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Cooltreesasbasisforfarmers’mi/gadapta/on
Ecosystem-basedadapta/on,RioPavillionCOPPARIS02-12-2015
MeinevanNoordwijkChiefScien/st,WorldAgroforestryCentre(ICRAF);ProfessorofAgro-forestry,WageningenUniversity
Longcycle:oceanstoland
Shortcycle:Landtoland
Threethingsgotseparatedthatbelongtogether
• Treesandfarmers• Climateandrainfall• Climatechangemi/-ga/onandadapta/on
Agroforestry Biological rainfall generation Mitigadaptation
Decarbonizingthedebateonforests,treesandclimate:cooltrees
Treesmakeitcooler,helpwithrainfallandkeepthesoilmoist
UNFCCC:globalclimatechangedependson
greenhousegasemissions
Thiscarbonthingishardtounderstand,wecan’tseeit…
vanderEntRJ,SavenijeHHG,SchaefliB,Steele-DunneSC,2010.Originandfateofatmosphericmoistureovercon/nents.WaterResourcesResearch46,W09525,
E/P
PfromEt/P
Blue water streamflow
Rainfall triggering conditions
Precipi- tation
Rainbow water Atmospheric transport
Soil & ground-water buffering
Gre
en w
ater
ET
evap
otra
nspi
ratio
n Precipi- tation
Gre
en w
ater
ET
evap
otra
nspi
ratio
n
Blue water streamflow
Soil & ground-water buffering
Stem-flow
Through-fall
Rainfall Cloud interception
Lateral
outflows (interflow) Recharge
Soil surface evaporation
Transpiration
Canopy water evaporation
Uptake
Quick- flow
Base flow
{
Surface run-on Surface
Run-off
Streams & river
Litter layer
Sub-surface lateral inflows
Infil-tra-tion
Percolation
Canopy inter-
ception
• Treesconsumewater• Treesrecyclewater• Treeshelpstorewaterbychangingsoiltobe
amoreeffec/vebuffer
• Streamflowfromhealthycatchmentswithforestsandtreesismoregradual
Higherevapotranspi-ra/onmeansmorecoolingeffect
Higherevapotranspi-ra/onmeansmoreatmosphericwatervapour
Prevailingwinds
Bio/c-pump-inducedairflows?
Oceanicinput
Biologicalprecipita/ontriggers? Rainfall
Downstreamwateruse,livelihoodsrisksandbenefits
Scien1-fic
debate
Downstreamanddownwindbenefitsofwatershedrestora/on