樟树、黄樟和油樟矮林生长差异性比较  

Growth Difference of Cinnamomum camphora,Cinnamomum porrectum and Cinnamomum longepaniculatum Dwarf Forest

作　　者：丁颖 李鸿程 顾祎昕 肖祖飞 魏希 DING Ying;LI Hongcheng;GU Yixin;XIAO Zufei;WEI Xi(Jiangxi Porvincial Engineering Reseach Center of Seed-breeding and Utilization of Camphor Trees,Nanchang Institute of Technology,Nanchang,Jiangxi 330099,China)

机构地区：[1]南昌工程学院江西省樟树繁育与开发利用工程研究中心,江西南昌330099

出　　处：《宜宾学院学报》2024年第12期69-72,103,共5页Journal of Yibin University

基　　金：江西省林业局林业科技创新专项项目(201904);江西省林业局樟树研究专项项目(202007);江西省科学技术厅重大科技研发专项项目(20203ABC28W016)。

摘　　要：为樟树、黄樟和油樟的矮林作业提供依据,对其矮林萌芽数、萌条长度、萌条粗度、生物量及其分配的差异进行比较分析.结果发现:樟树、黄樟和油樟矮林留桩上的萌芽数和萌条数差异不显著.樟树矮林萌条最大长度(134.11 cm)显著长于黄樟(114.72 cm)和油樟(108.38 cm),樟树矮林萌条粗度(19.82 mm)大于黄樟(17.22 mm),显著大于油樟(15.24 mm).樟树矮林单株鲜重、单株叶鲜重、单株小枝鲜重和单株主枝鲜重显著高于黄樟和油樟,黄樟和油樟之间差异不显著.樟树矮林叶/小枝、叶/主枝、叶/枝和(叶+小枝)/主枝小于黄樟和油樟,其中樟树矮林叶/枝显著小于黄樟和油樟,黄樟叶/枝显著小于油樟矮林,且叶/枝随单株鲜重的增加而显著减小.In order to provide the basis for the dwarf forest operation of C.camphora,C.porrectum and C.longepaniculatum,the differences of sprouting number,sprouting length,sprouting thickness,biomass and its distribution were compared and analyzed.The results show that there is no significant difference in the number of sprouts and sprouts on the stumps of the three dwarf forests.The maximum length of sprouts in C.camphora dwarf forest(134.11 cm)is significantly longer than that in C.porrectum(114.72 cm)and C.longepaniculatum(108.38 cm).The thickness of sprouts in C.camphora dwarf forest(19.82 mm)is greater than that in C.porrectum(17.22 mm)and significantly greater than that in C.longepaniculatum(15.24 mm).The fresh weight per plant,leaf fresh weight per plant,twig fresh weight per plant and main branch fresh weight per plant of C.camphora dwarf forest are significantly higher than those of C.porrectum and C.longepaniculatum,and there is no significant difference between C.porrectum and C.longepaniculatum.The leaf/branch,leaf/main branch,leaf/branch and(leaf+branchlet)/main branch of C.camphora dwarf forest are smaller than those of C.porrectum and C.longepaniculatum.The leaf/branch of C.camphora dwarf forest is significantly smaller than that of C.porrectum and C.longepaniculatum,and the leaf/branch of C.porrectum is significantly smaller than that of C.longepaniculatum dwarf forest,and the leaf/branch decreases significantly with the increase of fresh weight per plant.

关 键 词：樟树 黄樟 油樟 矮林 生物量 

分 类 号：S792.23[农业科学—林木遗传育种]