山西省耕地保護的研究.pdf

1、分類號密級單位代碼：10019學號；35030飛嚼巖氣天普。碩士學位論文山西省耕地保護的研究TheStudyofProtectionofplantationinShanXiProvince研究生：盆拯粱指導教師：醫(yī)煺焦敦授合作指導教師：申請學位類別：盛些推亡亟專業(yè)領域名稱：社植些研究方向：地調查皇型屆所在學院：資遂與疊縫堂院二OO五年十一月AbstractAstheworldpopulationexplodes，humanbeingre

2、quiresmoreandmolllandresourcesanditresultsinunheardofshortageindemandingforthelastdecadeyears11lecultivatedlandisdeemedtothemostimportantpartofthelandresotucesThecultivatedlandjSthematerialbasisofthefoodandeconomiccropsH

3、oweverbecauseoftlleinfluenceofsortsofthenatureandartificialfactorsthereiSsomethingwrongwiththecultivatedlandIlsourcesinShanXiduringuseTheseproblemsshouldgivesomecausesforcoficelTlnlepapercloselycirclesroundtheseproblemsa

4、boutthelargeareasofnothighproductionmanyobstaclefactorspoorinfrastructuresWeakabilitiesofresistingthedisastersseriousimbalanceofconsumingnutritionseverepollutionandSOonThentheauthoranalyzesthechangeofthe8teasofShanXiWith

5、aviewtotheoryandpracticeOnthebasisoftheresults，theauthorfmtheranalyzeskindsofthefactorswhichaffectthechangeofareasiflShahXiForthecurrentconditiOnofthecultivatedlandinShallXiOnonehandbecauseofthepopulationpressure，thecour

6、seofurbanizationandadjustmentofindustrialslructeil，theareasofthecultivatedlandshaveobviouslydecreasedOntheotherhand。becauseofsolIandwaterlOSS，soildesertification，soilsecondarysalinityandfarmlandpollutionandSOonthequaliti

7、esofcultivatedlandshavecontinuallydescendedAimingatthesevererealities，aseriesofeffectivemeesmesforthecultivatedlandprotectionarediscussedindetailFirstlystilngtheningtheprotectionoftheprimefarmlands；secondlycorrectlydeali

8、ngwiththerelationbetweeneconomicconstructionandcultivatedlandresources；thirdly，establishinglandsystemsforpoJduse；fourthly，increasingtheconstructionofprojectinecologyAtthesametime，thesustainabledevelopmentforthecultivated

9、landiSsetforthinvariousways，suchascultivatingsoilfertilitylandconsolidation，rationalfarmcropratiostrengtheningtheconstructionofecologicalprojectforfarmlandandadjustingagriculturalindustrialstructureandSOonBesides，stickin

10、gcloselytoLandManagementLawtkindsoffeasiblelawsandregulationsforlanduseshouldbeconstantlysuppliedandlanduselawsystemsshouldbefuTtherperfectedAccordinglytherearefeasiblelawsto90byforthelandUSeandmanagementindeedInthiswayi