干旱区生态环境知识资源中心

We compared density and species of a seed bank in (1) a soil with a physical crust, (2) a soil with low plant cover with signs of erosion, and (3) a soil covered by dense vegetation with no evidence of erosion in Northeastern Mexico. From the 33 identified species, there were more seeds in the soil of the area without evidence of erosion (1,900 seeds m(-2) from 30 species), no differences were found between the soil with a crust (88.8 seeds m(-2) seeds from 12 species) and the eroded soil without a crust (62.7 seeds m(-2) from 10 species).