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ID:40559566
大小:290.22 KB
页数:8页
时间:2019-08-04
《Action for Sustainable Sugar》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、WWFActionforSustainableSugarmakingitsweeterfornatureEnvironmentalImpactsofSugarWATERSCARCITYDEGRADEDSOILSTheworldisfacingagrowingwatercrisisEstimatesofsoillossesduetowindandagricultureisbyfarthebiggestwatererosionundersugarbeetrangefrom5-18usertaking70percentof
2、withdrawalsontonnesperhectareperyearintheUSA.Inaverage;moreinmanydrycountries.canegrowingareas,steepslopesareoftenSugarcaneisadeep-rooted,waterplanted,resultinginsoillossduetotheintensivecropwhichremainsinthesoilallintenserainfallthatmanytropicalareasyearroundu
3、singsome7,000-45,000litresreceive.Soillossesduringharvestarealsoofwaterperhectareofcropgrown.Eveninacauseforconcern;tenpercentoftheareaswheresugarcaneisfedbyrainfall,totalbeetharvestand3-5percentofthethecropaffectsriverflowbyinterceptingcaneharvestissoil(tare).
4、run-offfromthecatchmentanddrawingheavilyonundergroundwatersupplies.AIRPOLLUTIONMostsugarcanemillsburnbagasse(fibrousTheconstructionofdamsandirrigationwasteproducedduringmilling)asfuel.systemsinPakistanoverthelast60yearsWhilebagasseisarenewableenergyhascompromis
5、edtheexistenceofthesource,ifpollutioncontrolequipmentisnotendangeredBlindRiverDolphin,whichwasinstalledflyashintheatmospherecanfoundthroughouttheIndusanditsimpactonnearbycommunities.Burningoftributaries100yearsagobutnowexistsincanepriortoharvestalsocausesairjus
6、tsixtotallyisolatedsub-populations.pollution,increasessoilerosionandThedevelopmentofintensiveirrigationreducescanequalitybyreducingsucrosesystemshasalsoledtowaterwastage;incontentbyuptofivepercent.manycasesonly30-35percentofthewaterwithdrawnforfarmingreachesthe
7、cropandtherestislostfromirrigationchannelsandfields.Morethan145milliontonnesofWATERPOLLUTIONsugar(sucrose)isproducedperHighwateruseisgenerallyassociatedwithyearinabout120countries.Tosignificantrunoffofpollutedwater.Insomeassesstheeffectofsugarareas70percentoffe
8、rtilisersappliedareproductionontheenvironment,lostfromfarmland,underminingfarmers’CABIBioscience,inpartnershipprofitsandharmingecosystems.InbeetwithWWF,undertookareviewofstu
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