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本文研究了江苏省太湖地区囊水型、漏水型、爽水型、滞水型和侧渗型等5种类型水稻土的水分动态,说明了水稻土发生及其稻麦单产主要受水分影响.另从土壤剖面中游离铁、锰、粘粒分布特征来说明水稻土发生特征.稻麦产量以爽水型水稻土最高.对其它类型水稻土进行相应的改良,使水分状况达到稻麦丰产水平的要求.
In this paper, the water dynamics of five types of paddy soils, including water-in-capsule type, leaking type, saltwater type, stagnant water type and lateral infiltration type in Taihu Lake, Jiangsu Province, were studied. The results showed that the occurrence of paddy soil and the yield of rice and wheat were mainly affected by water content. In addition, the characteristics of paddy soil were characterized by the distribution characteristics of free iron, manganese and clay in the soil profile. The yield of paddy and wheat was the highest in Shuishui type paddy so that other types of paddy soil could be improved to make the water content reach the level of high yielding rice and wheat Request.