毛白杨落叶的分解及叶上小型真菌种群的演替  

DECOMPOSITION OF WHITE POPLAR LEAVES AND MICROFUNGAL SUCCESSION RELATED TO LEAVES

作　　者：李越中[1] 郑是琳[2] 姜广正[2] 

机构地区：[1]山东大学微生物研究所,济南250100 [2]山东农业大学植保系,泰安271018

出　　处：《微生物学报》1992年第4期299-304,共6页Acta Microbiologica Sinica

摘　　要：毛白杨(Populus tomentosa Carr.)在我国以黄河中、下游为分布中心。它作为绿化树种而广为种植。其落叶主要在地表层的土壤(5—15cm)中分解。各种不同的土壤微生物参与落叶的实质性分解,其中真菌起主要作用。落叶分解的研究在国内报道较少。落叶分解过程中叶上小型真菌种群的研究,国内尚无完整的工作。本文报道了毛白杨落叶在一年内的分解和叶上小型真菌种群的演替,并探讨了温度和湿度对分解的影响。Decomposition of leaves of Populus tementosa Carr.was studied in about one year.Theresults show that tendency of changes of amino acid contents in leaves is similar to that of num-ber of microfungi in earlier stage.Suitable temperature and humidity accelerate the decomposi-tion and shorten the process of microfungal succession.The dominant microfungi on the deco-mposing leaves are Penicillium spp.,Acremonium spp.,Cladosporium spp.,and Aspergillus spp.Other periodically dominant fungi are Alternaria alternata,Trichurus spiralis,Stachybotrys (?)-ra,Pachybasium sp.et al.

关 键 词：毛白杨 真菌种群 演替 

分 类 号：S718.81[农业科学—林学]