Composition for protecting rare plants

Over the years, the number of many precious plants is rapidly decreasing, becoming rare species, and some have even become extinct. According to statistics, there are about 20,000 to 25,000 species of higher plants on the verge of extinction in the world, accounting for about 10% of the total number of higher plants. There are about 20,000 species (including varieties) of higher plants abroad. According to the statistics of 1975, there are 76 endangered plants1species, 238 threatened plants 100 extinct plants100 species, accounting for 2099 species, accounting for more than 10% of the total number of foreign plant species. Endangered species, threatened species and extinct species in a foreign archipelago have accounted for 49.4% of the total plant species in the whole island. China is one of the countries rich in plant resources, and there are still many ancient tree species, such as Ginkgo biloba, Metasequoia glyptostroboides, Davidia involucrata, Prunus, Liriodendron chinense and Taiwania flousiana, which are known as "living fossils". However, their natural distribution range is relatively narrow, and some plants are not much left, which has been seriously threatened. Known as the "refuge" of ancient tree species, Shennongjia, Hubei Province, has rare and precious tree species on the verge of extinction. Call for attention to the protection of natural environment and natural resources and take effective measures.