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living root bridges
Living root bridges are a form of tree shaping common in the southern part of the Northeast Indian state of Meghalaya. They are handmade from the aerial roots of living banyan fig trees, such as ''Ficus elastica''〔(【引用サイトリンク】title=Living Root Bridge in Laitkynsew India )〕 by the Khasi people and War Jaintia peoples of the mountainous terrain along the southern part of the Shillong Plateau.
The pliable tree roots are made to grow through betel tree trunks
which have been placed across rivers and streams until the figs' roots attach themselves to the other side. Sticks, stones, and other objects are used to stabilize the growing bridge〔 This process can take up to 15 years to complete.〔Baker, Russ. "(Our Environment )," ''Business Insider'', Oct. 6, 2011〕 The useful lifespan of any given living root bridge is variable, but it is thought that, under ideal conditions, they can in principle last for many hundreds of years. As long as the tree they are formed from remains healthy, they naturally self-renew and self-strengthen as their component roots grow thicker.
== Locations of Living Root Bridges ==
Living Root bridges are known to occur in the West Jaintia Hills district and East Khasi Hills district.〔 In the Jaintia Hills, examples of Living Root Bridges can be found in and around the villages of Shnongpdeng, Nongbareh, Khonglah, Padu, and Kudeng Rim.〔 In the East Khasi Hills, living root bridges nearby Cherrapunji are known to exist in and around the villages of Tynrong, Mynteng, Nongriat, Nongthymmai, and around Laitkynsew. East of Cherrapunji, examples of living root bridges are known to exist in the Khatarshnong region, in and around the villages of Nongpriang, Sohkynduh, Rymmai, Mawshuit, and Kongthong. Many more can be found near Pynursla〔 and around the village of Mawlynnong.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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