Local Water Supply And Management A Compendium Of 30 Years Of IdrcFunded Research2.docx
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LocalWaterSupplyAndManagementACompendiumOf30YearsOfIdrcFundedResearch2
LOCALWATERSUPPLYANDMANAGEMENT:
ACOMPENDIUMOF30YEARSOFIDRC-FUNDEDRESEARCH
DavidB.Brooks,SarahWolfeandTillyShames
InternationalDevelopmentResearchCentre
Ottawa,Canada
October2001
CONTENTS
1INTRODUCTION
.1DevelopmentProblemandDonorResponse
.2RoleofSocialAdaptiveCapacity
.3ObjectiveofthisResearchReview
.4ScopeandSources
.5OrganizationoftheReport
2RESEARCHRESULTSANDIMPACTSOFPROJECTS
.1TraditionalKnowledgeandCapacitybuilding
.2SmallScaleWaterSupplyandTechnology
.1FogCollection
.2RooftopRainwaterCatchment
.3FieldWaterHarvesting
.4AquiferProtectionandRecharge
.3WastewaterandWaterReuse
.4WatershedManagementandIrrigation
.1SurfaceWater
.2ConjunctiveUseofWater
.3SubsurfaceWater
.5Evaluationand“ClosingtheLoop”
3SUMMARIESOFLOCALWATERSUPPLYANDMANAGEMENTPROJECTS
.1ProjectListbyCategories
.2ProjectListbyNumber
.3AccessingIDRCProjectPrecisesthroughtheWeb
4KEYWORDINDEX
ANNEXA:
EXCERPTFROMHEALTHSCIENCESDIVISIONREPORT
ANNEXB:
SOCIALADAPTIVECAPACITYANDIDRC
CHAPTERONE:
1INTRODUCTION
ThisresearchreviewbringstogetherinformationontheprojectsthatIDRCfundedonlocalwatersupplyandmanagementprojectsduringitsfirst30yearsofsupportforresearchandrelatedactivities.Theoriginalintentoftheauthorswastoproduceaninternaldocumentthatcouldidentifyresearchresultsandinformfuturefunding.However,asinformationwasgathered,werealizedthatsomeofthelessonswereofwiderimport.Lessonscouldbedrawnnotonlyforfundingfurtherresearchbutalsofordesigningprogramsandpolicies.Otherresearchcentres,notablytheInternationalWaterManagementInstitute(IWMI)aswellassomedonoragencies,notablytheAgaKhanFoundation,arebeginningtolookatresearchonlocalwaterprojectswithmoreinterest.1UBC'sCentreforIndiaandSouthAsianResearchsponsoredaninternationalworkshopthatbroughttogetherCanadianandforeignspecialiststodiscusstheissue.2TherecentreportoftheWorldCommissiononWatermadeagreatdealoftheopportunitiesofferedbygreaterparticipationin,anddecentralizationof,decisionsonthesupplyanduseoffreshwater.3Inthesecondofthe“drasticchanges”thatneedtobeintroducedinthewaythatwaterismanaged,theCommission’sreportstated:
4
Participatoryinstitutionalmechanismsmustbeputinplacetoinvolveallsectorsofsocietyindecisionmaking
Theoldmodelof“thisisgovernment’sbusiness”mustbereplacedbyamodelinwhichstakeholdersparticipateatalllevels.Atthelocallevel,communitygroupsandusers’associationshaveamajorrole–sometimesinself-providingandmanagingtheirlocalsewerageorirrigationworks,sometimesinmonitoringtheperformanceofpublicandprivateserviceproviders,sometimesinmanaginglanduseintheirlocalwatershed....Experienceshowsthatthisparticipationmustberealandnotsymbolic,andshowsthattheseusers’associationsandparliamentsmusthaveadecisiveroleindecidingwhatisdone,howitisdone,andwhopaysforit.
Itwouldappearthatlocalandcommunity-basedwatermanagementisanoldideawhosetimehascomearoundagain.Forallofthesereasons,thisresearchreviewisbeingpublishedinIDRC’sOccasionalPapersseries,andplacedonIDRC’swebsite(www.idrc.ca).ThereviewwillalsobecomethebaseforthefirstpublicationinanewseriesofIDRCfocusbookshighlightinglinkagesbetweenresearchandpolicy.Asyetuntitled,thenewbookisexpectedtoappearinthespringorearlysummerof2002.
TherehaveonlybeentwooverallreviewsofwaterinIDRCprogramming.ThefirstreviewwaspublishedintheSearchingSeries(anannualinformalreportnolongerpublished),whichemphasizedthebroadimportanceofresearchonwaterandIDRC’sspecificcontributiontothatresearch.5Theotherwasadetailedreviewofthefirst20yearsofIDRCsupportforwater-relatedprojects,butitwasreallyanextendedproposalbytheHealthSciencesDivision6forcreationofacoordinatedprogramonwaterwithinIDRC.7Unfortunately,theproposalappearedjustatthetimeIDRCresourcesbegantobecut,anditremainedasanunpublishedms.Theformerappearedin1989,thelatterin1991,andneitheremphasizedcommunity-basedwatermanagement.Inadditiontothesetwobroadreviews,areviewofurbanwaterprojectswaspreparedbytheSocialSciencesDivisioninthemid-1990s,aspartofanexplorationofpossiblenewprogramareas.8However,withthecontinuingbudgetcuts,nothingcameofthiseffortapartfromcontinuedsupportforurbanagriculture,whichofcoursehasawatercomponent.Theonlyotherreviewwasdonebyaninternin1998,andfocuseson“emergenttrendsinenvironmentallysoundandeconomicallyviableapproachestowastewatermanagementinthedevelopingworld.”Excludingnetworks,thatreviewidentifiedmorethan70projectsfundedpriorto1998thatdealtwithoneoranotheraspectofwastewaterfromdomestic,industrialoragriculturalsources.9(Therewasofcourseoverlapbetweentheselasttworeviews,andsomeprojectsarelistedinboth.)Neithertheurbanwaternorthewastewaterreportwasorientedtowardcommunity-basedwatermanagement,butmuchofwhattheycoverisdirectlyorindirectlyrelevanttoit.
