Researching objectives: Evaluating the diversity and using values of essential oil plants at Ben En National Park, Thanh Hoa province; determining the content and composition of essential oils of some plant species; determinating the anti-mosquito and anti-microbial activities of essential oils of Zingiber zerumbet (L.) Smith. | MINISTRY OF EDUCATION VIETNAM ACADEMY OF AND TRAINING SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY HOANG VAN CHINH RESEARCHING AND EVALUATING ON THE RESOURCES OF PLANT CONTAING ESSENTIAL OILS AT BEN EN NATIONAL PARK THANH HOA PROVINCE PROPOSING THE CONSERVATION MEASURES AND RATIONAL EXPLOITATION SUMMARY OF PHD DISSERTATION Major Botany Code Supervisors 1. Assoc. Prof. Dr. Tran Minh Hoi 2. Dr. Do Ngoc Dai HANOI 2019 This dissertation has been carried out at The Graduate University of Science and Technology - Vietnam Academy of Science and Technology Supervisors Assoc. Prof. Dr. Tran Minh Hoi Dr. Do Ngoc Dai The 1st Reviewer The 2nd Reviewer The 3rd Reviewer The dissertation will be defended at the Board of Examiners of Graduate University of Science and Technology Vietnam Academy of Science and Technology at . on . The thesis can be found at the National Library of Vietnam and Library of Graduate University of Science and Technology INTRODUCTION 1. The urgency of the thesis topic Vietnam is located in the monsoon tropical areas with a great range of terrains soil types landscapes and different climate characteristics among regions leading to favorable basis for biodiversity of species composition and species richness. Vietnam is ranked 16th in the world in terms of diversity of biological resources. In the quot General Flora of Indochina quot and subsequent additional episodes about 240 families with more than 7 000 vascular plants were described and recorded. In recent years that number is predicted could reach 15 000 species by many botanists. Currently about 13 000 species of vascular plants have been recorded of which about 660 essential oil plants species accounting for about of the total number of known species are. The known essential oil plants belong to 357 genera accounting for about of total genera and 114 families of vascular plants accounting for of the total in the flora of Vietnam. The families which .
