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Glacier growing
Glacier growing, artificial glaciation or glacier grafting,〔Khan, S. (2005): ''Glacier Grafting'', The Aga Khan Rural Support Programme 16, Skardu, Pakistan〕 is a practice carried out in the Hindu Kush and Himalaya regions aimed at creating small new glaciers to increase water supply for crops and in some cases to sustain micro hydro power. In order to encourage the growth of a glacier local farmers acquire ice from naturally occurring glaciers, and carry it to high altitude areas where the ice is put inside a small cave dug out in a scree-slope. Along with the ice other ingredients such as water, salt, sawdust, wheat husks and charcoal are also placed at the site.〔Tveiten, I. (2007): ''Glacier Growing - A Local Response to Water Scarcity in Baltistan and Gilgit'', The Norwegian University of Life Sciences, Master of Science Thesis ((Abstract, pdf 65 Kb ))〕 The use of glacier grafting is an old skill of the mountain farmers of Baltistan and Gilgit, where it is used for irrigation purposes since at least the 19th century. This technique was described by Lieutenant David Lockhart Robertson Lorimer (1876–1962) in the 1920s. Allegedly glacier grafting also has been used to block mountain passes.〔(Inayatullah Faizi: ''Artificial glacier grafting: Indigenous knowledge of the mountain people of Chitral'', Asia Pacific Mountain Network (APMN) Bulletin 8, Nr. 1. 2007, pdf, 600 Kb ))〕
==Background==
In the Northern Areas of Pakistan water is the limiting factor of agriculture and many farmers experience scarcity of water in late fall - a period critical to the maturation of crops. Farmers living in watersheds without glaciers are especially vulnerable since they largely depend on snowmelt for irrigation, in contrast to other areas where glaciers are a reliable source of water. In such communities glacier grafting is often attempted as a means to encourage the growth of new glaciers and thus ensure the existence of water resources.
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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