伐桩高度对猴耳环人工药材林萌芽更新的影响  

Effects of Stump Height on the Sprouting Regenerati on of Archidendron clypearia Medicinal Plantation

作　　者：闫晶晶 王雪鑫 李梅[3] 金文云 陈祖旭[3] 范春节[3] 黄世能[3] YAN Jingjing;WANG Xuexin;LI Mei;JIN Wen yun;CHEN Zuxu;FAN Chunjie;HUANG Shineng(Xi′an Center of Mineral Resources Survey,China Geological Survey,Xi′an 710100,China,Shanxi;Beijing Haikai holding(group)co.,Ltd,Beijing 100094,China;Key Laboratory of State Forestry and Grassland Administration on Tropical Forestry Research,Research Ins titute of Tropical Forestry,Chinese Academy of Forestry,Guangzhou 510520,Guangdong,China;Guangzhou Ecological Research Co.,Ltd,Guangzhou 510520,Guangdong,China)

机构地区：[1]中国地质调查局西安矿产资源调查中心,陕西西安710100 [2]北京海开控股(集团)股份有限公司,北京100094 [3]中国林业科学研究院热带林业研究所、国家林业和草原局重点实验室,广东广州510520 [4]广州草木蕃环境科技有限公司,广东广州510520

出　　处：《福建林业科技》2024年第2期61-65,共5页Journal of Fujian Forestry Science and Technology

基　　金：广东省林业科技创新项目(2017KJCX004,2011KJCX023);广东省省级科技计划项目(2017A020213002);广州市林业和园林局科技服务项目(穗林园科信合[2016]03号)。

摘　　要：为探究不同伐桩高度对猴耳环人工林萌芽更新与生物量积累的影响,于2016年惠州市惠阳区良井镇前锋村,以480 d的猴耳环人工纯林为研究对象,分别采用30、60、90、120 cm的伐桩高度进行采伐,以去枝留顶和去枝截顶2种方式为对照,分析不同伐桩高度对伐桩萌芽率、存活率、萌条数、萌条生长和生物量等的影响。结果表明:伐桩高度120 cm的萌芽点数和萌条数量最多,伐桩高度90 cm的萌条长度和萌条生物量最大,与对照相比,伐桩高度对萌芽率和存活率没有显著影响,但对萌芽点数、萌条数、萌条基径、长度和生物量影响显著;伐桩的萌条数、基径、长度和生物量均随伐桩高度的增加呈现先增加后减少的趋势。总体而言,4种伐桩高度中,90、120 cm的伐桩在萌条数量、基径、长度和生物量方面萌芽更新效果最好。伐桩高度90~120 cm是猴耳环人工药材林适宜的采伐高度,可获得较大的萌芽林生物量。To study the effects of different stump heights on sprouting regeneration and biomass production of Archidendron clypearia medicinal plantation.Four stump heights of 30,60,90 and 120 cm,plus a treatment of debranching with keeping top shoot and a treatment of debranching with topping as the cross-reference,were employed in the felling experiment for a 480 d plantation of A.clypearia,and the percentages of stumps sprouting and survival,and number,length and biomass of sprouts per stump were determined.The cutting pile height of 120 cm has the largest number of germination points and sprouting shoots,and the cutting pile height of 90 cm has the largest sprouting length and sprouting biomass.Stump heights had no significant effects on the percentages of stumps sprouting and survival,but significantly affected the number of bud emergence points,and number,base diameter,length and biomass of sprouts,which showed a trend of increasing first then decreasing with the increasing stump heights.90 cm and 120 cm stumps showed an optimal yielded in terms of number,diameter,length and biomass of sprouts per stump.90~120 cm of stump heights can be considered as optimal in felling A.clypearia medicinal plantation with the expectation of harvesting a higher biomass production of sprouts.

关 键 词：猴耳环 伐桩高度 萌芽更新 生物量 

分 类 号：S754.3[农业科学—森林经理学]