Large-scale Introduction Of Neem Yunnan's Biodiversity And Research

Recently the biological reason to the change of environment has becomed the main affection day by day. As a specal biological invasion, plants introduction is increasingly wrecking our eco-system screen and our biological security. It has not only led to the decrease of precious species, but also has affected the development of biological economy in 21 century. In Yunnan province there are two ways of biological invasion, the one is natural way, the other is that widely and blindly introduced exotic plants in the biological economy. Widely and blindly introduced exotic plants has been the main threat to Yunnan province's industry of biology. This paper has analyzed the primary problems in the development of biological economy according to the introduction of Azadirachta lndiea A.Juss in Yunnan province. It has also posed several remedied measures in order to reduce the loss duing introducing exotic plants. It is scarce to the assessment of plants introduction. It takes quantitative analysis mostly before. This paper tries to analyze plants introduction from quantity and quality.In order to protect its biodiversity, people from different social status all over the world have paid close attention to it because Yunnan province is located in the "Golden Cross-shaped Belt" of biodiversity in the world. Yunnan province has abundant and weak biodiversity. The major characteristic of Yunnan province's environment is its biodiversity. To protect Yunnan's eco-system is formidable and important.Yunnan province has endured tremendous costs in introducing exotic plants in the development of biological economy. From rubber introduction, eucalyptus introduction to Azadirachta lndiea A.Juss introduction have all affected the eco-system and biological industry not only in the near futue but also in the long period of time. This paper has investigated Azadirachta...