卧龙植物生活型垂直分布规律初探

AN APPROACH TO THE VERTICAL DISTRIBUTION PATTERN OF PLANT LIFE FORMS IN WOLONG NATURAL RESERVE

本文以卧龙植物的种类、生活型、海拔分布范围为基础,将卧龙植被划分为6个垂直带,对各带内植物生活型谱进行了研究,得出:卧龙地区具有各种生活型植物,但以高位芽和地下芽植物为主,在不同海拔梯度上有不同的植物生活型谱,随着海拔梯度的升高,构成生活型谱的高位芽植物比例下降,地下芽植物比例上升,在4500m 以上已无高位芽植物生长;除第二海拔梯度外,各种生活型植物的种数随海拔的升高而减少。

In this report, Wolong Natural Reserve is devided into six vertical distri- bution zones on the basis of the survey of plant species, plant life forms and the plant distribution at different altitudes. By researching the type and table of the plant life in cach zone, a conclusion was drawn as follows, There are plants of various life forms in Wolong district, but dominantly phanerophyles and hemicryptophytes. There are different types and tables of the plant life on different elevations. The higher an elevation is, the fewer the phanerophytes are and the more hemicryptophytes grow. Above the altitude of 4500m, there are no phancrophytes at all. The distribution proportion of the plants of dif- ferent life forms on the different elevations decreases with the rise of the eleva- tions except the second elevational level.