AsemphasizedbytheHealthSciencesDivision,waterhas,withveryfewexceptions,beenacross-cuttingissueinIDRCwithoutmuchspecificidentificationinprogramformulation.Water-relatedfundinghasaccountedforaround5%ofCentreresources,andallpartsoftheCentrehavecontributedtothateffort.Atonetime,theCentreevenhelpedtolaunchalow-costjournalcalledWaterlinesforprofessionalandtechnicalpeopleworkinginthefield;anothertimeitfundedawaterthesaurus;andinthe1980sitfundedoveradozeninformationservicesornetworksonwaterandsanitation.OfthesevendivisionsthatmadeupIDRC’sresearchfundingstructurethroughthemiddle1990s,twoaccountedforthree-quartersoftheprojectfundingandfivefortheremainingone-quarter.OnlytheHealthSciencesDivisionandtheEarth&EngineeringSciencesDivisionweretrulyactiveinwaterprogramming,andonlytheformerwasarealexceptiontothegeneralizationaboutdispersionofwater-relatedprogrammingwithinIDRC.
.1WaterScarcityasaWorldwideProblem
Scarcityoffreshwaterforhumanuse,foranimals,andforgrowingfoodisoneofthegreatestobstaclestoachievementofsustainableandequitabledevelopmentthroughouttheworld.Inmanyregions,itisthesinglegreatestobstacle,oratleastthesinglegreatestnaturalresourceobstacle.10
Withinthenext25years,one-thirdoftheworld’spopulationwillexperienceseverewaterscarcity,andanotherthirdmoderatescarcity.
Morethanonebillionpeopledrinkdirtywatereveryday,andsome10,000diedailyfromthemostcommonwater-bornediseases.
Despitetheforegoing,theworld’smajorwaterproblemisnotwatertodrinkbutwatertogrowfood.Two-thirdsofallwaterisusedforirrigation,mainlyindevelopingcountries,andmanycountriesmustincreaseirrigationtoavoidstarvation.
Theseproblemsareaccentuatedinthedrierpartsoftheworld.
Watershedslocatedinaridandsemi-aridregionsarehometoaboutone-sixthoftheworld’spopulationbutcontain70%oftheabsolutelypoorand44%ofthechildrenwhosegrowthisstuntedbymalnutrition.
Of20nationswithinternalrenewablefreshwateravailabilitybelow1000cubicmetrespercapita(acommonlyusedcriterionofwaterscarcity),15areintheMiddleEastandNorthAfrica.11TheothersareHungary,SouthAfricaandthreecountriesinEastAfrica.Aswell,thedrierpartsofChinaandIndiaareundertheline.
Indeed,theseratiosoverstateavailabilityandunderstatescarcity.Alargeproportionofthefreshwatermustbeleftinplace–inrivers,inlakes,underground–tosupportcriticalecosystemsaswellastopermitotherhumanactivities,suchastransportationandfisheries.Emphasisinthisdocumentisplacedonfreshwaterforhouseholdsandforagriculture,butthatsamewaterhasmanyotheruses,andtypicallythesamewaterisusedfortwoormoreofthem.(Oneofthemoresignificantwaysinwhichgenderissuesintersectwithwatermanagementdecisionsinvolvedstheallocationofwaterbetweenhouseholdandotheruses.)Evenirrigationwater,wearenowlearning,isusedformanypurposesbesidesagricultureinruralcommunities–and,further,healthconditionsinthosecommunitiesaresignificantlydependentupontheavailabilityofthatirrigationwater.12
.2DevelopmentProblemandDonorResponse
Thoughwatersupply,availabilityandaccessproblemsoccurthroughouttheworld,theyaremostpressinginthedevelopingworld.Insomeregionsthoseproblemsstemfromlackofrainfall;inothersfromdegradationofavailablesupplies;instillothersfromtoomanypeopleseekingtouseafixedquantityofwater.Notafewnationssufferfromallthreeproblemssimultaneously.Mostnationsinthedevelopingworldlackboththecapitalandtheinstitutionstocopewiththeproblem,andinsomeregionscriticalgapsinknowledgeorapparentlyinexorableshiftsinclimatefurtherfrustrateeventheattempt.Theresult,inextremecases,isdeath:
oflivestock,ofcrops,ofpeople.Almosteverywhere,theresultiscontinuinghealthproblems,shortenedlifespans,poorworkingconditions,inadequateincomes,anddepressedqualityoflife-witheachoftheseeffectsfallingdisproportionatelyonwomen,childrenandothervulnerablegroups.
Forsimplicityofexpression,throughoutthisdocumentweuse“waterscarcity”toconflateanum
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