坎儿井位于新疆吐鲁番、哈密地区 ,是我国古代三大工程之一。古代吐鲁番各族人民为了把北部天山渗入地下的雪水引来滋润这片戈壁沙漠中的绿洲 ,同时又避免沿途的高温蒸发 ,发明了这种将挖掘明渠、暗渠与竖井和涝坝相结合的坎儿井。很久以来 ,坎儿井一直是当地发展农牧业生产和 Karez well is located in Turpan, Hami, Xinjiang, China is one of the three major ancient projects. In order to moisten the oasis in the Gobi Desert and to avoid the high temperature evaporation along the way, the people of all ethnic groups in ancient Turpan invented this kind of karst that combined the digging of open channels and culverts with shafts and dams . For a long time, Karez has been the local development of agriculture and animal husbandry production and