关键词: 森林, 幼苗更新, 光环境异质性, 森林演替, 生态恢复

Abstract: This paper summarized the harms of soil heavy metals pollution, the advantages of  using forage grass as remediation plant, and the effects of main forage grass species in phytoremediation of heavy metals-contaminated soils. To select the forage grass species with strong capability in accumulating heavy metals and to search for various kinds of measures to raise the phytoremediation capability of forage grasses would be the research hotspots, and the post-processing of phytoremediation, especially the production techniques of recycling the heavy metals from plants, should be more concerned with.

Key words: Forest, Seedling regeneration, Light environmental heterogeneity, Forest succession, Ecological restoration