Effect of environmental changes in campus on its bird diversity

The birds in Guangxi University were Investigated from December 2005 to January 2006 and December 2006 to January 2007.The result showed that: the species and amounts of birds in December 2005 and January 2006 were more than in December 2006 and January 2007.The species of birds decreased from 50 to 40, and the amounts of birds decreased from 6648 to 5628.According to the environmental changes in Guangxi University,we discussed the relationship between environmental changes and bird diversity,some suggestions for a human settlement achieving its sustainable developing were also proposed.