根构型模拟模型及其应用

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1、维普资讯http://www.cqvip.com第18卷第3期农业工程学报Vo1．i8No．31542002年5月TransactLonsOftheCSAEMav2002SimulationModelsofPlantRootSystemArchitectureandApplication：AReviewGeZhenyang，YanXiaolong。，LuoXiwen(1．FacultyofModernAgricultura1]Engineering．KunmingUniversityofScience

2、andTechnologyKunming650224，China；2．SouthChinaAgriculturalOnvershy，Guangzhou510642·China)Abstract：Quantificationofrootsystemarchitectureisessentialfordeterminingnutrientuptakebyplantroots．Growinglnopaquesoils．rootsaredifficulttoobserveandinterpret．Thisma

3、kessimulationmodelinganattractivecomplememaryapproachInthispaper，rootarchitecturemodets~,erereviewedandmethodsforconstructinggeometricmodetswereintroduced．SIMROO7’，aDimportammodelforrootarchitecture㈣sdescribedasrelatedtonutrientacquisitionByemployingExt

4、ensibleTreedatastructureimplementedonaSG1computer，thismode】providesvividgraphicalvisualiaationofrootgrowing．Furthermore，themodelCaDbedevelopedtoevaluateuptakeofdifusivenutrientsbyplanls．Theapplicationo{thesemodelsintroducedModifications0fthemode1tosimul

5、atecompetitionfornutr[entuptakeⅥitbinandbet~Areenroots~,erea【sodiscussedKeywords：sirnu【ationmodel：rootarchitecture{datastructure：diffusivenuttientcompetitionCLCnumber：SjDocumentcode：AAritcleID：1002—6819(2002)03—015407Rootarchitecture．definedastheexplici

6、tmodelertodeftnerelevantprocessandinteraction，spatialconfigurationofarootsysten1．determinesandinsuggestingissuesandhypothesesfortheavailabilityofplanttocaptureandtransportexperimentation-．sotlwaterandnutritionresources～一．ThePioneeringresearchersinnumeri

7、calimportanceofrootarchitectureinplantsimulationsofrootsystenlsusedempiricalgrowthproductivitystenl8fromthefactthatmanysoilratesandbranchingparameterstosimulatetheresourcesareunevenlydistributed．hencethegrowthofasinglerootaxisandsecondorderspatialdeploy

8、mentoftherootsystemdeterminesbranchesintwodimension．Cropmodelssuchtheabilityofaplanttoexploitthoseresources．asCERESwheat[，CERESmaize：．andRootarchitectureisafundamentalaspectofplantS()YGR0，PNUTGR0．BEANGRo：⋯]consideredproductivity，