Abstract:

Species and quantities of birds at 20 separating green belts of Beijing urban area were investigated between July 2003 and July 2004. Totally 90 bird species in 34 families and 16 orders were recorded, in which Accipiter nisus, Falco tinnunculus, Aix galericulata and Athene noctua were protection animals at the national level Ⅱ. The results showed that differences between structure characteristics of bird communities at different green belts, such as the biodiversity, the evenness and the similarity, were prominent, and plant species, plantation structures and bird biodiversities were closely related. The results implicated that returning environments to their natural states, improving space differences and reducing interferences from human beings would increase biodiversities and densities of the bird communities. Based on the results, suggestions on selecting and arranging of trees in greenbelts and daily management of the greenbelts were brought forward.

Key words: bird community, biodiversity, green belt, Beijing