内蒙古乌兰察布西部温性荒漠草地土壤种子库初探

Study on Seed Bank of Desert Grassland in Inner Mongolia.

温性荒漠草地土壤种子库中有 13种植物 ,其中灌木 5种 ,多年生草本 5种 ,一年生草本 3种 ,分属于 7个科 ,种子密度仅为 4 6粒 /m2 。与其他类型草地相比 ,种子数量稀少 ,种子库的组成与现存地上植被的组成相似性极小。

Seed bank of desert grassland in Inner Mongolia was studied. There were 13 species of plant in seed bank, including 5 species of brushes, 5 species of peninsula herbage and 3 species of annual herbage. The density of seed was 46/m\+2. Compared with other grassland, the number of seeds in desert grassland seed bank were fewer. The components of seed bank was not similar to the components of current vegetation.