关键词: 沙地, 植被, 演替

Abstract: The investigation area belongs to Warm-temperate and Semi-humid Zone. The dominant plant species on the sandy land are:Imperata cylindrica var. major, Zizyphus jujuba, Robinia pseudoacacia, Platycladus orientalis, Agriophyllum squarrosum, Cyperus rotundus, Cynodon dactylon etc. The major succession processes of vegetation association are consistent with the process from which the shifting sand turned into fixed sand. the models of succession series are:Comm. Cyperus rotundus-Agriophyllum squarrosum-Imperata cylindrica var. major. The Zizyphus jujuba and Vitex negundo var. heterophylla are senior and stable association in the area, they maintain stable for a long period without any external disturbances.