我国古代的劳动人民为了在沙漠中收集高山上融化的雪水,发明了一种独特的集水方式,这就是坎儿井。它由竖井、地下渠道、地面明渠和“涝坝”(小型蓄水池)四部分组成。适用于山麓、冲积扇缘地带,截取地下潜水灌溉农田。他们是这样做的:在高山雪水流过的地方,每间隔一定距离,打一口深浅不等的竖井,然后再依地势高低在井底修通暗渠,沟通各井,引水 In order to collect snow melted in the mountains in the desert, the ancient working people in China invented a unique catchment method, which is called Karez. It consists of shaft, underground channels, surface open channel and “waterlogging dam ” (small reservoir) in four parts. For foothills, alluvial fan margin zone, interception of underground irrigation farmland. They do the following: In the places where the snow flows in the mountains, at intervals, take a long shaft of different shades, and then repair the underdrain at the bottom of the well according to the terrain, communicate the wells,