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ID:34031092
大小:3.14 MB
页数:80页
时间:2019-03-03
《区域耕地资源安全预警的研究——以毫州市为例》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、摘要IIAbstractCultivatedlandresourcesisthemostvaluablematerialfoundationformaintainingtheecologicalentirement,survivalanddevelopment9fthehumanbeings.Inrecentdecades,withtherapiddevelopmentofoursocietyandeconomy,allkindsofconstructhaveoccupiedlotsofcultivatedland,especiallyhigh—qualitycult
2、ivatedland,whichmakesthequantityofcultivatedlandkeptonincreasingandthequalitydecreasing.Againstthebackground,conductingearlywarningofcultivatedlandresourcessecurityisofgreatsignificanceinensuringChina’Sfoodsecurity,promotingtherationalallocationofcultivatedlandresourcesandalleviatingthe
3、contradictionbetweenhuamansandland.Onthebasisofdrawinglessonsfromforeignanddomestictheories,researchmethodsandresearchfruits,thepaper,fromtherespectiveoftheconceptsandconnotationofcultivatedlandresourcessecurity,attemptstoestablishtheearlywamingsystemfromthefollowingthreeaspectsofcultiv
4、atedland:quantitysecurity,qualitysecurityandsociety-economicsecurity.ItalsohasmadesstudyofBozhoucitytoearlywarnofitscultivatedlandresoucessecurityintheyear2015.(1)Forcastingthepressureindexofregionalcultivatedland.Onthebasisofthedataaboutthecultivatedlandareas,foodproductivityandpopulat
5、ionchangesduring2000—2009ofBozhou,thisdissertation,throughrelatedindexforcast,hascalculatedtherealpercapitacultivatedlandareaandtheleastpercapitacultivatedlandareain2015,italsointroducedthepressureindexmodelofcultivatedlandtoprobethepressureofcultivatedlandofBozhoucityin2015.Theresearch
6、indicatesthatthecultivatedlandofBozhouin2015hasnoobviouspressure,foodproductioncannotonlymeetthedemandsofeconomicdevelopmentandgrowingpopulation,嬲wellasalargesurplusforAnhuiProvincetomakecontributionsforthewholecountry.(2)Studyonearlywarningofregionalcultivatedlandresourcessecurity.Firs
7、tly,establishingtheearlywarningsystemtomakeawarningscoreofvariousindeces;secondly,usingthefuzzycomprehensiveevaluationtoconstructthewarningmodel,SOastodeterminethesafetylevelofBozhouin2015.Theresearchindicatesthatthelandresourcessafetyaccountsfor74.17%and25.83%incaseofsmallandm
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