question_answer 2)

Find out more about any one traditional method of building dams and irrigation works.   

Answer:

In Meghalaya, an ingenious system of tapping stream and springwater by using bamboo pipes is used to irrigate plantations of betel leaf or black pepper crops. The tribes of the Khasi and Jaintia hills have been using this from the last 200 years. About 20 litres of water enter the bamboo pipe system per minute and may travel almost a kilometer to finally reach the plants near its roots. Bamboo pipes are used to take water from perennial springs on the tops of the hills to the plantations by using gravity. Reduced channel sections and diversion units are used at the last stage of water application.