简介：Producinggoodsandservicesallneedswaterconsumption.Thewaterusedintheprocessofanagriculturalorindustrialproductiscalledthe"VirtualWater"containedinthisproduct.Throughinternationaltrade,water-scarcecountriesandregionscouldpurchasewater-intensiveproducts--especiallyfoods,fromwater-richcountriestobalancetheirwaterdeficitsandachievewatersafety.Chinaisoneofthe13mostwater-deficitcountrieswhosewatersafetyhavebeenseverelychallenged.Thispapergeneralizedtherecentglobalresearchdevelopmentandmadeabriefintroductionaboutthemethodscalculatingvirtualwatercontentinspecificproducts.Asacasestudy,wequalifiedChina'sannualvirtualwaterflowsfromyear2000to2002withtradeincrops,andendedwithsomepolicyadviceforapplicationandpracticeofvirtualwaterstrategy.

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简介：Althoughchemicalcontrolofpestsincreasescropproduction,itbringsalotofdamagetoenvironmentandhumanhealth.Thereexistanumberofalternativemethodsthatarenotsoharmfultoenvironmentandhumanhealth.However,whetherandhowmuchinextentthesetechnologiesadoptedareplausibledependsonthecomparisonofbenefit-costbetweenchemicalcontrolandthealternativecontrolmethods(suchasIntegratedPestManagement,IPM)andfarmers'willingness-to-pay(WTP)forenvirormentandhumanhealth.Usingcontingentvaluationmethod(CVM),theauthorinvestigatesfarmers'WTPforenvironmentandhumanhealth,recognizesthefactorsinfluencingWTP,andaccordinglypointsouttheimportanceofpestcontroltechnologyextensionandgovernmentregulationofpesticides.

简介：SinceChinasetthesustainabledevelopmentstrategy,positiveprogresshasbeenmadeinimplementingthestrategy,andactivecontributionshavebeenmadetothesustainabledevelopmentofmankind.Currently,profoundchangesaretakingplaceinChina'sinternalandexternalsituation.Anewerahasbegunintheimplementationofthesustainabledevelopmentstrategy.Weshouldtakefulladvantageofthisopportunityandmakeuseofallfavorableconditionsandchancestofurtherpromotetheimplementationofthesustainabledevelopmentstrategy.

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