сохранение биоразнообразия, охрана природы, красная книга, ботанические сады., Botany, QK1-989

Till the mid of the 1970’s the involving of the wild plants into cultivation was the main branch of activity of botanic gardens. The task of conservation of gene fund of native flora by botanic gardens ex-situ was put on for the first time at the session of the Council of botanical Gardens of the USSR held at Alma-Ata in 1969. There are the habitat destruction, the diminishing of density of populations, spread of alien plants, pests and diseases. Unfavorable tendencies are magnified by the changes of the climate which are recognized to be threatened for majority of the world’s flora. The urgent measures and the implement many effective conservation strategies are required. In this connection the role and significance of botanic gardens have been sharply increasing.