白莲蒿的特性和生态地理分布的研究

本文通过实地观察和分析，指出白莲高是多年生中旱生－石生半灌木状根蘖型草本植物。主要分布草甸草原和典型草原东、西部的砾石性低、丘陵的阳坡、半阴坡及丘陵顶部。又蒿建群及为正常组分的群落，是山地草原的重要群落类型，亦可成为夏绿阔叶林区域森林破坏后最重要的次生类型之一。其活动芽多数出现在地下枝条与根的分叉处；中龄枝条上较多。枝条从根颈顶部发出或芽水平走向或先向下生长，再向上生长而形成，并有明显的枝条位移现象。中龄植标根蘖性很强，能从母株不断生长新株。

THE CHARACTERISTICS AND ECOLOGICAL GEOGRAPHICAL DISTRIBUTION OF Artemisia sacrorum

Through field investigation that Artemisia sacrorum-perennial meso-xeromorphic petraeous suffrutescent root shoot herb,mainly distributes in grayelly soil in hillsite of meadow steppe and the east and west part of typical steppe was found.The community with Artemisia sacrorum is the major community type of mountain steppe and one of the major secondary vegetation in the region of summer green forest where its vegtation were destroyed.Artemisia sacrorum bud is produced from root collar and the base middle-aged branch,which is under ground.The shoot is produced from the top of root collar and con become a new independent individual.The displacement of shoot is obvious.Middle-aged indivedual is of strong ability of generation and gradually produce new one from mother individual.