摘要
本文以草地植物区系成分、群落类型、牧草经济类群、草地等级四项指标，通过定量化统计与分析，研究了大兴安岭中段东西两侧植被的分异特点。结果表明，植物区系成分科的构成和区系地理成分无显著差异，属、种构成有显著差异；群落类型、牧草经济类群及草地等级有极显著差异。对气候要素的５个因子逐一用成对法ｔ检验，又进行了模糊聚类，结果证实，东西两侧植被分异是气候差异性的结果。
Taking flora composition,community types,forage economic groups and grassland grades as the indexes,the different characteristic of vegetation in both east and west sides of Great Xingan Mou ntains MiddleSection was studied by the methods of quantitative statistics and analysis. The results showed that there areno significant differences among the families of floral elements and geographical elements.However,thereare significant differences among the genus and species,and extremely significant differef1ces among comunity types,forage econorrlic groups and range gradL3s. The t一test of five meteorolodical facters and fuzzy clus-tering have made it clearly that the meteorological differences are the reasons for the different vegetation be-tween the cast and west sides。
出处
《草业学报》
CSCD
1994年第2期12-19,共8页
Acta Prataculturae Sinica
关键词
大兴安岭
植被
Great Xingan Mountains.vegetation
