不同连栽代数杉木人工林土壤真菌群落结构及多样性分析  

Study of the Soil Fungi Community Structure and Diversity in Different Successive Rotation Chinese Fir(Cunninghamia lanceolata)Plantations

作　　者：严绍裕[1] 傅成杰 余燕华[1] 钱叶会[1] YAN Shaoyu;FU Chengjie;YU Yanhua;QIAN Yehui(Fujian Forestry Vocational and Technical College,Nanping,Fujian 353000)

机构地区：[1]福建林业职业技术学院,福建南平353000

出　　处：《武夷学院学报》2020年第6期19-24,共6页Journal of Wuyi University

摘　　要：为了探究杉木一代林(FCF)、连栽二代林(SCF)及连栽三代林(TCF)土壤真菌的数量与种类、真菌群落多样性,采用高通量测序技术,测定不同连栽代数杉木人工林土壤真菌的数量与群落多样性。结果表明:不同林分类型中的土壤真菌主要优势门类有:子囊菌门、担子菌门、接合菌门,且不同林分之间土壤的优势真菌门类存在一定的差异;随着连栽代数的增加,土壤真菌优势门类相对丰度逐渐降低;采用多个指标评价不同代数杉木林土壤真菌数量与群落结构的多样性,得到不同代数杉木林中土壤真菌群落多样性大小顺序为FCF>SCF>TCF;通过从土壤物理化学性质与真菌优势门类的RDA分析得到,真菌优势门类与土壤物理化学性质存在一定的相关关系。The soil fungal community structure and fungal community diversity of different algebraic Chinese fir(Cunninghamia lanceolata)plantations were analyzed.High-throughput sequencing technology was used to determine the diversity of soil fungi and community structure.The results showed that the main dominant taxonomy of soil fungi in different forest types were Ascomycota,Basidiomycota,and Zygomycota,and there were some differences in dominant fungal species between different forests;The overall trend of fungal dominant species showed that the relative abundance in the soil of Chinese fir forest decreased gradually.The diversity of soil fungi and community structure in different algebraic Chinese fir forests were evaluated by multiple indicators,and the soil fungi community in different algebraic Chinese fir forests was obtained.The order of diversity richness is FCF>SCF>TCF;through the RDA analysis of physicochemical properties and fungal dominant species,there is a certain correlation between fungal dominant species and physicochemical properties.

关 键 词：杉木人工林 连栽障碍 真菌群落多样性 高通量测序技术 

分 类 号：S791.27[农业科学—林木遗传育种] Q939.5[农业科学—林学]