江西齐云山自然保护区植被类型与森林资源特征

The vegetation types and forest resources in Jiangxi Qiyunshan Nature Reserve

为探究江西齐云山自然保护区植被类型与森林资源,采用样线踏查与样地调查相结合的方法,对保护区内植被进行调查,同时利用森林资源二类调查数据,统计分析森林资源的特征。结果为:1)植被可归为4个植被型组,11个植被型,70个群系,其中常绿阔叶类型的群系数量最多,占总群系数量的30%。2)福建柏、长苞铁杉、伯乐树等起源古老的种群在保护区内更新良好。3)森林类型以天然林为主,其面积、蓄积量分别占总森林面积、蓄积量的93.3%、96.3%;林龄结构上,暂以中龄林为主。可见,江西齐云山自然保护区植被类型多样、起源古老种群保护良好,森林面积大且质量高,具有很高的保护与研究价值,对维持区域生态环境稳定具有重要意义。

In order to explore the vegetation types and forest resources in Jiangxi Qiyunshan Nature Reserve.A comprehensive investigation of the vegetation types was conducted in methods of route inspection and sample survey.At the same time,the characteristics of forest resources were analyzed base on the second type inventory of forest resource.The result showed that:(1)The vegetation can be divided into 4 vegetation groups,11 vegetation types and 70 formations,among which evergreen broad leaved forest formation accounted most,up to 30%.(2)Ancient populations,such as Fokienia hodginsii,Tsuga longibracteata,Bretschneidera sinensis are well renewed.(3)Natural forest is the main forest type,taking up 93.3%and 96.3%of the total forest area and volume respectively.In terms of forest age structure,middle-aged forest is absolutely dominated.It can be seen that the diverse vegetation types and ancient populations of Jiangxi Qiyun Mountain Nature Reserve are well protected.The forest area is large and high in quality with high value of protection and research,which is of great significance to maintaining the stability of the regional ecological environment.