关键词: 更新方式, 林地, 植被, 土壤, 影响

Abstract: The impacts of three reproduction ways on forest vegetation in natural secondary forest slashing were studied. The results indicated that artificial forestation destroyed the forest vegetation and soil, resulting the species loss, soil and water loss and soil fertility decline, unfavorable for the forest growth. The species abundant degree in different stands was:natural regeneration >artificial regeneration >artificial afforestation; the vegetation biomass under woods was artificial regeneration >natural regeneration >artificial afforestation. Natural regeneration and artificial regeneration were beneficial to protecting the species variety and the vegetative growth, as well as the improvement of the physical and chemical properties in soil and increase in soil fertility. As a result, the higher economic benefits could be obtained.

Key words: reproduction way, forest land, vegetation, soil, impact