简介：

简介：

简介：Sincethereformandopeningup,thelocalgovernmenthasplayedakeyroleinpromotingtheeconomicandsocialdevelopmentofourcountry,andtheeffectiveimplementationofthelocalgovernmenthasbecomeanimportantresearchtopic.Therefore,basedontheliterature,theobservationmethodofin-depthinterviews,practiceinvestigationandparticipationisadoptedinthispaper,whichfocusesontheimplementationofspecialgroupsofsocialassistancepolicy.Thetheoreticalframeworkofgovernment’rationalchoicerevealsthestatusoflocalgovernmentimplementationpoliciesandbehaviorbehindthemechanismandorganizationalstructure.Thestudyfoundthat:(1)thelocalgovernmentiseasytochooseaquantifiablepolicytoimplement;(2)thereisacoexistencebetweenthelocalgovernmentdepartments;(3)thelocalgovernmentselectivelymeetstheneedsofspecialpersonnel;(4)thelocalgovernment’sseekingpoliticalpromotionandpowerleadstoitsbehavioralienation.

简介：

简介：IntheframeoftheSino-ItalianCooperationProgramforEnvironmentalProtection,jointlylaunchedintheyear2000bytheItalianMinistryforEnvironmentandTerritoryandSea(IMETS)andtheChinaStateEnvironmentalProtectionAdministration(SEPA),experimentaltrialswerecarriedoutinQingzhoucity(ShandongProvince,China)during2001-2003totestseveralmethylbromidealternativemethodstocontrolsoilbornediseasesingreenhousetomatoes.Graftingtomatoesonresistantrootstock(Lycopersiconlycopersicum×L.hirsutum),methamsodiumappliedundertraditionalpolyethyleneplasticfilms,methamsodiumappliedatlowrateundervirtuallyimpermeablefilmsandsoilsolarizationcombinedwithbiocontrolagentswerethealternativestestedandcomparedtomethylbromideappliedundervirtuallyimpermeableplasticfilmstoo.Collecteddatashowthatresistantrootstock(Lycopersiconlycopersicum×L.hirsutum)introducedfromItalyisapromisingalternativetomethylbromideforlocaltomatocultivars.Methamsodiumappliedundertraditionalpolyethyleneplasticfilmsisaneffectivealternative.Moreover,virtuallyimpermeablefilmsdemonstratethehelptoreducemethylbromideandmethamsodiumrates.Finally,soilsolarizationcombinedwithbiocontrolagentsdoesnotprovidesatisfactoryresultsintermsofdiseasecontrol.