祁连山地区植被特征及其分布规律

分析和讨论了祁连山地区主要植被类型及其分布特征。祁连山地区随着青藏高原的强烈隆升表现为整体抬升，植被具有明显的生态地理边缘效应特征和高原地带性规律。该区植被虽然受到四周的较大影响，但各类高寒植被占有绝对优势，表现出与青藏高原植被整体明显的相似性和广泛的一致性。另一方面，本区植被也有其特殊性及与高原面存在一些差异。因此，建议把祁连山地区做为青藏高原植被区的次一级独立单元

VEGETATION CHARACTERISTICS AND ITS DISTRIBUTION OF QILIAN MOUNTAIN REGION

The main vegetation types and distributional characteristics in the Qilian Mountain region were studies. It is shown that characteristic of the vagetation is evidanced by eco geography marginal effect and plateau zone law. The vegetation of this region is affected considerably by the vegetation around the Qilian Mountain region, but is alvantagaous for all kinds of alpine vagetations, and has an evident similarity and an extensive unanimity with those of Qinghai Xizang Plateau. On the other hand, the vegetation of the area has its specificity difference with the plateau plane. So, the authors consider to classify the Qilian Mountain region as the secondary unit of the Qinghai Xizang Plateau vegetation region.