Abstract:

In order to learn the variation of microflora and the changing rule of its functional diversity in different forest types of Pinus tabulaeformis and Ostryopsis davidiana, and discover the mechanism of Ostryopsis davidiana’s promoting effects to the growth of Pinus tabulaeformis, by traditional separation method and BIOLOG technology, the microbes of different rhizosphere soil were separated and identified and the functional diversity were tested and analyzed. The results turned out that: in the mixed forests of Pinus tabulaeformis and Ostryopsis davidiana, the microbes of rhizosphere soil were tested to be in largest number, uniform distribution and best stability; the functional diversity index in this rhizosphere soil was much higher than two pure forest types.