摘要
为探究密度对贵州油茶主产区产量的影响,对贵州玉屏县茶花泉景区油菜基地进入盛产期的油茶林开展树体生长及产量调查,分析密度对树体生长及产量的影响。结果表明:密度对油茶果实表型性状没有影响,对树体生长和产量影响较大。4个油茶品种中,长林53号表现最好,鲜出籽率和单位面积冠幅产量表现出一定的优势。造林后第10 a,2 m×3 m密度的油茶林的树枝交叉,林分质量和产量开始下降,3 m×4 m密度油茶的油茶林还保留10~30 cm的空隙,林分质量健康;将密度2 m×3 m调整为3 m×4 m后,4个油茶品种的单株单位面积冠幅产量呈现上升趋势。
This study aims to explore the impact of density on the production of Camellia oleifera.The tree growth and yield of Camellia oleifera were investigated to determine the influence of density on the tree growth and yield in the standardized cultivation demonstration base at the Yuping County,Tongren City,Guizhou Province,China.The results showed that a great effect was achieved in the growth and yield of the tree.But there was no effect of the density on the phenotypic characters of fruit.Changlin 53 showed the best performance among the four varieties,in terms of the fresh seed rate and yield per unit crown width.Furthermore,the branches of the 2 m×3 m were crossed to form the more shaded in the 10th year after afforestation.The quality and yield of the stand began to decline,while the gap of 10-30 cm remained in the 3m×4m camellia forest,indicating the outstandingly healthy stand quality.An ever increasing trend was found in the crown yield per unit area of four camellia varieties,after the density of 2 m×3 m was adjusted to 3 m×4 m.
作者
李芳
杨波
刘海保
魏莹莹
许杰
LI Fang;YANG Bo;LIU Haibao;WEI Yingying;XU Jie(Guizhou Academy of Forestry,Guiyang 550005,China;Guizhou Qianyu Oil Tea Development Co.,Ltd.,Yuping,554000,China)
出处
《贵州林业科技》
2023年第2期55-59,共5页
Guizhou Forestry Science and Technology
基金
贵州油茶主产区栽培适宜密度调查研究(黔林科合J字[2019]01号)
长林系列油茶良种在贵州的适应性评价及筛选(黔林科合J字[2022]02号)
贵州高原山地威宁短柱油茶优良无性系选育(黔科合支撑[2020]1Y061号)
贵州本地油茶良种选育(特林研2020-15)
油茶果皮厚度控制分子机理研究(黔科合平台人才[2019]5643)。
关键词
油茶
密度
产量
Camellia oleifera
density
yield
作者简介
第一作者:李芳(1991-),女,硕士,工程师,主要从事森林经理及森林培育工作。E-mail:291989555@qq.com;通信作者:许杰(1973-),男,硕士,正高级工程师,从事经济林育种与栽培相关研究。E-mail:404715698@qq.com。
