The Mainly Distributing Characteristics Of Rhizosphere Microorganisms About The Group Plants Of Tarim Barren Desert River Bank Forest Builds

Study 9 species of plant in four region that is Tieganlike, kumutuge, Yingsu and Alagan in Tarim River, as followings: Populus euphratica, Tamarix sp, Lycium ruthenicum, Alhagi sparsifolia, Glycyrriza inflate, Karelinia Less., Poacynum hendersonii, Phragmites communis and Glossogyne tenuifolia, through collecting the root system of the various different plant, separating and cultivating the rhizosphere microorganism, and statistic the number of the rhizosphere microorganism. The result studying is indicated show:The quantity size of three major kinds of rhizosphere microorganism about Tarim barren desert river bank forest mainly being in proper order: Bacteria> actinomyces> fungi. The quantity of fungus and actinomyces are larger than the other areas and plants. The maximum of bacteria and fungi is belong to Glycyrriza inflate. But the maximum of actinimyce is belong to Phragmites communis.During the periods of spring and autumn, the quantity perpendicularity of rhizosphere microorganisms of the forest plants which are Populus euphratica and Tamarix sp. has the different distribution characteristics in different soil layer depth.The plant's age is possessed of effect on the quantity of rhizosphere microorganisms, the quantity of the Tamarix sp. rhizosphere microorganisms do not show increasing by growing. The actinomyces's quantity size is in proper order: young seedling> fully grown plant.9 species of plant's rhizosphere is obvious than other areas and plants.The value of these results is important for promoting vegetation recovery and soil changes process which are interfering by the manpower's disturbance, and have provided the effective basis index in restoring and rebuilding process about the lower reaches area vegetation in Tarim River.