摩天岭北坡森林植被垂直带的初步研究

 本文对摩天岭北坡森林植被的垂直分布特点进行了初步研究。采用排序的方法，结合对群落生态外貌特点的分析，以及群落所处海拔高度，划分出森林植被垂直带如下：(1)山地常绿落叶阔叶林带，海拔1600m以下；(2)山地落叶阔叶林带，海拔1600—2100m；(3)山地针阔叶混交林带，海拔2100—2900m；(4)亚高山针叶林带，海拔2900—3450m；(5)高山灌丛草甸带，海拔3450m以上。

AN PRELIMINARY STUDY ON THE VERTICAL BELTS OF THE FOREST VEGETATION ON THE NORTHERN SLOPE OF MOTIANLING RIDGE, GANSU

In the paper, the characteristics of the vertical belts of the forest vegetation of the northern slope on the Motianling Mountain were discussed. using the methods of ordination and analysis of the physiognomy of the communities, which are distributed on the slope of the ridge, the following vertical belts of forest vegetation may be discerned.1. Evergreen and deciduous broad-leaf mixed forest belt at alt. 1600 m; 2. Deciduous broad-leaf forest belt at alt.1600–2100 m; 3. Coniferous and broad-leaf mixed forest belt at alt. 2100–2900m; 4. Subalpine coniferous forest belt at alt. 2900–3450m; 5. Alpine bush and meadow belt at alt. 3450m.