Effects of fire disturbance on the forest structure and succession in the natural broad-leaved/Korean pine forest

编号 zgly0000301511

文献类型 期刊论文

文献题名 Effects of fire disturbance on the forest structure and succession in the natural broad-leaved/Korean pine forest

学科分类 220.3030;森林防火学

作者 LIULi-juan  GEJian-ping 

作者单位 BeijingNormalUniversity 

母体文献 Journal of Forestry Research;林业研究: 英文版 

年卷期 2003,14(4)

页码 269-274

年份 2003 

分类号 S762.1  S791.247 

关键词 天然林  火灾  林火  红松  演替  林分构成  群落  小兴安岭  生态学 

文摘内容 Investigations on charcoal in the soil, fire-scarred trees, stand composition, forest structure as well as regeneration status were carried out in the natural broad-leaved/Korean pine (Pinus koraiensis) forest after fire disturbance at Liangshui Nature Reserve on the mid-north of Xiaoxing'an Mountains from 1990 to 1992, and the ecological effects of fire disturbance on the formation and succession of this kind of forest were analyzed according to the survey results. The average depth of charcoal in the soil was related to the timing of the fire. According to the characteristic of fire-scarred trees, the dynamic map of the fire behavior was drawn onto the topographic map. It showed that the dimension and extent of the fire disturbance was closely related with site conditions. Fire disturbance only led to a significant difference in stand composition and diameter class structurefor the stands at different locations, rather than completely destroying the forest. After fire disturbance, the horizontal community structure was a mosaic of different patches, which were made up of different deciduous species or different sizes of Korean pines, and the succession trend of each patch was also different. In the sites with the heavy fire disturbance, the intolerant hardwood species were dominant, and there were a large number of regenerative Korean pine saplings under the canopy. In the moderate -disturbed sites, the tolerant hardwood species were dominant, and a small number of large size Korean pines still survived. In the light-disturbed sites, large size Korean pines were dominant。