河北低平原以黑龙港地区为主体,包括广大冲积平原和滨海平原。海拔低于50米,土类以潮土、盐土为主,间有沼泽土,水稻土和风沙土。成土母质以河流沉积物为主,壤质、粘质、沙质俱全,在地面呈带状分布,于土体成层状排列。面积占全省四分之一以上,耕地占全省三分之一以上,是粮、棉、油重要种植区,有鸭梨、小枣、蜜桃诸名产。历史上旱、涝、碱、薄障碍农业生产。近期由于治理海河,发展机井,旱、涝、碱 Hebei low plain to Heilongjiang area as the main body, including the vast alluvial plain and the coastal plains. Below 50 meters above sea level, the soil is dominated by alluvial soil and salty soil with swamp soil, paddy soil and aeolian sand. Soil-based parent material to the river sediments, loamy, mucilaginous, sandy taste, was banded in the ground distribution, layered arrangement in the soil. It occupies more than one fourth of the province’s total area. Arable land accounts for more than one third of the province’s population. It is an important planting area for grain, cotton and oil, and is famous for producing pear, jujube and peach. History of drought, waterlogging, alkali, thin barriers agricultural production. Recently due to the governance of the Haihe, the development of wells, drought, waterlogging, alkali