大兴安岭火烧迹地主要目的树种的天然更新  

Natural Regeneration of Main Tree Species in Burned Forestlands in Daxing’an Mountains

作　　者：董和利[1] 徐鹤忠[1] 刘滨辉[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《东北林业大学学报》2006年第1期22-24,共3页Journal of Northeast Forestry University

摘　　要：对不同火烧方式、火烧强度、林分组成、坡向、坡位、郁闭度、土壤厚度、下木盖度、地被物盖度、林龄等条件下的样地的天然更新情况进行了调查。结果表明:地表火火烧迹地的天然更新效果好于树冠火火烧迹地;中度火烧迹地好于重度火烧迹地;发生火烧的林分比未发生火烧的林分天然更新效果好。An experiment was conducted to investigate the natural regeneration of main tree species in burned forestlands in Daxing＇ an Mountains under different burning patterns, fire severity, stand composition, slope aspects, slope position, canopy densities, soll stratification thickness, herb coverage, grass covers and tree ages. Result showed that the natural regeneration effect of surface - burned forestlands is better than that of canopy - burned forestlands, and forestlands with medium fire severity are better than those with high fire severity. Natural regeneration effect of fire - burned forests is better than that of unburned forests.

关 键 词：火烧方式 火烧强度 主要树种 天然更新 

分 类 号：S754.1[农业科学—森林经理学]