东祁连山高寒灌丛植被类型与分布特征

Study on the Vegetation Types and Distribution of Alpine Shrubs in Eastern Qilian Mountains

对东祁连山金强河地区的高寒灌丛的植被类型、群落结构特征、种类组成、外貌特点、生态地理分布进行了调查研究。结果表明，本地区的高寒灌丛有头花杜鹃－百里香杜鹃灌丛、青海杜鹃灌丛、杯腺柳灌丛、金露梅灌丛、鲜黄小檗灌丛、短叶锦鸡儿灌丛、窄叶鲜卑木灌丛和藏沙棘灌丛８类。指出坡向、坡度和海拔是限制本地区高寒灌丛群落分市的主要因素。

Characteristics of aspect, ecological and geographic distribution, shrub types, community construction, composition of species of alpine shrubs in Jinqiang River area of Eastern Qilian Mountains were studied in this paper. The results showed that there were & types of alpine shrubs in the area as follows: Rhododendron capitatum+R. thymifolium shrub, R. przewalskii shrub, Salix scherophylla shrub, Potentilla fruticosa shrub, Berberis diaphana shrub, Caragana brevifolia shrub, Hippophae thibetanus shrub, Sibiraea angustata shrub. The relief (aspect and angle of slope) and elevation were the key factors affecting the distribution of the alpine shrubs.