油松植物种群自疏规律模型的研究
STUDY ON MODEL OF SELF THINNING LAW OF PINUS TABULAEFORMIS POPULATION
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摘要: 根据植物生长的密度理论和有关生物学假设,推导出一种新的植物种群自疏规律模型,即N=exp(aln2B+blnB+c),这里N和B分别为种群密度和植物种群平均重量或平均胸高断面积,a、b、c为参数。将该模型应用于油松种群密度变化规律研究中,证明该模型能很好地拟合实际的观测资料,并且具有表达式简单等特点。因而,该模型是油松植物种群自疏规律的有效描述。Abstract: Based on the density theory of plant growth and related biological hypothesis,a new model of self-thinning law of plant population was proposed,i.e. N =exp( aln2 B+bln B+c ),where N and B is population density and weight mean plant or mean basal area at DBH and a,b and c are parameters.It was proved that the model fitted observed data very well from Pinus tabulaeformis population,and which was very simple.Therefor,the model is a satisfactory expression of self-thinning law of plant po pulation.
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Keywords:
- Self-thinning law /
- Pinus tabulaeformis /
- Model
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期刊类型引用(2)
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