在内蒙古科左后旗东南沙地中,起起伏伏的黄沙带曲折相夹着一个长百里,平均宽度二里余的长形甸子,甸子中间流淌着一条河,当地人称之为地河。地河似一条弯曲的绸带,系着川中一个个大小湖泊,调节着流域内的水量。在雨季大部分降水潜入地下,一部分则促使河水上涨,平时靠沿程储存的水侧渗成流,所以川中甸子得到 In the southeastern sand of Kezuohou Banner in Inner Mongolia, the ups and downs of the Yellow Sand Zigzag sandwiched a long Barry with an average width of more than two miles of long shaped Dianzi. There is a river in the middle of the Dianzi, which the locals call the Dadi . Rivers like a curved ribbon, tied to a large lake in Sichuan, regulating the waters within the basin. Most of the precipitation during the rainy season sneaked into the ground, while some caused the river to rise. Usually, the water infiltrated into the river was stored along the route,