The dynamics of soil seed banks and seed movement was investigated in three bare alkali-saline patches in Songnen grassland, Northeast China, for exploring their potential role in the vegetation restoration of bare alkali-saline patches.

• 摘要在松嫩平原不同退化程度的草地中选取三个次生光碱斑，通过分析其土壤种子库和表面种子流动态，探讨了土壤表面种子流在次生光碱斑植被恢复中的潜在作用。