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Cool trees as basis for farmers’ mi/gadapta/on Ecosystem-based adapta/on, Rio Pavillion COP PARIS 02-12-2015 Meine van Noordwijk Chief Scien/st, World Agroforestry Centre (ICRAF); Professor of Agro- forestry, Wageningen University Long cycle: oceans to land Short cycle: Land to land

Cool trees as basis for farmers' mitiadaptation

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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

Threethingsgotseparatedthatbelongtogether

•  Treesandfarmers•  Climateandrainfall•  Climatechangemi/-ga/onandadapta/on

Agroforestry Biological rainfall generation Mitigadaptation