宁夏地区地势由南向北傾斜,愈北愈平緩,农业生产分山区及引黄灌区两个体系。全区耕地面积1,350多万亩,其中山区966多万亩,占74％;灌区357多万亩,占26％。山区是西北黄土高原的一部分,山岭重迭,沟壑縱横,并又可分为阴湿区、一般干旱区及干旱区三类。土质以黃土为主(約占70％),黄砂土、砂土、黑黄土和粘土次之。作物以小麦、糜、 Ningxia terrain from south to north tilt, the more the more the more North, agricultural production sub-mountain and the Yellow River irrigation system. The area of ​​more than 1,350 acres of arable land, of which more than 9.66 million mu of mountains, accounting for 74%; irrigation area of ​​more than 357 mu, accounting for 26%. Mountain is a part of the Northwest Loess Plateau, overlapping mountains, ravines aspect, and can be divided into wet area, the general arid area and three types of arid areas. Loess soil dominated (about 70%), yellow sand, sand, black loess and clay followed. Crops to wheat, Mi,