The role of diaspores and microsites in restoring degraded grasslands

作者：Rong Zhang, Chen Ya-ming, Guojun Sun, Feng‐Min Li · 发表于：Europe PMC (PubMed Central) · 年份：2004 · 被引用次数：2 · 研究领域：Mycorrhizal Fungi and Plant Interactions、Plant Parasitism and Resistance、Botany and Plant Ecology Studies

Successful restoration of degraded grassland is mainly dependent upon the efficient establishment of seedlings both from available seeds and parental clones, i.e. available diaspores in grassland communities are the intrinsic requirements for the restoration of degraded grassland. Further more, safe sites in the communities that provide seeds, seedlings and even adult individuals with suitable resources, such as nutrients, water, light etc., for their normal germination, growth and development, constitute the extrinsic condition for the restoration of degraded grassland. The lack of available diaspores and safe sites in degraded grassland communities has limited the process of degraded grassland restoration, to meet the requirement for both available diaspores and safe sites simultaneously is the prerequisite for the restoration of degraded grassland. Artificial preparation of both available diaspores and safe sites in grassland communities could increase the speed of the restoration, i.e. additional diaspores should be provided in the communities that limited by diaspores limitation during natural restoration, and/or created safe sites for the additional diaspores. Different requirements of various plant species for efficient establishment in the process of restoration need specific treatment both in diaspores and habitats. The precent study aims at discuss the importance of diaspores and microsites and their implications in the restoration of degraded grasslands.