路边青种群构件结构及生长规律分析

摘要

采用大样本随机取样法，挖取单个植株进行调查和测定，统计分析结果表明，在盛花期，路边青种群构件结构是由根、茎、基生叶、茎生叶、花及果实组成，其中，叶片生物量所占植株生物量的50.52%。路边青各构件的关系中，株高与茎生物量有密切的相关关系，其相关程度最佳的为线性函数，其确定系数 R2为0.4943。茎直径和茎生物量、茎鲜重之间有密切的相关关系，其相关的程度最佳的均为线性函数，其确定系数 R2值分别为0.4224和0.5843。路边青叶片的生长遵循着不同的规律，不仅具有一致的同速生长规律，也有异速生长规律。%In this paper,large and random sampling were adopted to analyze structure and growth regulation of Geum aleppicum modules of population. The results showed that Geum aleppicum modules of population consisted of root, stem,basal leaf,stem leaf,flower,akene. In the florescence of Geum aleppicum,leaves biomass was 50. 52% in plant biomass. plant height and stem biomass,stem diameter and stem biomass,and stem fresh weight were all closely relat-ed. The best degree of correlation wear linear function,with the R2 of 0. 4943,0. 4224,0. 5843. Yet,rowth regulation of Geum aleppicum basal leaf and stem leaf quite different. Not only wear accordant isogony but wear allometry.