黑龙港流域东倚渤海,地势低平,地下水位较高,土壤类别多为潮土,有不同程度的盐碱化。春季东南季风为沂蒙山阻隔,春早已成规律,为华北平原的干旱中心。春季由于极地冷气团活动频繁,气温复杂多变。加之地多人少,生产基础薄弱,耕作粗放。概括起来是“旱、薄、盐碱、粗”,受自然条件影响较大,小麦产量低而不稳。我省约有 The east coast of the Heilongjiang River Basin, Bohai Sea, low-lying, high groundwater level, mostly soil types of Chao soil, with varying degrees of salinization. Spring southeast monsoon Yimeng Mountain barrier, spring has become a rule, for the North China Plain drought center. Due to the frequent activities of polar cold air mass in spring, the temperature is complicated and changeable. In addition to many people less, weak production base, extensive farming. To sum up, “drought, thin, saline, coarse,” a greater impact by the natural conditions, low and unstable wheat yield. About our province