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Theme 2 – From policy to impact. Celso von Randow, Ana Paula Aguiar , Kirsten Thonicke , Eloi Dalla -Nora, Dorian Frieden , + DGVM groups. Outline . Introduction: LUC modeling approaches, international vs regional factors
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Theme 2 – From policy to impact Celso von Randow, Ana Paula Aguiar, Kirsten Thonicke, EloiDalla-Nora, Dorian Frieden, + DGVM groups
Outline • Introduction: LUC modeling approaches, international vs regional factors • LuccME projections: inputs from stakeholders; qualitative effects of international policies (e.g. biofuel targets) • DGVM runs • Analysis of impacts on provision of ecosystem services
General structure of LUC models • Despite the diversity of land use models found in the literature it is possible to identify a common functional structure that is valid for most of the available cases; Dalla-Nora et al., (no prelo)
LUC MODELS FOR THE AMAZON 2020 2020 2050 Aguiar et al., 2006 Lauranceet al., 2001 Lapolaet al., 2011 2050 2030 Soares-Filho et al., 2006 Nepstadet al., 2008
Quantity of change in LUC models • None of the previous studies were able to plausibly capture the general trajectory of land cover change observed in this region during the last decade; Dalla-Nora et al., (no prelo)
Model results and Amazon LUC dynamics • If Amazon deforestation was a result of price movements, we would expect that the slowdown in deforestation would be conjunctural and temporary; Dalla-Nora et al., (no prelo)
Model results and Amazon LUC dynamics • Protected areas (PAs) • 240 new PAs from 2004 • +65% over 2000-2004 • 55% of the remaining forests. • Credit access • All lines of rural credit • -65% (all rural municipalities) • -77% (MT, PA, RO) • Command and control • Monitoring and enforcement • +8.823 fines • 70 times more over 2000-2004 Dalla-Nora et al., (no prelo)
Model results and Amazon LUC dynamics • Previous modeling studies were not able to integrate the global and regional forces that shape land use dynamics in the Amazon; • Scenarios' formulation was also quite simplistic which compromised their ability to explore contrasting pathways; • It's necessary to adopt an innovative modeling framework to represent land use systems as open systems;
MAGNET global model Amountofchange Global: population, GDP andproductiongrowth + biofuelstargets Regional: roads, protectedareas, credit LUCCME Demand (scenarios) Stakeholder Storylinesandcontrasting rates ofchange SpatialPatterns LUCCME Potential/Allocation (scenarios) Visions – Stakeholder inputs Regional: roads, protectedareas, lawenforcement Biophisical, socioeconomicandinstitutionalfactorsaffectthe DemandandAllocation
Premises • Scenario C • 19500 km2yr-1 (until 2100) • (ave 1996-2005) • Scenario B: • 3900 km2 in 2020 • (20% 19500 km2) • Scenario A: • “Zero” • Deforestation • Scenario D? 10000km2
(A) Scenario A: Deforestation in 2050 (B) Scenario B: Deforestation in 2050 (C) Scenario C: Deforestation in 2050 (D) Scenario A: Secondary Vegetation in 2050 (E) Scenario B: Secondary Vegetation in 2050 (F) Scenario C: Secondary Vegetation in 2050 (G) Scenario A: Agriculture in 2050 (H) Scenario B: Agriculture in 2050 (I) Scenario C: Agriculture in 2050
DGVM runs Yearlyanomaliesintermodelcomparison
Use DGVM results in quantifyingchanges in ESS provision Kirsten Thonicke, Alice Boit, Fanny Langerwisch, Anja Rammig, Ariane Walz PIK Potsdam
Make selection of 3-5 Ecosystem Services carbon storage in t C= VegC + LitterC + Soilc NEPin t C= NPP-rh-fire-harvest-deforested over all pftsandcfts Global Climate Regulation Which DGVM otherthanLPJmLcanprovidebasin-widedata? accessibility = numberofmonthwithsufficientdischargeforshipping (toOpidos) rainwaterrecyclingin mm/m2 = transpirationover all PFTs in naturalvegetation (andcfts?) Regional Climate Regulation Accessibility (Obidos) areaofdegraded ES in natureconservationareas = conservationarea – areaswithdecreasebyone „degradationclass“ Area withecosystemsofintegrity t ofwoodextractablewithroadextention = C in woodbiomass Potential Timber Extraction Overlaywithcurrentshape-files ofprotectedareas Calculatehabitatfromfractionalcover per PFT andbiomass
Multi-model ESS projection Please add!
Ecosystem Services: further options Regulation of Flooding regulationoffloodingaschange in regularflooding= |meanareaofflooding in km2 (1990-2009) - floodedarea in km2| Which DGVM otherthanLPJmLcanprovidebasin-widedata? Interesting for stakeholder dialogue? Land suitable for indigenous lifestyles areaofheavilydegraded ES in areasprotectedforindigenouspeople = protectedarea – areawithdecreasebytwo „degradationclasses“ Overlaywithcurrentshape-files ofprotectedareas Calculatehabitatfromfractionalcover per PFT andbiomass