RESEARCH OF THE GEOGRAPHICAL LIFE OF THE PLANT AREA PHU NINH DISTRICT, PHU THO PROVINCE

Abstract

Plant geography is one of the most important factors when studying a flora or any biota. Therefore, the analysis of geographic factors of the flora as a basis for the conservation of biodiversity values and endemism in Phu Ninh district, Phu Tho province. Research results show that the number of species has been recorded is 764 species, we study the geographic distribution and arranged into 19 elements of plant geography. Flora of Phu Ninh district has an endemicity of 75 species, accounting for 9.82% of the total 764 species of the flora. Particularly, the Tonkin endemicity has 37 species, accounting for 4.84% of 35 genera, accounting for 6.86% of the total of endemic and 31 families, accounting for 20.13% of the total number of endemics. Elements of Indochina, tropical Asia, and India are all elements of abundant species. This is similar to the flora of Vietnam. Modern, imported and plant species have 58 species, accounting for 7.59% of total species. The diversity of geographical factors speaks to the diversity and scientific value of Phu Ninh flora.