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Study on the Invasive Alien Plant in Kaifeng

ZHANG Gui-bin (College of Environment and Planning, Henan University, Henan Kaifeng 475001,China)  
This paper discusses the invasive alien plants in Kaifeng based on investigating and referring to the related literatures, including their composition of flora, mechanism of invasion, harm , prevention and control , and so on .It is discovered that there are 24 species of invasive alien plant in the area , most of which come from America and Europe, along with various activities of humanity, whose wide distribution in Kaifeng is the integrated result of the powerful reproductive capacity, ecologic adaptability and spreading ability of themselves as well as suitable conditions here .These plants have brought about harm to farming and forest of Kaifeng , so we must take some active measures to control them and prevent others invading, meanwhile we try to use them as mach as we can.
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