内蒙古翁牛特旗栗钙土的持水保水特性及供水特征研究

Water Provision and Retention Characters of Ligan Soil in Ongniud Qi in Inner Mongolia

对内蒙古翁牛特旗栗钙土的持水保水特性及供水特征进行了研究，表明：栗钙土土粒较粗，孔性较强，剖面质地较轻且分布均一；土壤持水保水性能较强且剖面层次差异不大；土壤水分移动性能强，释水能力强，抗旱性差。精耕细作、疏松表层、保持水土、充分接纳雨水就地入渗增大土壤水库贮水，可有效地改善农田土壤和作物水分条件。

This paper deals with the water provision and retention characters of ligan soil of Ongniud Qi in Inner Mongolia. The results showed that ligan soil has the characteristics of large particle size, porosity, light profile texture and uniform distribution, strong soil water retention and little difference in profile layers, strong ability for water movement and low ability for drought resistance. Practising intensive farming and loosening upper soil layer could hold rainfall water and make it penetrate into soil effectively, which could improve soil quality and crop moisture condition.