伐木对保留木损伤的研究

Study on Felling to Stander Damage

本文通过兴隆林业局的实测资料,确定出林分密度和采伐强度对保留木损伤的影响,找出其变化规律,认为:①随着林分密度的增加,保留木损伤率也增加。其中,林分密度在300株/hm^2以下时,损伤率增加较快,以上时较慢;②随着采伐强度与林分密度乘积的增加,保留木损伤率也增加;③阔叶树采伐时的保留木损伤率比针叶树的大。

Through real surveying material, the paper determines the influence of forest density and felling intensity to stander damage and finds out changing regulation. It thinks: (1)In pace with the increase of forest density, damage rate of stander also increase. When forest density is below 300 trees/hm2, damage rate increase quickly. (2) In pace with the increase of felling intensity multiply forest density, damage rate of stander also increase. (3)The damage rate of stander when fell broadleaf trees is bigger than the damage rate of stander when feel coniferous trees.