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摘要：主要集中在外在机制方面，如水分、养分、光照等环境资源供应水平高低与克隆生长特征及形态特征的关系且这些研究几乎以草本或木质草本植物为对象能通过体内生长素和细胞分裂素平衡关系调节顶端分生组织和侧生分生组织的活动强度，从而改变克隆生长格局，这个过程体现了植物克隆生长的内在调节机制中国沙棘3×3回归设计，田间排列汲取随机区组和拉丁方排列的优点，进行生长素和细胞分裂素配合喷施。基于田间试验数据，建立了中国沙棘的生长量、生物量及其分配、克隆生长参数与激素比例之间的定量探讨种群特征对激素用量及其配比的机理不仅可用于植物激素生态适应对策的分析和诠释，还可为中国沙棘克隆生长的人工调控提供理论依据。Y= a+bI+cC+dI2+eC2+fIC。由此说明，激素对中国沙棘的生长具有明显的调节作用，随着量的增加，种群生长量、种群及其构件生物量的增幅增加种群将的生物量投资于地上部分的生长，以种群对资源的种群加大对地下部分生物量，促进的生长以提高种群对养分资源利用树干、、克隆器官种群在资源获取与储藏利用之间的精细分工，以及生长与生存之间、繁殖与生长之间权衡随着用量的增加，种群对资源的稀疏地分布在生境中，生长格局倾向于游击型，中国沙棘，克隆生长，Abstract: In order to maintain the stability and persistence of population, clonal plant can take full use of favourable patches or avoid adverse patches with clonal plasticity regulation when the environment conditions are changed, and the fitness of population is improved. The adjusting mechanism of clonal plasticity includes external mechanism and the internal mechanism. At present, the researches mainly focus on the external mechanism, the relationship between the supplying level of environment resource and the clonal growth morphology characteristics of herbage and woody herbage. But there is no research about the internal mechanism (mainly hormones effect) and tree species. Chen-shang put forword a hypothesis on the bases of Pan-ruichi’s theory: clonal plant can change the action intensity of apical shoot meristem and lateral shoot meristem and change the clonal growth pattern with the amount and balance relationship of IAA and CTK adjustment. This process reflects the internal mechanism of clonal plasticity regulation. Based on the causes mentioned above, exogenous plant hormone (auxin in combination with cytokinin) is applied on the clonal tree species Hippophae rhamnoides L. ssp. sinensis. with 3×3 regression design and the advantages of Latin arrangement. And the regression equation between growth increment, biomass amplitude, biomass distribution, clonal growth index and the amount of exogenous plant hormones are built. The adaptation mechanisms a