COMPARATIVE RESEARCH ON BIRD COMMUNITIES IN DIFFERENT LANDSCAPE ECOLOGICAL TYPES IN NORTHERN AND SOUTHERN OF DUNHUA
敦化南北不同景观生态类型鸟类群的比较研究

The present paper tries to select a comprehensive index, and then divide different landscape ecological bird communities on the basis of the index. The climatic and topographic factors are used as the first level indices of dividing landscape ecological types, the vegetational factors are used as the second level indices of dividing landscape ecological types. The landscape ecological types, which are made by human activities, are separated from the above types. The approximate degree between various bird communities and different landscape ecological types are reflected by the analyses of bird communities in different regions in order to provide zoological indices that indicate difference degree of landscape ecological types. On the basis of landscape ecological types, some revisions are made with regard to these types by using analytic results of bird communities. Subsequently, various landscape ecological bird communities are divided according to the distributional law of birds and the major factors affecting the distribution of different level of bird communities.