Dynamics of bud flow and bud bank of Phragmites communis population in dry land habitat of alkalinized meadow in the Songnen Plains of China Structure and development regulation on dormancy modules of Hordeum brevisubulatum clone on cultivated condition in the Songnen Plains of China Module structure of Leymus chinensis clones under cultivated condition in Songnen Plains of China Review of bud banks in grassland ecosystems Seasonal dynamics and vertical distribution pattern of bud bank in different erosion environments on hilly-gully Loess Plateau of Northwest China.