凹葉厚樸人工林林木生長規(guī)律和生態(tài)系統(tǒng)生產(chǎn)力的研究.pdf

1、福建農(nóng)林大學(xué)碩士學(xué)位論文凹葉厚樸人工林林木生長規(guī)律和生態(tài)系統(tǒng)生產(chǎn)力的研究姓名：馬華明申請學(xué)位級別：碩士專業(yè)：森林培育指導(dǎo)教師：林錦儀2002.5.1凹葉厚樸人工林林木生長規(guī)律和生態(tài)系統(tǒng)生產(chǎn)力的研究關(guān)冀詞：凹葉厚樸；生長規(guī)律；生態(tài)系統(tǒng)；生產(chǎn)力；營養(yǎng)元素；生物循環(huán)主題詞：生長規(guī)律；生產(chǎn)力中圈分類號：s75935ASTUDYoNECoSYSTEMPRODUCTIⅥTYANDTREEGROWINGRULESOF^糾G眥五4丑旺(≯Z“PLANT

2、ATIONSTANDAbstractMagnoliabilobaisfamousChinesetraditionalmedicineithasclosegrainedandbeautifultimberThepaperbasedonexperimentsof18一oldyearMagnoliabilobainHu—fangCountryAserialofexperimentsopenedout：(1)rulesofaerialpartg

3、rowth；(2)rulesofundergroundpartgrowth；(3)correlationbetweenaerialpartandundergroundpart；(4)rulesofskinningandregeneration；(5)DistributionofhiomassinMagnoliabilobaplantation；(6)productivityofthestand；(7)distributionofleav

4、eareaindex；(8)netassimilationrateofleaves；(8)biologycycleofnutrimentelementinecosystemThemaincontentofthestudylistasfollows：1)Inthestudies，thegrowthpattemsofmagnoBabilobaplantationsandforestecosystemweresystematicallystu

5、died，thecharacteristicgrowthofMagnoliabilobawastold，fastgrowingstageandvariousgrowthmodelsofthecultivatedpopulationswereestablishedbythemethodofcorrelationanalysis2)Studyonrootsystemshowed：inevidentaxialroot，developedaxi

6、llaryroot；915mainaxillaryroot，hereinto912horizontalrootsystem，啦3verticalones；over90％ofrootsystemdistributedwithin040cmsoiIhorizonRootsystemgrowthhadevidentfertiliertaxisandaerotaxis；aerialpartshadevidentrelativeswithunde

7、rgroundparts3)Experimentcarriedoutonskinningposition，skinningtimeandstandclosureTheresultshowedthatstandclosureisamostimportantfactorforskinningtechniquesofMagnoliabilobaandoptimalskinningpatternisskinning95～135cminheigh

8、tclosestandandinMay～JuneObservationsanddeterminationofMagnoliabilobaoriginalskinandregenerativeskinresultedthatifskinningtechniquesofMagnoliabilobaweremastered，regenerativebarkwouldreachthechicknessoforiginalone2～3yearsa

9、fterskinningandmedicinalcomponentofregenerativebarkwouldnealythesameasoriginalonesTheextensionofthesetechniqueswouldbeimportantforprotectingMagnoliabilobaresoumes，increasingeconomicandecologicalbenefitintheproductionarea

10、4、Studyonthesurveysof也erelationsbetweenvariousorgansandfactorsofMagnoliabilobaareobtainedbythemethodofcorrelationanalysisThemathematicalmodelsforeveryorganhavebeenestablishedbyapplyingthemodelsofY=aD。andY=aDoH。whichcould