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OALib Journal期刊
ISSN: 2333-9721
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杉木人工林不同根序的一级根形态差异及其对间伐的响应
DOI: 10.3969/j.issn.1000-2006.2014.04.013, PP. 69-74
Keywords: 一级根形态,比根长,根序,间伐强度,杉木人工林
Abstract:
以江苏南京溧水林场实施了4种间伐强度(ck(不间伐)、弱度间伐(lit,比例30%)、中度间伐(mit,比例50%)、强度间伐(hit,比例70%))的25年生杉木人工林为研究对象,探讨了不同根序上一级根直径、根长和比根长的差异及间伐(6年)对其生长的影响。将一级根按着生位置的不同分为4类:ar(2级根上的一级根)、br(3级根上的一级根)、cr(4级根上的一级根)、dr(5级根上的一级根)。结果表明:杉木人工林不同根序上一级根数量和根长存在显著差异(p<0.05),而直径和比根长无显著差异(p>0.05)。随着一级根着生根序的增加,一级根数量极显著减小(p<0.01),所占总根数比例从大到小为ar(79%)>br(13%)>cr(6%)>dr(2%);dr类根的根长显著大于其余3类根的根长(p<0.05)。与对照相比,间伐仅对br类根的直径及dr类根的直径和根长有显著影响(p<0.05)。其中,br类根的直径在lit和hit中显著减小;dr类根的直径在mit中显著增大,而根长却在lit中显著减小。相关分析表明,土壤表层(0～10cm)林下非目的树种活细根生物量、土壤亚表层(≥10～20cm)全氮分别与br类、dr类根的直径呈显著的负相关关系,土壤表层(0～10cm)的全氮则与dr类根的根长呈显著正相关关系。
| [1] | majdih,damme,nylundje.longevityofmycorrhizalrootsdependsonbranchingorderandnutrientavailability[j].newphytol,2001,150(1):195-202.
|
| [2] | walkermd,walkerda,welkerjm,etal.long-termexperimentalmanipulationofwintersnowregimeandsummertemperatureinarcticandalpinetundra[j].hydrolprocess,1999,13(1415):2315-2330.
|
| [3] | drennanpm,nobelps.rootgrowthdependenceonsoiltemperatureforopuntiaficus？indica:influencesofairtemperatureandadoubledco2concentration[j].functecol,1998,12(6):959-964.
|
| [4] | 李彩霞,孙景生,周新国,等.隔沟交替灌溉条件下玉米根系形态性状及结构分布[j].生态学报,2011,31(14):3956-3963.licx,sunjs,zhouxg,etal.rootmorphologycharacteristicsunderalternatefurrowirrigation[j].actaecologicasinica,2011,31(14):3956-3963.
|
| [5] | 孙？,全先奎,贾淑霞,等.施用氮肥对落叶松人工林一级根外生菌根侵染及形态的影响[j].应用生态学报,2007,18(8):1727-1732.suny,quanxk,jiasx,etal.effectsofnitrogenfertilizationonectomycorrhizalinfectionoffirstorderrootsandrootmorphologyoflarixgmeliniiplantation[j].chinesejournalofappliedecology,2007,18(8):1727-1732.
|
| [6] | 李瑞霞,凌宁,郝俊鹏,等.林龄对侧柏人工林碳储量以及细根形态和生物量的影响[j].南京林业大学学报:自然科学版,2013,37(2):21-27.lirx,lingn,haojp,etal.effectsofstandagesoncarbonstorage,finerootmorphologyandbiomassinplatycladusorientalisplantation[j].journalofnanjingforestryuniversity:naturesciencesedition,2013,37(2):21-27.
|
| [7] | 王向荣,谷加存,梅莉,等.水曲柳和落叶松细根形态及母根与子根比例关系[j].生态学报,2006,26(6):1686-1692.wangxr,gujc,meil,etal.finerootordermorphologyandproportionbetweenmotherrootsanddaughterrootsinfraxinusmandshuricaandlarixgmelinii[j].actaecologicasinica,2006,26(6):1686-1692.
|
| [8] | guodl,mitchellrj,withingtonjm,etal.endogenousandexogenouscontrolsofrootlifespan,mortalityandnitrogenfluxinalongleafpineforest:rootbranchorderpredominates[j].jecol,2008,96(4):737-745.
|
| [9] | pregitzerks,deforestjl,burtonaj,etal.finerootarchitectureofninenorthamericantrees[j].ecolmonogr,2002,72(2):293-309.
