摘要
本文系统研究了马尾松人工林地上部分生物量结构规律。提出了马尾松地上部分生物量与胸径和树高关系的数学模型W_干=6.3891+138.4515D^2H、W_枝=21.7006—90.5257D^2H+183.5857(D^2H)~2、W_叶=1.6403+16.5500(D^2H)~2、W_总=35.3710+209.2233(D^2H)~2和叶面积与叶鲜重将的关系S_叶=3.8407+9.0774W_叶,优势木和平均木地上部分干、枝、叶生物量的比例和垂直分布规律。同时还指出了土层厚度和母岩是影响马尾松生长的主要因子;马尾松林的最适叶面积指数为13—14。
Based on the study on the biomass structure of plantations of Pinus massonians, mathematical models were proposed as W_s=6.3891+138.4515D^2H, W_B=21.7006-90.5257(D^2H)~2+183.5857(D^2H)~2, W_L=1.6403+16.5500(D^2H)~2, W_T=35.3710+209.2233(D^2H)~2 and S_L=3.8407+9.0774W_L. The biomass of boles, branches and leaves of dominant trees were different from those of average trees. Soil depth and parent rock played very important roles in growth of the plantations. The leaf area index for the plantations was 13—14.
关键词
马尾松
生物量
生态因子
人工林
Pinus massoniana
Biomass
Ecological factors
Mathematical model
