Species diversity and funga of wood-inhabiting macrofungi in burned areas in northeast China
Decomposition and fire disturbance are important ecological processes in the nutrient cycle of forest litter.As decomposers,wood-inhabiting macrofungi play an irreplaceable role in nutrient cycling,soil formation and global carbon balance.Charred wood as a special ecological environment provides an unique growth environment for wood-inhabiting fungi.In this study,the species diversity,distribution characteristics and ecological habits of wood-inhabiting fungi in three burned areas in northeast China were comparatively analyzed.A total of 248 species of wood-inhabiting fungi belonging to 154 genera,68 families,and 15 orders was obtained from the three burned areas.Of these species,103,126 and 148 were found in the Greater Khingan Mountains,the Lesser Khingan Mountains and the Changbai Mountains,respectively.Polyporaceae and Hymenochaetaceae are dominant,and 34 genera and 33 species are common in the three burned areas.Host preference and floristic geographical composition of wood-inhabiting fungi in the three burned areas were more or less similar and the floristic characteristics were obviously boreal.The number of common species,occasional species and rare species of wood-inhabiting fungi in the three burned areas are different,while their proportions are similar.The proportions of common,occasional and rare species are more similar in the burned areas of Greater Khingan Mountains and Lesser Khingan Mountains.It was found that fire disturbance and different restoration periods had a certain impact on the species diversity of wood-inhabiting fungi,while vegetation type and climate were the main factors affecting the floristic composition of wood-inhabiting fungi.
NETL
NSTL
万方数据
