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甘肃河西走廊地区,分布着大面积的春潮地。春潮地即冬季土层蓄水太多,春季地表返潮,土壤阴湿,重者地表出水,表层盐分含量也增多。結果推迟春耕播种,甚至弃耕,同时盐分危害作物正常生长,降低产量。根据上述情况,可采取以下几种措施予以改善:1.改进灌水制度。加强秋灌、提早冬灌,旣有利于土壤脱盐,又减少了冬季土层蓄水过多
Gansu Hexi Corridor area, the distribution of a large area of spring tide. Spring tide that the winter soil water storage too much spring back to the surface moisture, soil moisture, heavy surface water, surface salt content also increased. As a result, the spring planting was postponed, or even abandoned. At the same time salt could endanger the normal growth of crops and reduce the output. According to the above situation, we can take the following measures to be improved: 1. To improve the irrigation system. Strengthen autumn irrigation, early winter irrigation, 旣 conducive to soil desalination, but also reduce the excessive storage of soil in winter