不同坡位3年生岗梅根系分布及年生长规律  

Root Distribution and Annual Growth pattern of Three-year-old Llex asprella Under Different Slope Popisions

作　　者：曾淑燕 陈佛传 简耀彩 张冬生 叶雪兰 王德州 黄添荣 ZENG Shuyan;CHEN Fuchuan;JIAN Yaocai;ZHANG Dongsheng;YE Xuelan;WANG Dezhou;HUAN G Tianrong(Forestry Research Institute of Meizhou Academy of Agric ultural and Forestry Sciences,Meizhou 514011,Guangdong,China;Guangdong Engineering Technology Research Center(Meizho u)for the Development and Use of the Forest Characteristic Resources,Meizhou 514011,Guangdong,China;Guangdong Xingyuan Agriculture and Forestry limitedcompany,Meizhou 514427,Guangdong,China;Jiaoling Co unty state-owned Forest Farm of Huang You Bi(Municipal Nature Reserve of Huang You Bi),Jiaoling 514178,Guang dong,China)

机构地区：[1]梅州市农林科学院林业研究所,广东梅州514011 [2]广东省林下特色资源(梅州)开发应用工程技术研究中心,广东梅州514011 [3]广东兴源农林有限公司,广东梅州514427 [4]蕉岭县国有皇佑笔林场(皇佑笔市级自然保护区),广东蕉岭514178

出　　处：《福建林业科技》2023年第4期77-83,共7页Journal of Fujian Forestry Science and Technology

基　　金：广东省林业科技创新项目(油茶林下套种珍贵中药材的关键技术研究与示范,2018KJCX050);广东省地方标准项目(岗梅栽培技术规程,2019-DB-06)。

摘　　要：为研究不同坡位及不同土层深度岗梅根系的生长分布特征,于2021年3月—2022年2月,在梅州市平远县热柘镇热柘村3年生的岗梅林中,对不同坡位及不同土层深度的岗梅根数、根长、根粗进行调查与分析。结果表明,岗梅根数在不同坡位间没有显著差异,在不同土层深度间存在显著差异;岗梅根长和根粗在不同坡位间均无显著差异。岗梅根长和根粗的3 a生长量均具有1次明显的高峰增长特点和二次曲线的生长规律。综合结果表明,在赤红壤条件下种植岗梅,其根系分布及根长和根粗均不受坡位影响,岗梅可在山坡任何坡位种植。To investigate the growth and distribution characteristics of root systems of Ilex asprella seeding under different slope popisions and soil depths,a survey and analysis were conducted from March 2021 to February 2022 in a thr ee-year-old Ilex asprella forest in Rezhe Village,Rezhe Town,Pingyuan County,Meizhou City.The survey focused on the number of roots,root length,and root thickness at different slope positions and soil depths.The results showed that there was no significant difference in the number of roots between different sl ope positions,but there was a significant difference among different soil depths.There was no significant difference in root length and thickness among different slope positions.The growth of root length and thickness of three-year-old Ilex asprella seedings exhibited a characteristic of a single peak growth and f ollowed a quadratic growth pattern.Overall,the results indicate that under red soil conditions,the distribution of the root system,as well as the root leng th and thickness of Ilex asprella seedings,are not affected by slope positions.Therefore,Ilex asprella seeding can be planted at any slope position on the mountain.

关 键 词：岗梅 根系 坡位 土层深度 生长特征 

分 类 号：S718.511[农业科学—林学]