应用生态学报2001，Vol.12Issue(2)：304-308,5.
森林土壤种子库与天然更新
Forest soil seed bank and natural regeneration.
杨跃军 1孙向阳 1王保平2
作者信息
- 1. 北京林业大学森林资源与环境学院,
- 2. 国家林业局泡桐研究和开发中心，
- 折叠
摘要
Abstract
The characteristics of temporal dynamics and spatial distribution of forest soil seed bank and their effects on natural regeneration were reviewed in this paper. The density of the seed bank of forest soil, which is affected by the types and ages of forest, is lower than that of cultivated land and grassplot, and can vary widely. The extent to which the compo
sition of forest soil seed bank is influenced by its counterpart plantation depends on the stages of succession. The dynamics of forest soil seed bank is the combined effect of eriodical and random factors. It is suggested that forest soil
seed bank is the material base of forest regeneration, and the configuration and function of forest soil seed bank would influence the ability and the direction of natural forest egeneration. According to the characteristics of forest soil seed
bank and obstructive factors influencing regeneration, some artificial measures can be adopted to accelerate natural re
generation. Studies on the forest soil seed bank should focus on the application of basic theories of disturbed ecology, and
regard the reconstruction of degenerative ecosystem and the succession of populations in the ecotone as the main contents to study. As for the research method, it is advisable to mploy long-term and located observations.
关键词
森林土壤种子库/天然更新/时空格局分类
农业科技引用本文复制引用
杨跃军,孙向阳,王保平..森林土壤种子库与天然更新[J].应用生态学报,2001,12(2):304-308,5.
