importance of botanical garden
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Plants are universally recognized as a vital part of the world’s biological diversity and an essential resource for the planet. In addition to the small number of crop plants used for basic food and fibres, many thousands of wild plants have great economic and cultural importance and potential, providing food, medicine, fuel, clothing and shelter for vast numbers of people throughout the world. Plants also play a key role in maintaining the planet’s basic environmental balance and ecosystem stability, and provide an important component to the habitats for the world’s animal life.
At present we do not have a complete inventory of the plants of the world, but it is estimated that the total number may be in the order of 300,000 species. Many of these species are in danger of extinction, threatened by habitat transformation, over-exploitation, alien invasive species, pollution and climate change. The disappearance of such vital and large amounts of biodiversity poses one of the greatest challenges for the world community: to halt the destruction of the plant diversity that is so essential to meet the present and future needs of humankind.
Plant conservation, long the poor relation of the conservation world, has started to come into its own since the rise of conservation biology as a recognized discipline in the 1980s. Plant conservation, and the heritage value of exceptional historic landscapes, was treated with a growing sense of urgency. Specialist gardens were sometimes given a separate or adjoining site, to display native and indigenous plants.
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