A STUDY ON THE SPECIES COMPOSITION AND FLORA OF PLANT IN MAIXIU NATIONAL FOREST PARK
To comprehend the distribution and species diversity of plants in Maixiu National Forest Park,a combination of field collection of plants and literature analysis was used to analyze the basic characteristics of the plant flora.The results showed that:① Rich variety of plants,with 744 species in 290 genera and 68 families of vascular plants,including 21 species in 11 genera and 7 families of ferns,9 species in 4 genera and 3 families of gymnosperms,and 714 species in 275 genera and 58 families of angiosperms.② The plant life forms are diverse,with 28 species of trees,61 species of shrubs,4 species of subshrubs,645 species of herbs,and 6 species of vines;herbs are the dominant life form.③ Small families accounted for the largest proportion,accounting for 32.35％ of the total number of families.④ In terms of the geographic distribution of families,there are 5 types and 5 variants,with cosmopolitan families being the most numerous,accounting for 54.10％ of the total number of families.⑤ In terms of the geographic distribution of genera,the North Temperate Zone is the most widely distributed,accounting for 1/3 of the total genera;genera with Cosmopolitan,Old World Temperate Zone,and North Temperate and South Temperate(All Temperate zone)disjunct distributions are also relatively numerous,all accounting for more than 10％ of the total number of genera;there are 9 genera endemic to China.
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