摘要
本文对刺五加生长过程和年允收量进行了初步研究。刺五加种群绝大多数由12龄以下的植株组成。单株高生长和地径生长的数量模型为:Hi=0.210A+1.1656logAi(r_1=0.9895)和Di=0.1833+0.9832logAi(r_2=0.9660);刺五加年允收量方程为W年=K_1·K_2·K_3·W总,其中,年允收系数K_1=0.083;采收系数K_2=0.800;经济量系数K_3=0.550;即W年=0.037W总。
populations of Acanthopanax senticosus are almost composed of individuals below 12 years old. The growth mathematical model of its height and basal stem are Hi=0.1204+1.1656logAi (r_1=0.9895); Di=0.1833+0.9832log Ai (r_2=0.9660). The permitted purchase quantity eqaation is W=K_1·K_2·K_3·W_1·K_1=0.083, a reciprocal of expected longevity; K_2=0.800, a coefficient of field colection; K_3=0.550, a percentage of stock and root weight for medical use (dry weight) contrast to fresh weight; W is a weight of permitted purchase quantity per year; W_1 is a sum of fresh stock and root weight in cert ainarea.
出处
《林业科技》
北大核心
1992年第1期12-14,共3页
Forestry Science & Technology
关键词
刺五加
生长
允收量
Acanthopanax senticosus
Growth
permitted purchase quantity
Equation