|
| [10] | 宋森,谷加存,全先奎,等.水曲柳和兴安落叶松人工林细根分解研究[j].植物生态学报,2008,32(6):1227-1237.songs,gujc,quanxk,etal.finerootdecompositionoffraxinusmandshuricaandlarixgmeliniiplantations[j].chinesejournalofplantecology,2008,32(6):1227-1237.
|
| [11] | 刘颖,谷加存,卫星,等.树木不同根序上一级根的形态、解剖结构和氮含量[j].植物生态学报,2010,34(11):1336-1343.liuy,gujc,weix,etal.variationsofmorphology,anatomicalstructureandnitrogencontentamongfirst-orderrootsindifferentpositionsalongbranchordersintreespecies[j].chinesejournalofplantecology,2010,34(11):1336-1343.
|
| [12] | lópezb,sabatés,graciac.finerootsdynamicsinamediterraneanforest:effectsofdroughtandstemdensity[j].treephysiol,1998,18(8-9):601-606.
|
| [13] | noguchik,hanqm,arakimg,etal.fine-rootdynamicsinayounghinokicypress(chamaecyparisobtusa)standfor3yearsfollowingthinning[j].journalofforestresearch,2011,16(4):284-291.
|
| [14] | dightonj,helmisaarihs,maghirangm,etal.impactsofforestpostthinningresiduesonsoilchemistry,faunaandroots:implicationsofresidueremovalinfinland[j].applsoilecol,2012,60:16-22.
|
| [15] | demirandamsl,demoraesgjl,gavajl.pre-andpost-harvestfinerootgrowthineucalyptusgrandisstandsinstalledinsandyandloamysoils[j].forestecolmanag,2007,246(2-3):186-195.
|
| [16] | wangzq,guodl,wangxr,etal.finerootarchitecture,morphology,andbiomassofdifferentbranchordersoftwochinesetemperatetreespecies[j].plantsoil,2006,288(1-2):155-171.
|
| [17] | 刘佳,项文化,徐晓,等.湖南会同5个亚热带树种的细根构型及功能特征分析[j].植物生态学报,2010,34(8):938-945.liuj,xiangwh,xux,etal.analysisofarchitectureandfunctionsoffinerootsoffivesubtropicaltreespeciesinhuitong,hunanprovince,china[j].chinesejournalofplantecology,2010,34(8):938-945.
|
| [18] | 潘瑞炽.植物生理学[m].北京,高等教育出版社,2001.
|
| [19] | 王祖华,李瑞霞,郝俊鹏,等.间伐对杉木人工林不同根序细根形态的影响[j].东北林业大学学报,2011,39(6):13-15,19.wangzh,lirx,haojp,etal.effectsofthinningonfinerootmorphologyinchinesefirplantations[j].journalofnortheastforestryuniversity,2011,39(6):13-15,19.
|
| [20] | curtt,colll,prévostob,etal.plasticityingrowth,biomassallocationandrootmorphologyinbeechseedlingsasinducedbyirradianceandherbaceouscompetition[j].annforestsci,2005,62(1):51-60.
|
| [21] | fujiis,kasuyan.finerootbiomassandmorphologyofpinusdensifloraundercompetitivestressbychamaecyparisobtusa[j].journalofforestresearch,2008,13(3):185-189.
|
| [22] | 王祖华,李瑞霞,王晓杰,等.间伐对杉木人工林林下植被多样性及生物量的影响[j].生态环境学报,2010,19(12):2778-2782.wangzh,lirx,wangxj,etal.effectsofthinningonbiomassandspeciesdiversityofunderstoryinchinesefirplantations[j].chinesejournalofecologyandenvironmentalsciences,2010,19(12):2778-2782.
|
| [23] | krasowskimj,owensjn.tracheidsinwhitespruceseedling’slonglateralrootsinresponsetonitrogenavailability[j].plantandsoil,1999,217(1-2):215-228.
|
| [24] | huangg,zhaoxy,zhaohl,etal.linkingrootmorphology,longevityandfunctiontorootbranchorder:acasestudyinthreeshrubs[j].plantsoil,2010,336(1-2):197-208.
|
| [25] | domischt,finérl,lehtot.effectsofsoiltemperatureonbiomassandcarbohydrateallocationinscotspine(pinussylvestris)seedlingsatthebeginningofthegrowingseason[j].treephysiol,2001,21(7):465-472.
|
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