Trees on farms: Unexplored big wins for climate change through landscape restoration
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Transcript of Trees on farms: Unexplored big wins for climate change through landscape restoration
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Treesonfarms
GlobalLandscapeForum,Marrakech,16Nov2016
HenryNeufeldtWorldAgroforestryCentre(ICRAF)
Unexploredbigwinsforclimatechangethroughlandscaperestoration
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Zomer etal,2016.Globaltreecoverandbiomasscarbononagriculturalland:thecontributionofagroforestrytoglobalandnationalcarbonbudgets.NatureScientificReports,6:29987.DOI:10.1038/srep29987
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• Treesonagriculturallandmakeanimportantcontributiontoclimatechangemitigation:overthepastdecadetheyhavesequestered0.7Gt CO2 peryearacrosstheglobe
• ThiscarbonpooliscurrentlynotbutshouldbeaccountedforinIPCCandnationalinventories• Thereareregionalhotspotsbothofbiomassincreaseandloss:identifyingthedriversmay
helpreplicatepositivetrendsandrevertnegativeones• Thisglobaldatasetneedstobesupplementedbyregionalassessmentsofcarbonstock
changestoverifytrendsandprovidebetterdatafordecisionmaking
Zomer etal,2016.Globaltreecoverandbiomasscarbononagriculturalland:thecontributionofagroforestrytoglobalandnationalcarbonbudgets.NatureScientificReports,6:29987.DOI:10.1038/srep29987
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• Brazilincreasingby14%
• Argentina’sstocksshowedthelargesttotaldeclinedecreasing20%,(0.18PgC)
• Onaperhectarebasis,Agentina’s decreasefrom17.8to14.2tC/harepresentsa3.6%decreasebiomasscarbonovernearlyahalfmillionkm2 ofagriculturalland.
• ”Hotspots”ofbiomasslossareevidentalongthecoastofEcuador,northeastBrazil
AboveandBelowGroundBiomassCarbononAgricultural
Land
TheContributionofAgroforestryto
NationalCarbonAccounting
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• HotspotsofofbiomasscarbonlossinWestAfrica
• SierraLeone- 25%decrease• Guinea– 14%decrease• Cameroon– 7%decrease• Nigeria– 6%decrease• Tanzania– 16%decrease• EquatorialGuinea– 18%
• CotedeIvoire – 7%increase• Ghana– 23%increase• Madagascar– 24%increase
AboveandBelowGroundBiomassCarbononAgricultural
Land
TheContributionofAgroforestryto
NationalCarbonAccounting
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AboveandBelowGroundBiomassCarbononAgriculturalLand
TheContributionofAgroforestrytoNationalCarbonAccounting
Increaseinbiomasscarbonstock:Bangaldesh 20%- Indonesia9%– Malaysia10%- China8%India7%– Thailand6%- PapuaNewGuinea4%
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Agroforestryhasmultiplebenefits:• Provisionofecosystem
services• Farmerlivelihoodsthrough
diversification• Higherresiliencetoclimate
shocks• Mitigation
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• Requiresabiginvestmentinscalingupsuccessstoriesbyverifyingresultsontheground,developingtheappropriatepolicies,marketforces,extensionandfarmercapacityandscienceneededtoreachca.100,000farmersacrosstheglobeinregionalhotspots
• Identifythedriversofchange(positiveandnegative)andputinplacestructurestoreplicatesuccessandinvertnegativetrends
• Measurethebenefitsinsocial,economic,politicalandenvironmentaldimensions
ThePitch
• Weneedtoensurethatpastgainsaremaintainedandpotentiallyexpanded• Weneedtomakesurethatlossesarerevertedacrosstheglobe