基于田间数据的土壤肥力质量综合评价.pdf

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1、第28卷增刊22012年10月农业工程学报TraIlsactionsoftheChineseSociet)rofA鲥cult眦alEngineeringV01．28S印p．2Oct．2012151Comprehensiveevaluationofsoilf．ertilityquali钾basedonU0mDrenenSlVeeValUatlon0lS0iIlertnltVqUaⅡtVDaSed0nfielddataY，angYujian，TOngxueqin，RuanHua．jun簟岱＆TI蜘rmdtionnndEn蛋neer讷gC硎er谚Shdnd

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3、Science．Jin醐25Q、蜘，Chtn由Abstract：Basedonatotalofl04topsoil(0．20cm)saIIlples，combiningwithGridsan∞lin墨themainobiectiveistodevelopmecom口rehensiveevaluationaIldquantitativemodelofsoilf-ertilityqualitv，whichincludedsoilavailablepotassium，soilavailablephosphoms

4、，soilo玛a11icmatter，soilpHvalueandsoilalkalihydl．olysablenitrogen．IntllesnJdy，Nemerowmethodofsoilfertilityquali坶，thestatisticalmethod，sequentialgaussiansimulationandtllespatiallagmodelwereconlpfehensivelyappliedtocI耐母thespatialaSsociationamongtheregiodalvariables．TheresultSofsoi

5、lfenilityquali饵index(SFQI)basedonNemerowmemodindicatedthattherewasthemediumsoilfertilityquaIityint量lewh01e，andthesoilfeniliⅣquali“wasd【etennmedbySOMcontentint11estuCIvarea，tllepositivecorrelationrelationisbetweenSOMcontentandSFQI．Thestudyalsoestablishedthe印atiallagmodel锄ongther

6、egionalva嘲bles；tllespatiallagmodelhasthebettBrsimulationaccuracymancIassicalre毋．essionmodel．LackofsoilavailablephosphomsinJinanci够locatedinxiaoqin曲eriver'mestudyhasimponantpracticalsi印ificaIlce，especiallyphosphomsf-enili哆utilization．Theaniclealsodevel叩edthe2000timessequentialga

7、ussiansimulation(SGS)m叩sofSFQI，whichgenerallyproVidethegradi即tchanges行omSFQIonbasisofsoilpropercyNemerowmethod，theobvioushighvaluearealocatedinthecenterintllezoninRstIldyarea，centeredinthehigllarea，thecontinuedvaluedistributedextending仔ominteriortoexterior’tllereexistedillrelat

8、ivelyobviousdis仃ibutionmodeonthewhole，nosuddenchallgesofSFQIdistribution，whichpromotedtheinforrnationandsci％tificdecision．mabngofsoiltestingrecipes．Keywords：soils，precisiona鲥cultllre，nutriems，sequentialgaussiaIlsimulation，spatiallagmodeldoi：10．3969／j．issn．1002—6819．2012．z2．026C

9、LCnumber：S12Document∞de：AAnicleID：1002—6819f2012)一Supp