An university student investigates plant diversity in Hefei Park

As a national garden city, Hefei has many parks, which is also a good place for everyone to relax But do you know which parks have the most vegetation and which are the most similar? Recently, students from Anhui University found that the botanical garden has the most abundant vegetation species Li Peng, who loves plants, made a plant identification manual on campus of Anhui University when he went to university He spent one and a half years with his classmates to investigate the 5487 arboreal plants cultivated in the school He knows exactly what flowers and grass are in which corner This time, Li Peng extended the investigation to the whole city of Hefei The research on investigation and optimal allocation of plant communities in park green space of Hefei city is his graduation project In order to get an accurate conclusion, Li Peng investigated eight popular parks in Hefei, including Emerald Lake scenic spot, Dashushan Forest Park, Yinhe Park, Xiaoyaojin Park, Xinghua Park, Yaohai Park, ecological park and botanical garden The vegetation of the botanical garden is the most "characteristic" In this survey, there are 80 species of ground cover plants, belonging to 40 families and 67 genera The tree species are osmanthus, Magnolia, camphor, cedar, Sapium, palm, maple, weeping willow, crape myrtle and Japanese late cherry according to the order of application frequency from high to low Shrub plants: Pittosporum, safflower, Photinia, Campanula, Pyracantha; herb plants: Ophiopogon japonicus, clover, etc After investigation, Li Peng also found that in the eight parks, the proportion of deciduous trees and evergreen shrubs exceeded 60% Yaohai Park and ecological park had the highest similarity of plant species, with a similarity coefficient of 40% That is to say, 40% of plant species in the two parks were the same The similarity between botanical garden and other parks is the lowest, with an average of 19.73% "This shows that botanical garden has its own characteristics in the application of plants, not limited to the application of common cultivation, with high diversity and good diversity of plant species." Li Peng told reporters In addition, Li Peng also found that the diversity of plant species in botanical garden, ecological park and Xinghua Park was the best, while that in Jadeite Lake Scenic Area and Dashushan Forest Park was the most monotonous Most barbecue stalls sell "pork" with sheep's heads Unlike Li Peng, whose classmate Xue Chun has traveled all over Hefei's barbecue stalls The debate about real and fake mutton kebabs has a long history, but Xue Chun has set a precedent in the province by using high technology such as gene detection to identify mutton kebabs Simply put, Xue Chun took the bought mutton kebab to the school laboratory to extract genes By comparing with the genes of chicken, sheep and pig in the gene library, we can know whether the mutton kebab is true or false The accuracy of this method is 100% Results among the 66 "mutton kebabs" collected by Xue Chun, only 19.7% were mutton, 68.2% were pork, 6.1% were chicken, 4.5% were duck and 1.5% were beef 89.1% of the 1 yuan mutton kebab sample was pork kebab, and 75% of the 2 yuan mutton kebab sample was pork kebab.