摘要
Tropical plants in the world include 2/3 of higher plant species,covering a large number of cash crops and their wild relatives.They have extremely rich genetic diversities and provide humans with food and beverages,energy,medicine,wood,fuel,various industrial raw materials,etc..They also provide necessary oxygen,water,living environment for other animals and plants,having irreplaceable functions on the health of the ecosystem.Due to the fragility of tropical forest ecosystems caused by human activities,it is necessary and urgent to protect the rare and endangered tropical plants and their habitats.
