The establishment of the National Botanical Garden in Beijing, the capital, is a common practice in the world, which means that the national plants are highly ex situ protected and are the main representatives of the country. Beijing's geographical environment has the advantage of establishing a national botanical garden. Beijing has a suitable climate and many wetland parks. Plants with temperate climate, subtropical climate and even tropical climate, plants with low temperature and drought tolerance, and plants in wetland parks can all grow and develop here. According to historical and humanistic standards, the plants of China Academy of Sciences have all the top research energy of China Plant Science. At the same time, the North and South Botanical Gardens merged to create a national botanical garden, which can be used as the core of scientific research, popular science propaganda and exhibition. With the help of the Institute of Botany, Chinese Academy of Sciences, the South Garden is led by scientific research and experiments, focusing on the scientific research of basic plant disciplines, the maintenance of species diversity and the research and development of key technical products for the utilization of plant resources. With the help of the capital construction of Beijing Botanical Garden, the North Garden is dominated by ex-situ collection, genealogy and exhibition, focusing on plant application research, breeding of rare and endangered plants, collection and exhibition of horticultural plants, scientific research and learning and training of gardening techniques. At present, the National Botanical Garden has 1.5 million species of ex situ conservation plants, which is the only botanical garden in China with three flagship greenhouse populations in the world. The focus of the plan is to collect more than 30 million species of local cultural plants in the three northern regions, symbolic plants in the north temperate zone, symbolic plants in different geographical regions around the world and rare and endangered plants, and collect 5 million species of symbolic plant specimens from five continents, and complete 20 characteristic special gardens, 7 exhibition halls for plants with systematic software evolution and 1 original ecological plant nursery area. The maintenance of wild plant resources mainly includes in-situ protection and ex-situ maintenance, and botanical garden is the primary place for ex-situ maintenance. ? Function of National Botanical Garden: 1. The construction of the National Botanical Garden provides a new "experimental field" for strengthening the biodiversity protection system and capacity, and promotes the coordination, systematicness and integrity of biodiversity protection and management. It is worth noting that this kind of work is complex, challenging and exploratory, and it is difficult to do it overnight.

2. South China National Botanical Garden was established on the basis of south china botanical garden. Prior to this, south china botanical garden not only undertook the functions of scientific research, popular science, exhibition and ex-situ conservation entrusted by the National Botanical Garden, but also undertook the management functions of Dinghushan National Nature Reserve and postgraduate training and teaching functions, which may lead to different functions after the establishment of the National Botanical Garden. ? To sum up, the State Council approved where to establish the National Botanical Garden, in Beijing. It is recommended that relevant web pages know its details.

Legal basis: At the15th Leaders' Summit Forum of the Convention on Biological Diversity, China explicitly proposed to operate the service system of national botanical gardens such as Beijing and Guangzhou.