A one-equation model is developed in this paper to simulate the meteorology and turbulent characteristics of vegetation.Results show that the wind velocity vegetation canopy rapidly decreases near the maximum vegetation leaf area density,then gently approaches to the ground surface.The reynolds stress abruptly decreases downwards from the top of vegetation,rapidly weakens between 0.4 and 0.6 of Z/Hc;At the bottom of vegetation canopy the wind and its shearing are small,the turbulence is also weak,therefore the momentum transfer is trivial.Due to the divergence/convergence of turbulence flux within vegetation,the intensity of turbulence gradually increases upwards from the bottom of vegetation,and approximately keeps constant above vegetation canopy.