Difference analysis of community diversity and soil chemical properties in different Pinus tabulaeformis forest types

In order to explore the differences in soil chemical properties of different pinus tabulaeformis forest-types and its relationship with Dendrolimus tabulaeformis in serious degree of relevance,the soil chemical properties in three different stand types of P.tabulaeformis pure forest,P.tabulaeformis-Dahurian larch mixed forest,and Apricot Tilia pine mixed forest,where D.tabulaeformis occurred from the heavier to lighter,were compared and analyzed.The results showed that both soil fertility and soil chemical properties in the P.tabulaeformis pure forest with heavier D.tabulaeformis disaster are proved to be lower than those of the P.tabulaeformis mixed forest with lighter D.tabulaeformis occurrence in soil organic matters,total N,all P,available P,full K,and available K.