【摘要】 为了揭示白龙江中上游林区大型真菌物种种群结构,在收集已有文献资料和补点调查的基础上,对白龙江中上游林区天然分布的大型真菌资源进行了物种多样性和区系统计分析。结果表明:1)本区分布大型真菌共计486种,隶属于子囊菌门和担子菌门的55科,119属;2)优势科有红菇科、口蘑科等14科(占总科数的25.45%)364种(占总种数的75.78%);3)优势属有红菇属、丝膜菌属等27属(占总属数的22.69%)330种(占总种数的67.90%);4)大型真菌区系由多种地理分布类群组成,世界广布类群占71.43%,北温带类群占18.94%,泛热带地理分布中能够向北延伸分布的类群占7.56%,其余类群占比均不足2%。表明白龙江中上游林区大型真菌分布为北温带区系性质,具备从亚热带向北温带过度的区系特征。更多还原

【Abstract】 To reveal the species structure of macro fungi occuring in the middle-upper reaches of Bailongjiang River forest region,the bio-diversity and flora were statistically analyzed based on the data collection and supplemental survey.The results showed that 1)there were 486 species of macro fungi in the area,which belonged to 119 genera,55families of Ascomycota and Basidiomycota.2)There were 14 dominant families(25.45%)such as Russulaceae and Cortinariaceae,containing 364species(75.78%).3)There were 27 dominant genera(22.69%)such as Russulaand Cortinarius,containing 330species(67.90%).4)The phytogeographcial elements of the mycoflora included Cosmopolitans(71.43%),North Temperate(18.94%),Pantropic(7.56%)and others(less than 2%).The basic characteristics of mycoflora in this basin should be determined by North Temperate,with the floristic characteristics transiting from subtropical to northern temperate zone.更多还原