地理科学

地理科学 ›› 1991, Vol. 11 ›› Issue (1): 86-93,100.doi: 10.13249/j.cnki.sgs.1991.01.86

• 研究报道 • 上一篇    下一篇

大兴安岭岳桦林的类型、结构特征和分布规律

周瑞昌1, 杨国亭2, 马克平2, 孔刚1   

  1. 1. 黑龙江省科学院自然资源研究所, 哈尔滨;
    2. 东北林业大学, 哈尔滨
  • 出版日期:1991-01-20 发布日期:1991-01-20

THE TYPE,STRUCTURE AND DISTRIBUTION OF ERMANS BIRCH FOREST OF THE DA HINGGAN MOUNTAIN

Zhou Ruichang1, Yang Guoting2, Ma Keping2, Kong Gang1   

  1. 1. Institute of Natural Resources of Heilongjiang Province, Harbin;
    2. Northeast Forestry University, Harbin
  • Online:1991-01-20 Published:1991-01-20

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摘要： 岳桦林在东北大兴安岭分布在海拔940—1650m的山地。依据其组成、结构及分布特征划分三个类型。本区岳桦林在组成和结构上与长白山地岳桦林有明显的不同。岳桦林具有水土保持作用,应予以保护。

Abstract: Ermans birch(Betula ermanii)forest can be found in the mountain area of 940-1650m above sea level in the Da Hinggan Mountain of Northeast China.According to the composition,structure and distribution characteristics,the forest can be classified into three types.Ass.Herbsau-Betula ermanii,Ass.Rhododedron dauricum-Betula ermanii and Ass.Vaccinium vitis-idaea-Betula ermanii.Ermans birch forest takes the significant position in the subalpine area and is the main body of the mountain sparse cold-coniferous forest belt, In the Da Hinggan Mountain this kind of forest is not distributed in belt around the mountain top, Because of the special ecological environment,the forest, in this area differs from that in the Changbai Mountaro in the composition and structure.The direct economic benefit of ermans birch forest is not very great,but it so it should can play an important role in water and. soil conservation be protected effectively.