Investigation of invasive plants in Danzhou Campus of Hainan University

Key words: 
• Danzhou campus /
• invasive plants /
• investigation

Abstract: Invasive plants are plants that are introduced into non-native environments through human activities,which grow aggressively and spread in the natural areas,and affect plants,environments,or species in the region.An investigation was made of invasive plants growing in Danzhou Campus of Hainan University in the west part of Hainan Island during July to August 2017 to have an understanding of the invasive plants in the Campus for future control of the invasives. The Danzhou Campus falls in the tropical humid monsoonal climate and has a great variety of landscapes suitable for aggressive growth and spread of invasive plants. The investigation showed that there were51 families,152 genus and 211 species invasive plants in the Danzhou Campus,of which invasive plants of Compositae,Amaranthaceae,Gramineae and Solanaceae accounted for 12. 3%,7. 6%,7. 1% and 7. 1% respectively.Among these invasive plants,18 plant species were noxiously invasive and 30 were seriously invasive,and 91. 8%of both the noxious and the serious invasive plant species were introduced from America.