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INTRODUCTIONThcstcmfonl1ofnaturalKorcanpincforcst.ot\ingtothcsupprcsscdandshadcd,isvcry'difTcrcntt`iththatofplantation.Itis\'cry't'aluabIctostud}'thcstcmfonnforn1orcac-knot`lcdgcabouttl1ctrccd)-nan1icsofnaturalKorcanpinc.n1crcl1asbccnconsidcrabIcrescarchontl1cstc111for111cquationsasatoolforforcstmanagcmcnt,butitalmostbasnorclationshipt`-iththcbiologicalgrowthproccss.soitisx'ery'dimcuIttouscthccquationtoanalxrsisthcd\'amicsofstclllform.Hcrcthcdct'clopmcntofstcmformt"ascxPCctcdfornotonI\… 相似文献
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INTRODUCTION'Inforn1ahonondvnan1icsofthefoel1oadslslmPOrtantt0bothl1lanagersandresearchersofecologicaleffectsoffire.Theal11ountoffuelconsullledbyfireandthesubsequentpat-ten1ofre-acculnulationoffilel1sln1POrtantf(I)illdeterl11inah0nofthefilelquanhtyftlelpresentatanyh1ne,asweIlasthesteady-stateweightofaccumtIlatedresidues;(2)inpredichngenenyrelease,il1tensityandspreadrateforfirebehaviorforecastandsuppression;(3)illassessingtheeffechvenessofpre-scribedburni11gforftlellnanageme11t,(4)indete… 相似文献
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INTRoDUCTIoNBroad-lcavedKoreanpincforcstisthczonalclimaxecosystcminnortl1castmountainsofChina.Itisknot"nasdivcrscsPCCicsandsPCcialindicatorinthcnortl1cmtcmPCratcforcstty'PCsofthccarth.Bccauscthiski11dofforcstllashighproductivityandlargcasscss-ment,andiscomPoscdoflnany'\1aluabIccoIl1-mercialtI-eesPCcicssucl1asI,inuskoraicnsi3,Fraxinusman'I3huricactc.IthasbecncutoverinIargcarcasduringtl1clastscveraldcc-adcsandtl1coldforcstI1asbccndamagcdscri-ousIy.Noxt'n1ostoftl1cml1a\'cbcenreplacc… 相似文献
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<正>新时期市场环境下,传统经销商面临两大难题,一是伴随着信息化和物流业的高速发展,许多企业在市场竞争中日益加剧、渠道费用居高不下、终端扣点及人员费用越来越高的情况下,有些企业就开始思考抛开渠道经销商直供或自建终端,或是思考减少经销商的层级而淘汰部分经销商,如日化行业、家电行业、建材行业、茶叶 相似文献
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