Geographical Element Analysis on Herbaceous Floristic in Campus——A Case Study of Guangdong AIB Polytechnic College
[Objective] The aim was to understand the geographical element of herbaceous floristic in Guangdong MB Polytechnic College.[Method] The distribution of herbaceous floristic in Guangdong AIB Polytechnic College was investigated and analyzed by analysis methods of geographical components of flora.[Result] There were 170 species of herbaceous plants in Guangdong AIB Polytechnic College (North Campus),belonging to 51 families and 128 genera.The floristic composition and distribution of flora on campus geography herb showed that campus herbs had obvious tropical,among them the tropical families accounted for 91.3%,and the tropical genera accounted for 87.3%.The tropical distribution of the family (15 families) and genera (54 genera) had the largest proportion,respectively,and was between 65.2% and 53.0%.Secondly,campus herbaceous plants of angiosperms occupied a great advantage,and the gynmosperm quantity was less,only 11,accounting for 6.5%;plant dominant families and genera were Asteraceae (24 genera) and Bambusa (6).From the herb source,the Chinese native plants had 87 species,accounting for 51.2% of the total species,and had 83 species of exotic plants,accounting for 48.8% of the total species,among them 46 kinds belonged to the invasive plants,accounting for 55.4% of the exotic plants.[Conclusion] It can be seen that there are a large number of invasive plants in the campus,and their large distribution wilt affect the normal growth of many native plants,and affect the biodiversity of a region.