马尾松木荷混交林不同改造方式的效果分析  

Effects of Selective Cutting Transformation on Pinus Massoniana and Schima Superba Mixed Forest

作　　者：李清源 张发游 罗春备 孙代珍 魏丽花 Li Qingyuan;Zhang Fayou;Luo Chunbei;Sun Daizhen;Wei Lihua(Fujian Qingliu State-Owned Forest Farm,Qingliu 365300,Fujian,China)

机构地区：[1]福建省清流国有林场,福建清流365300

出　　处：《绿色科技》2024年第21期112-115,129,共5页Journal of Green Science and Technology

基　　金：三明市林业科技项目(编号:2021-MLKJ-18)。

摘　　要：在福建省清流国有林场选择马尾松木荷混交林,于2021年分别实施行带状择伐改造(林下套种闽楠、赤皮青冈、米槠、格氏栲、杉木、红豆杉)和单株择伐改造,于2023年进行林木及其林下植被调查测定。结果表明:2种改造方式均能使木荷和马尾松的胸径和树高生长量得到提升,其中,单株择伐的改造方式更有利于培养大径级高质量林木。行带状择伐后套种以上6种幼树,保存率都在98%以上,经过相同时间的培育,米槠和格氏栲的最大冠幅和树高值最高,说明米槠和格氏栲具有更强的适应力。择伐有助于提高林下植被的多样性,其中行带状择伐后林分的Gleason指数和Margalef指数最高,分别达到4.02和1.57(对照保留带的Gleason指数和Margalef指数分别为2.8和1.34)。In Qingliu State-Owned Forest Farm,Fujian Province,Pinus massoniana and Schima superba mixed forest will be selected for strip selection cutting in 2021(understory vegetation of Phoebe bournei,Quercus gilva Blume,Castanopsis carlesii,Castanopsis kawakamii Hayata,Cunninghamia lanceolata and Taxus wallichiana.var)and individual selection cutting reform,and the forest and its understory vegetation will be investigated and determined in 2023.The results showed that the DBH and tree height growth of Pinus massoniana and Schima superba could be improved by both methods,and the single selection cutting method was more beneficial to the cultivation of large-diameter and high-quality trees.The preservation rate of the above 6 species of saplings was above 98%.After the same time of cultivation,the maximum crown width and tree height of Castanopsis carlesii and Castanopsis kawakamii Hayata Castanopsis were the highest,indicating that Castanopsis carlesii and Castanopsis kawakamii Hayata had stronger adaptability.Selection cutting contributed to increased diversity of understory vegetation.Strip selection cutting resulted in the highest Gleason index and Margalef index of the stand,reaching 4.02 and 1.57 respectively(compared to 2.8 and 1.34 for the control retention belt).

关 键 词：马尾松 木荷 混交林 林分改造 

分 类 号：S567[农业科学—中草药栽培]