Diversity of Cellouse-decomposing Fungi and the Characteristic of Decomposition Under Planting Corn of Black Soil in Jilin Province

From April in 2003 to December in 2004,the experiment had identified with 14 genera and 27 species,three of them were the new recorded species in Jilin from 181 samples of black soil,they were Penicillium citrinum Thom,Penicillium corylophilum Dierckx and Penicillium janthinellum Biourge.There were 14 genera and 24 species in upper layer soil(0-20 cm),11 genera and 19 species in the sub-upper layer soil(20-40 cm).11 genera and 19 species were the same in tested soil.Penicillium and Aspergillus were advantage of cellouse-decomposing microorganisms and the relative volume accounted for 33.33% and 25.93% respectively.The capabilities to decompose of cellulose were different,Penicillium citrinum Thom.Aspergillus niger v.Tiegh,Trichoderma harziamum Rifai,Mycol and Trichoderma atroviride P.karsten,Finl were stronger than Rhizopus stolonifer(Ehrenb.) Lind.and Geotrichum candidum Link.