不同技术措施对马尾松低质低效林改造效果的影响  

The Influence of Different Technical Measures on the Transformation Effect of Low-quality and Low-efficiency Forests of Pinus massoniana

作　　者：傅成杰 高伟 巫智斌 廖建国[1,2] 邹俊强 Fu Chengjie l;Gao Wei;Wu Zhibin;Liao Jianguo;Zou JunQiang(Fujian Forestry Vocational and Technology College,Nanping 353000,Fujian;Forest Ecology and Carbon Sink Research Institute,Nanping 353000,Fujian;The Forestry Bureau of Changting,Longyan 364000,Fujian)

机构地区：[1]福建林业职业技术学院,福建南平353000 [2]森林生态与碳汇研究所,福建南平353000 [3]长汀县林业局,福建龙岩364000

出　　处：《防护林科技》2022年第6期41-43,53,共4页Protection Forest Science and Technology

基　　金：南平市自然科学基金项目(N2021J014)。

摘　　要：为探明低效马尾松(Pinus massoniana)林改造中的套种树种筛选、林分郁闭度调整、间伐强度控制等技术问题,达到优化林分树种结构、提升林分质量、丰富生物多样性、稳定植物群落的目标,选择福建省长汀县的马尾松低质低效林进行了间伐、套种、郁闭度调控等改造,分析了8年后不同改造模式的效果。结果表明:(1)在郁闭度为0.4~0.6的马尾松林下套种阔叶树红叶石楠(Photinia×fraseri)和山杜英(Elaeocarpus sylvestris)对马尾松树高生长均具有明显促进作用,套种山杜英对胸径促进作用明显,总体以套种山杜英效果最好,而郁闭度超过0.6之后,林下套种阔叶树种加剧了种间竞争,导致马尾松的生长量下降。(2)与未间伐相比,间伐强度为60%对马尾松胸径和树高生长量提高效果最好,套种闽粤栲(Liriodendron chinense)和深山含笑(Michelia maudiae)对马尾松生长均有较好的促进作用,效果以深山含笑最好。因此,适合马尾松林套种改造的郁闭度范围为0.4~0.6,树种为山杜英;适合马尾松林改造的间伐强度为60%,套种树种为深山含笑。In order to find out the technical problems of interplanting tree species selection,stand canopy density adjustment and thinning intensity control in the transformation of low-efficiency Pinus massoniana forest,so as to optimize the stand tree species structure,improve the stand quality,enrich biodiversity and stabilize the plant community,this study selected the low-quality and low-efficiency Pinus massoniana forest in Changting County of Fujian Province for thinning,interplanting and canopy density adjustment,and analyzed the effects of different transformation modes after eight years.The results showed as follows:(1)interplanting broad-leaved trees Photinia×fraseri and Elaeocarpus sylvestris under Pinus massoniana forest with canopy density of 0.4-0.6 significantly promoted the height growth of Pinus massoniana,and interplanting Elaeocarpus sylvestris significantly promoted the DBH.In general,interplanting Elaeagnus sylvestris displayed the best effect.When the canopy density exceeded 0.6,interplanting broad-leaved trees under the forest intensified the interspecific competition,which led to the decrease of Pinus massoniana growth;(2)compared with the non-thinning,the thinning intensity of 60%showed the best effect on the growth of Pinus massoniana DBH and tree height,interplanting Liriodendron chinense and Michelia maudiae promoted the growth of Pinus massoniana,among which Michelia maudiae displayed the best effect.Therefore,the range of canopy density suitable for the interplanting transformation of Pinus massoniana forest is from 0.4 to 0.6,and the tree species was Elaeagnus sylvestris;the thinning intensity suitable for the transformation of Pinus massoniana forest is 60%,and the interplanting tree species is Michelia maudiae.

关 键 词：马尾松 低效林 郁闭度 套种 间伐 

分 类 号：S791.248[农业科学—林木遗传育种] S756.5[农业科学—林学]