大兴安岭地区森林景观沿主要河流两侧分布的变化

编号 zgly0000363488

文献类型 期刊论文

文献题名 大兴安岭地区森林景观沿主要河流两侧分布的变化

学科分类 220.20;森林培育学

作者 陈文波  肖笃宁  郑蕉 

作者单位 江西农业大学 

母体文献 林业科学 

年卷期 2005,41(2)

页码 160-163,i003

年份 2005 

分类号 S759.91  P332.3 

关键词 大兴安岭地区  主要河流  森林景观  分布 

文摘内容 In this paper, the regularity and changes of the forest landscape along the major rivers, namely, Nuomin River, Bila River and Zhawen River in Daxing' an Mountains, Bilahe Forestry Bureau based on the interpretation of TM data were studied. The results showed that the regularity has changed a lot due to the gradually stronger human intervention on forest landscape. The most obvious change was the cultivated lands had been expanding alongside the major rivers. With the increasing of population, the only way to satisfy the increasing needs of the local people for subsistence is by expanding cultivated lands because of the backwardness of agriculture productivity. The regularity of conifer distribution along rivers of 1997 has changed in the diverse direction of that of 1988. The proportion of conifer gradually increases with 1 000 m further away from the major rivers. That is due to the favorable availability of conifer alongside river bank, the most populated area in the forest region。