A study on soil microflora of planting eleven years’ Masson pine

The soil microflora of planting eleven years’Masson pine on the soils from six lithological characters were studied. The results showed: (1)The soil microbial composition of Masson pine in the six soils was similar. And bacteria of nine genus, fungi of six genus and actinomyces of two genus were separated and identified.(2)The quantities of soil microbe in the six soils were apparently different, in which the quantities order of soil microbe was: Quartzy sandstone (198.58×10~5)Basalt (117.55×10~5)The Quarternary Period red clay (102.43×10~5)Feldspathic quartzy sandstone (86.98×10~5) Coal measures siliceous sand-shale (80.24×10~5) Metamorphic sandstone (69.86×10~5). Bacteria were dominant in the six soils, it were above ninety percent. The quantities of microbe changed with seasons. The changes of quantities of microbe in the non-rhizosphere were different from that in the rhizosphere, and the changes of quantities of bacteria, fungi and actinomyces were different too.(3)Rhizosphere effects of soil microbe of Masson pine in the six soils were apparently different and the changes ranged from 4.67 to 92.96.