspective.

  24. Discussion: Alternatives • Effective Comand and Control Regulations • Efficient Market-Based Instruments: • Carbon-offsetting trading • Conservation Concession • Timber Certification • Fair Trade • Secure Property Rights • Tradeable Development Rights • International Grants Resources • Global Forestry Agreements www.junglephotos.com

  25. Overall Conclusions • Deforestation proceeds at high rates in the Brazilian Amazon • The region suffers significant climate changes and losses of forest services as a result of forest removal • Increasing regional economic growth is not translated into increasing monetary income and welfare • Protection of forest will require a concerted long-term effort www.junglephotos.com

  26. Model Limitations and Caveats RUMBA: A unified metamodel • Use of average parameters; • Assumptions to model processes that are poorly understood; • Linearly homogeneous production functions; • Sensitivity of production limits of biosphere to climate variables; • Sensitivity of economic production to climate variables and decreasing stocks of natural capital; • A economic distribution function. www.bbc.com

  27. ‘What we are doing to the forest of the world is but a mirror reflection of what we are doing to ourselves and one another’. —Mahatma Ghandi www.freejunglephotos.com

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