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采用大样本随机挖取单个无性系的调查和测定方法,分析了长白山区华北翦股颖无性系构件的结构及生长规律。结果表明,在籽实乳熟期,华北翦股颖无性系构件是由营养枝和生殖枝组成,其中,以生殖枝数量和生物量所占比例最大,分别为93.3%和97.1%。华北翦股颖无性系构件的关系中,生殖枝数量和生物量以及分株总数量和总生物量均随着丛径的增加呈幂函数异速生长(R2=0.661～0.712)。生殖枝数量与分株总数量之间以及生殖枝生物量与分株总生物量之间均呈极显著线性正相关(R2为0.997和0.965)。
A large sample of a random clonal survey and determination of cloning method, the Changbai Mountain area Scientops sinensis clonal components of the structure and growth. The results showed that clonal components of Castanopsis kawakamii were composed of vegetative shoots and reproductive shoots at seed maturity stage, of which, the proportion of reproductive shoots and biomass was the largest, accounting for 93.3% and 97.1%, respectively. In the relationship between clonal components of Pinus thunbergii population, the number of reproductive branches and biomass as well as the total number of ramets and total biomass all showed a power function allometric growth (R2 = 0.661-0.712) with the increase of the bundle diameter. There was a significant linear positive correlation between the number of reproductive branches and the total number of ramets and between the reproductive branch biomass and total ramet biomass (R2 = 0.997 and 0.965).