Studies on Flora Alien Invasive Plants and Disastrous Mechanism in Beibei, Chongqing
According to the filed investigation of Beibei and Literature review it indicates:①There are 45 species of flora alien invasive plants which belong to 35 genera and 20 families,and invasive plants have caused serious harm to crop production,orchards,lawns,landscape and biodiversity in Beibei.②The flora shows an obvious tropic characteristics,and most of invasive plants are produced in America.③Disaster mechanism of the invasive plants mainly in the simple,convenient traffic fragile habitats and tropical flora environment etc.