抚育方式对林下浙江红花油茶生长及果实性状的影响  

Effects of TendingMethods on the Growth and Fruit Characters of Camellia chekiangoleosa under the Forest

作　　者：阮学瑞 RUAN Xuerui

机构地区：[1]宁德市林业科研与技术推广中心,福建宁德352100

出　　处：《林业科技通讯》2022年第9期47-50,共4页Forest Science and Technology

基　　金：自然生物资源保育利用福建省高校工程技术研究中心开放课题资助;2022年中央财政林业科技推广项目(闽﹝2022﹞TG08号);2022年福建省林业科技计划项目(FJLKJ2022)。

摘　　要：为筛选适宜林下浙江红花油茶(Camellia chekiangoleosa)低产林生产的改造方案,以天然林籽播形成的低产林为研究对象,通过透光伐、透光伐+截干2种处理对霞浦县八斗丘试验地进行改造,研究改造后的林木生长及结实状况。结果表明,透光伐和透光伐+截干均能促进浙江红花油茶生长及提高果实产量。其中,透光伐处理对树高和冠幅增长影响显著,分别比CK高0.13m和22.86cm;透光伐产量最高,为5631kg/hm^(2),是透光伐+截干处理的2倍;透光伐+截干处理的鲜果出籽率及含油率最高,分别为25.1%、57.6%。综合比较发现透光伐改造效果优于透光伐+截干抚育方案。在浙江红花油茶低产林改造中,宜采用全伐非红花油茶树种的改造方案,为林下较弱小的红花油茶树提供更适宜的生长环境,慎用截干回缩的方法。In order to select the transformation scheme suitable for the production of low yield Camellia chekiangoleosa,taking the low-yield forest formed by seed sowing of natural forest as the research object,the experimental plot of Badou-qiu in Xiapu county was transformed by release cutting and release cutting+cutting trunk,and the growth and seed set-ting of the transformed forest were studied.The results showed that both release cutting and release cutting+cutting trunk could promote the growth and increase the fruit yield of C.chekiangoleosa.Release cutting had a significant effect on the growth of tree height and crown width,which were 0.13mand 22.86cm higher than CK,respectively.The yield of release cutting was the highest,5631kg/hm^(2),which was twice that of release cutting+cutting trunk treatment.The seed yield and oil content of fresh fruit treated with release cutting+cutting trunk were the highest,25.1%and 57.6%respectively.Through comparison,it is found that the transformation effect of release cutting is better than that of re-lease cutting+cutting trunk.In the transformation of seed sowing low yield forest under C.chekiangoleosaforest,the transformation scheme of full cutting non C.chekiangoleosa miscellaneous irrigation should be adopted to provide a more suitable growth environment for the weaker C.chekiangoleosa trees under the forest,and the method of stem cutting and retraction should be used with caution.

关 键 词：浙江红花油茶 Camellia chekiangoleosa 天然林 透光抚育 低产 生产性状 

分 类 号：S794.4[农业科学—林木遗传育种] S753[农业科学—林学]