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1、西北林學(xué)院學(xué)報(bào)2014,29(2):184~190JournalofNorthwestForestryUniversitydoi:10.3969/j.issn.1001—7461.2014.02.33遼東山區(qū)長(zhǎng)白落葉松人工林生長(zhǎng)規(guī)律的研究何遠(yuǎn)洋,段劫,魏永忠。,馬履一,賈黎明,賈忠奎,蘇小琚,周強(qiáng)。,張?jiān)平?。?1.北京林業(yè)大學(xué)林學(xué)院,北京100083;2.北京林業(yè)大學(xué)國(guó)家能源非糧生物質(zhì)原料研發(fā)中心,北京100083;3.遼寧省實(shí)驗(yàn)林場(chǎng),遼寧清原113311)摘要:以遼東山區(qū)長(zhǎng)白落葉松為研究對(duì)象,通過(guò)解析44株不同林齡的長(zhǎng)白落葉松,建立起胸徑、樹(shù)高和材積
2、生長(zhǎng)模型,并對(duì)其生長(zhǎng)過(guò)程進(jìn)行分析研究。結(jié)果表明:采用Korf方程擬合遼東山區(qū)長(zhǎng)白落葉松胸徑、樹(shù)高和材積生長(zhǎng)模型效果最好,R2值分別為0.956、0.956和0.937,3個(gè)方程都能很好地反映其生長(zhǎng)規(guī)律,能夠用于遼東山區(qū)長(zhǎng)白落葉松人工林生長(zhǎng)過(guò)程的預(yù)測(cè)。長(zhǎng)白落葉松胸徑連年生長(zhǎng)量的最大值出現(xiàn)在第7年,平均生長(zhǎng)量的最大值出現(xiàn)在第16年,連年生長(zhǎng)量與平均生長(zhǎng)量相交時(shí)間出現(xiàn)在17~20a;樹(shù)高連年生長(zhǎng)量最大值出現(xiàn)在第6年,平均生長(zhǎng)量最大值出現(xiàn)在第13年,連年生長(zhǎng)量與平均生長(zhǎng)量相交的時(shí)間在12-14a。長(zhǎng)白落葉松在生長(zhǎng)初期材積增長(zhǎng)緩慢,30a以后材積生長(zhǎng)速度較快,但是
3、直到56a時(shí),也沒(méi)有達(dá)到數(shù)量成熟林,說(shuō)明長(zhǎng)白落葉松材積生長(zhǎng)較慢。此外,根據(jù)長(zhǎng)白落葉松的生長(zhǎng)過(guò)程提出了其不同生長(zhǎng)時(shí)期應(yīng)該采取的主要經(jīng)營(yíng)管理措施。關(guān)鍵詞:遼東山區(qū);長(zhǎng)白落葉松人工林;生長(zhǎng)模型;生長(zhǎng)過(guò)程中圖分類(lèi)號(hào):$791.220.6文獻(xiàn)標(biāo)志碼:A文章編號(hào):1001—7461(2014)一02—0184—07GrowthRegularityofLarixolgensisPlantationinMountainousRegionsofEasternLiaoningProvince,ChinaHEYuan—yang,DUANJie,WEIYong-zhong。,M
4、ALYu—yi’,JIALi·ming,JIAZhong—kui,SUXiao-jun,ZHoUQiang。,ZHANGYun-jiang。(1.AcademyofForestry,BeijingForestryUniversity,Beijing100083,China;2.NationalEnergyR&DCenterforNon—foodBiomass,BeijingForestryUniversity,Beijing100083,China3.ExperimentalForestFarmofLiaoningProvince,Qingyuan,Li
5、aoning113311,China)Abstract:InordertofindoutthegrowthregularityofLarixolgensisplantationsinmountainousregionsofeasternLiaoningProvince,China,44analytictreeswithdifferentageswereselectedtostudythegrowingprocessbystemanalysis.Modelsofthegrowthofdiameteratbreastheight(DBH),height(H)
6、,andvol—ume(V)wereestablished.TheresultsshowedthattheKorfmode1wastheoptimumoneforthedescrip—tionofgrowthprocessofDBH,H,andV.Moreover,threegrowthmodesdisplayedgoodpredictionaCCU—racy,andwiththevaluesofpredictionaccuracyof0.956,0.956,and0.937,respectively.Thegrowthmodelscouldfitthe
7、growthprocessprecisely.ThemaximumofcurrentannualincrementofDBHwasat6—10a,themaximumofaveragegrowthat16—2Oa,thetwocurvesintersectedat14—18a;thepeakofcurrentannualincrementofHat6—11a。thepeakofaveragegrowthat10—13a,thecurrentannualin—crementintersectwiththeaveragegrowthattheageof10—
8、17.Attheearlyage,L.olgensisstartstogrows