【摘要】 本文对蛟河市辖区天南林场蒙古栎纯林进行设置样地调查,结果为:0.06hm~2样地内三期同时存活的样木共123株,其中包括122株蒙古栎。十年间样木年平均蓄积生长量为■,三期调查结果中林木蓄积量呈递增趋势,生长最快的区分段在14cm区分段,各调查期蓄积量分布数据均符合正态分布曲线,从5cm～20cm阶段林木生长蓄积增长量呈不规则变化,从林木胸径大于20cm以后的林木蓄积增长量规律非常明显,呈递增趋势。更多还原

【Abstract】 This paper investigates the plots of the Quercus mongolica pure forest in the Tiannan forest farm in the jurisdiction of Jiaohe City. The results are as follows: 123 strains of viable wood in the third phase of 0.06 hm~2 plot, including 122 strains of Mongolian alfalfa. In the past ten years, the average annual growth of the sample wood was =0.0193 m~3. The results of the third-phase survey showed an increasing trend of forest stocks, and the fastest growing segment was segmented in the 14 cm area. The distribution data of the survey periods all conformed to the normal distribution curve. From the 5 cm to 20 cm stage, the growth of forest growth and accumulation showed irregular changes. The growth of forest growth after the DBH of the forest was greater than 20 cm, which showed an increasing trend.更多还原