主要針葉樹容器育苗造林技術(shù)研究.pdf

1、、1029008分類號(hào)：S3324UDC：3Q鐐級(jí)：畫近異學(xué)校代碼：10712研究生學(xué)號(hào)：TG2003140西北農(nóng)林前提大學(xué)2006屆攻讀碩士學(xué)位研究生學(xué)位(畢業(yè))論文主要針葉樹容器育苗造林技術(shù)研究類型：盔些推亡領(lǐng)域、專業(yè)、方向：撻業(yè)研究生：揚(yáng)瞪齷指導(dǎo)教師：鰒恩賢訝究雖完成時(shí)間：2巡笙!!目中國(guó)陜西楊凌STUDIESONCONTAINERSEEDLINGPRODUCTIONANDAFFORESTATIONTECHNIQUESOFCONI

2、FERTREESPECIESABSTRACTIncombinationwiththeimplementationoftheNationalLandConversionProgramthestudiesoncontainerseedlingproductionandafforestationtechniquesofconifertreespeciesweresystematicallyconductedandhaveachievedthe

3、followingresults：11Studyondifferentdimensionedcontainers：throughcomprehensiveanalysisandevaluationofmorphologicalindex，biomassindexandeconomicsofseedlingsfrom9differentdimensionedcontainers，itwasfoundthatthecontainerof4x

4、14cmdimensionisthemostsuitablesizeforproducingPinustabulaeformiscontainerseedlings2、Studyondifferentthicknesscontainers：basedontheanalysisofeachindexofseedlingproductionofdifferentthicknesscontaineritWaSfoundthatrootcoll

5、ardiameterofseedlingsfrom003mmthickcontainerwasmuchsignificantlybiggerthanthoseofseedlingsfrom0015mmthickcontainerandWassignificantlybiggerthanthoseofO02mmthickcontainerItisrecommendedtoUSepelythenecontainerwimO03mmthick

6、nesstoproducecontainerseedlingsThistypeofcontaineralsohasadvantagesthatsoilmediumiseasilyfilledintocontainerthussavinglaborinputandthecontainerismoreendurableduringitstransportation31Studyondifferenttypesofcontainers：the

7、containerbag、^，itllbottomhelpsrootdevelopmentincreaseofrootnumberandformationofrootball，andalsoproducesbetterqualityofseedlingsComparedwithbottomlesscontainerbagcontainerbag、析mbottomhasadvantagesthatsoilmediumiseasilyfil

8、ledinandrootballstandsmorestableduringitsliftingandtransportationhelpingprotectionofseedlingsystem療o(wú)mmechanicalinjurywhichmayotherwisedecreaseseedlingqualityPunchedcontainerbaghelpsairventilationwaterpenetrationtemperatu

9、reregulationandincreasingrootingrateofseedlingrootandrootsystemdevelopmentaswellContainerbagshouldbebottompunched41Studyonsoilmediumofcontainer：studyof8differentsoilmediumcompositionsshowstheoptimalsoilmediumcompositionf

10、orPinustabulaeformiscontainerseedlingproductioninWeibeiDrylandBeltofShaanxiProvinceisacidsoilwithpH=63，whichconsistsof40％oftopsoil，15％ofloesssoil，20％ofhumussoilonforestfloor20％ofdecomposedmanureand5％ofstoveashwithneutral