明溪县混生观光木的毛竹林群落特征  

Characteristics of the Phyllostachys pubescen s forest Community of Mixed Tsoongiodendron odorum in Mingxi County

作　　者：赖建明 LAI Jianming(Mingxi State-owned Forest Farm,Sanming 365200,Fujian,China)

机构地区：[1]福建省明溪国有林场,福建三明365200

出　　处：《福建林业科技》2022年第3期18-23,34,共7页Journal of Fujian Forestry Science and Technology

基　　金：福建省三明市科技计划项目(明溪两个观光木天然群落特征比较及复合经营效果研究,2020-N-8)。

摘　　要：为探明混生观光木的毛竹林群落特征,分析有利于观光木更新和生长发育的毛竹林群落。于2019年,在福建省明溪县夏阳乡下坂村,采用样地法对混生有观光木的3种毛竹林群落(群落A:为天然竹阔混交林;群落B:以培育笋竹两用林为经营目标;群落C:以培育笋用毛竹林为经营目标)的植物组成、重要值、生活型谱、郁闭状况等群落特征和结构进行比较研究。结果表明,福建明溪混生观光木的3种毛竹林群落的树种组成、生活型谱都反映了中亚热带的特征;生活型谱高位芽占绝对优势(73.5%~89.9%),高位芽中以中高位芽为主,占52.5%~87.4%。群落A,以常绿阔叶树种为主,较为稳定,郁闭度高,林内观光木种群处于较高阶段,幼苗幼树少;群落B、C,毛竹占优势,林冠层物种单一,灌草植物少,在垂直方向出现断层,树冠闭锁程度较低,林内透光度较高,林内生境适合观光木种群更新和生长发育,但由于人工干扰,种质资源损失严重,尤以群落C更为严重。总体分析,群落B更适合观光木的更新和生长发育。建议减少或降低对现有的毛竹林资源的人为干扰,保护林下植被或导入观光木种质资源,以利于保护和发展珍稀观光木种群。In order to explore the community characteristics of Phyllostachys pubescens forest of mixed Tsoongiodendron odorum,the Phyllostachys pubescens forest communities that are conducive to the renewal and growth and development of Tsoongiodendron odorum are analyzed.In 2019,in Xiayang Rural Xiaban Village,Mingxi County,Fujian Province,three species of Phyllostachys pubescens forest communities with mixed plants with Tsoongiodendron odorum were treated by the plot method(community A:natural Phyllostachys pubescens broad mixed forest;community B:to cultivate Phyllostachys pubescens shoots and Phyllostachys pubescens dual-use forests as the business goal;community C:A comparative study on the characteristics and structures of plants,important values,life pattern spectrum,depression closure status,etc.)with the management goal of cultivating Phyllostachys pubescens forests for Phyllostachys pubescens shoots.The results showed that the tree species composition and life pattern spectrum of the three species communities of the Mixed-growing Tourist Tree of Mingxi,Fujian Province,reflected the characteristics of central subtropics.The high-level buds of the life-type spectrum are absolutely dominant(73.5%~89.9%),and the high-level buds are mainly medium-high buds,accounting for 52.5%~87.4%.Community A,dominated by evergreen broad-leaved tree species,is relatively stable,has high depression and closure,and the population of Tsoongiodendron odorum in the forest is at a higher stage,and there are few seedlings and young trees;community B,C,Phyllostachys pubescens dominant,canopy species single,shrub plants less,faults in the vertical direction,canopy closure degree is low,forest transmittance is higher,forest habitat is suitable for tourism wood population renewal and growth and development,but due to artificial interference,germplasm resource loss is serious,community C is more serious.Overall analysis,community B is more suitable for the renewal and growth and development of Tsoongiodendron odorum,It is recommended to reduce

关 键 词：观光木 毛竹 群落特征 

分 类 号：S725.2[农业科学—林木遗传育种] S718.542[农业科学—林学]