发展中国家都市农业的潜力，问题和政策的影响【外文翻译】.doc

文档介绍：毕业论文外文原文外文题目:Potentials,problemsandpolicyimplicationsforurbanagricultureindevelopingcountries出处:AgriculturalSciences,ImpericalCollegeatWye,Kent,UK作者:,,forcenturies,,-,:Environment,Foodsecurity,Gender,Governance,Livelihoodstrategies,Policy,Structuraladjustment,Urbanagriculture,(UNDP)estimatesthatapproximately800millionurbanresidentswereengagedinagriculturalproductioninthemid-mercialorsubsistence(UNDP,1996;Borgue,2000).,,amere10–25%oftheurbanpopulationinAfricawasengagedinurbanagriculturewhileupto70%oftheurbanpopulationinAfrica,andupto60%inAsia,eurbancultivatorsinthe1990s(Rogerson,1997).Today,70%,,thenumberoffamiliesengag