河南省砂姜黑土持水性的研究

Study on the Water Retention Capability of Shajang Black Soil in Henan Province

用土壤水分能量和形态相结合的方法,对河南省几个砂姜黑土剖面的水分特征进行了研究,结论为:心土层贮水、透水能力低下是砂姜黑土容易形成内涝的主要原因;有效水不足是限制作物产量的重要因素;加深耕作深度,改善土壤的结构状况是改良砂姜黑土水分性状的根本措施。

The method of combining the water potential and the form of soil was used to study the profile water characteristics of Shajiang black soil in Henan Province. It was coucluded that storage of much water in Shajiang black soil and poor permeability were the main causes of easy waterlogging in Shajiang black soil; the lacking of available water limited the crop output, and there fore, deeper ploughing and the improvement of soil structure could improve the water features of Shajiang black soil.