Abstract: Using the wind and air temperature profiles measured above wheat communities and wheat canopy characteristic elements(height of plant and LAI et al.)data,the analysis is made of the wheat canopy aerodynamic features.The results show that d,z0,and u■ depend on canopy characteristics and wind speed.Meanwhile the analysis of turbulent statistics in horizontai wind speed within wheat canopy is conducted.The results suggest that L,i,and σ~3 increase end ǖ decreases with the depth in canopy.Inaddition,the turbulent spectrum at high frequency is approximately in accordance with the“-5/3”power law.

Key words: NULL, NULL