一河北省张家口专区南部,浅山丘陵连绵,仅有耕地700万亩,丘陵区耕地面积占50%。这个地区的自然特征是,背山面水,地面倾斜,土质瘠薄,十年九旱;间歇性沙河很多,暴雨洪水涨发,雨过便成干河,地下水埋藏较深,不仅农田缺水,而且大部地区人畜饮水也很困难。 A Zhangjiakou area in southern Hebei Province, rolling hills and hills, only 7 million mu of arable land, hilly land area of ​​50%. The natural characteristics of this area are the mountains and rivers, the slopes of the ground, the infertile soil, and ten years of drought. There are many intermittent Shahe River. Rainstorms and floods have become increasingly dry and the buried groundwater is deep. Not only are farmland short of water but also People and livestock in most areas drinking water is also very difficult.