Field survey and laboratory experiment were conducted to study the characteristics of soil seed bank for the grassland in a typical prairie on the Loess Plateau,such as species composition,density,spatial and temporal pattern distribution,and diversity.Results showed that there were 37 species in the seed bank,which belongs to 11 families.For the species of seed bank,Gramineae,Compositea,Labiatae,Leguminosae,and Panunculaceae were dominant.From green up stage to withering stage,the percentage of Leguminosae...
修改评论