Research on magnoliaceae species geographic distribution and protect measures by using GIS of Guangdong province China

Magnoliaceae species are considered as an original angiosperm, which has had extensive distribution in the Earth history. It had acted as an important role to origin of angiosperm; and some of species of Magnoliaceae grow quickly and have great development potential to timber, planting in the cities and towns as a greening tree, making into medicine and fragrances. Owing to the forests of different region become more and more severely destroyed and fragmentized, making many Magnoliaceae species falling into threatened condition therefore, how to conserve and explore Magnoliaceae species attract people's attention. In this paper, by the GIS measure, we researched the Magnoliaceae species geographical distribution of Guangdong province China, and discussed the relation between Magnoliaceae species geographical distribution, analyzed the characteristic of different Magnoliaceae species. Based on this research, some protection measure are offered in this paper.