Effects of Fire on Undergrowth Vegetation and Tree Regeneration in Greater Khingan Mountains
This paper analyzed the effects of different fire intensity(severe,moderate and light)on tree regeneration and undergrowth vegetation based on the data of different intensity fire sample plots in Tahe Forestry Bureau of Daxing'an Mountains.The results showed that different fire intensity(severe,moderate and light)had a significant impact on the regeneration of birch and poplar.Severe fire promoted the growth of ground diameter and tree height of birch and poplar,which was conducive to the regeneration of pioneer species such as birch and poplar.Forest fire has little impact on the number of undergrowth plant species,but it has changed the dominant pop-ulation of undergrowth plants.Rhododendron,Vaccinium uliginosum Linn,Artemisia,Calamagrostis angustifolia,etc.have gradually be-come the dominant population.Severe fire has made the forest ecosystem develop towards marsh.
万方数据
维普
