珍稀濒危植物绵刺克隆生长构型与资源利用方式关系的研究

绵刺是蔷薇科绵刺属植物，为阿拉善荒漠区特有植物。其具有独特的克隆生长构型，即同一植株同时具有两种典型的克隆生长构型；游击型克隆生长构型和密集型克隆生长构型，而成为研究克隆种群生态学代表性的材料。由于绵刺生存环境中资源异质性的广泛存在和干扰的随机发生，因而在不同的生态条件下两种克隆生长构型是可塑的，这种可塑性是绵刺对环境资源利用最优的进化对策。本文对不同干扰和不同资源的方差分析，得出绵刺在适应环境中所表现的觅食行为和风险分摊等生态对策，并对游击型和密集型及资源利用方式的定义进行修改和完善。

STUDY ON THE RELATIONS BETWEEN CLONAL GROWTH ARCHITECTURE AND UTILIZING RESOURCE PATTERN OF RARE AND ENDANGERED PLANT:Potaninia mongolica Maxim

Potaninia mongolica Maxim.is the special plant in Alashan desert,which belongs to Rosaceae.Two kinds of typical clonal growth architectures,guerilla and phalanx in Potaninia mongolica Maxim.,which are regarded as the best material in researching clone population.Resource heterogeneity and random disturbance leads to the extended plasticity between guerilla and phalanx in different survivable environment.The plasticity makes Potaninia mongolica Maxim.maximize in utilizing resource.By the method of variance analysis in random disturbance and resource heterogeneity,drawing the ecological tactics of foraging and risk-spreading for Potaninia mongolica Maxim.to adapt existing conditions.The definition of clonal growth architectures of guerilla and phalanx as well as utilizing resource pattern was implement and adujust.