两种药用淫羊藿克隆构型与分株种群特征比较  

Comparison of clonal architectures and ramet population characteristics between two Epimedium species

作　　者：冯图[1] 黎云祥[2] 

机构地区：[1]毕节学院环境与生命科学系,贵州毕节551700 [2]西华师范大学生命科学学院,四川南充637002

出　　处：《山地农业生物学报》2008年第6期512-516,共5页Journal of Mountain Agriculture and Biology

基　　金：毕节学院自然科学研究基金项目资助(20072014);四川省科技厅应用基础项目资助(03JY029-021-22)

摘　　要：为探讨淫羊藿与箭叶淫羊藿生境资源利用及生态适应对策的异同,比较了异质性生境中两种淫羊藿克隆生长指标、克隆构型指数(V)和分株种群密度。结果表明,淫羊藿与箭叶淫羊藿的间隔子长度、根状茎长度、分株高度差异显著,分枝强度和分枝角度差异不显著,克隆构型指数V和分株种群密度接近。两种淫羊藿均为"游击型"克隆植物,其地下根茎寿命在2年以上,具有很强的克隆整合性。应减少对2种淫羊藿生境的干扰和保护其地下根茎的克隆生长,才能实现野生淫羊藿资源的可持续性利用。In order to explore the differentiae in ecological strategies between Epimedium brevicornum and Epimedium sagittatum which were grew in heterogeneous habitates, the characteristics of clonal growth, clonal architecture （V） and ramet populations of them were measured and analyzed. The results revealed that there were significant differences in spacer length, rhizome length and ramet height between two species, although the differences in branching intensity and branching angle were insignificant. The values of indexes V and ramet population density between two species were near. They both have the clonal architecture of ＂guerilla＂. Their rhizomes lifepans both were 2 years old at least, which play an important role in clanal integration for growth. For the purpose the continuous utilization of Epimedium species grew in fields, we should reduce the disturbance of habitates and protect the rhizomes of Epimedium species.

关 键 词：克隆生长 克隆构型 淫羊藿 箭叶淫羊藿 分株种群特征 

分 类 号：Q948.1[生物学—植物学]