松嫩平原盐渍土地下水盐分动态变化及改良措施

Study on The Issue of Underground Water in Soda-saline Soil of Songnen River plain

苏达盐渍土动态变化规律与气候和土壤季节性冻融过程密切相关,土壤融冻加速苏达盐渍土碱化作用,而微地形变化及人为活动直接控制土壤水溶性盐类运动方向和速度,所有这些严重影响着作物的生育,本文着重阐述耕地土壤融冻过程和微地形对苏打盐渍土水盐运动的影响及改良措施。

The regulation of dynamic change of soda-saline soil has a close relation with climate and the seasoning process of soil freezing and thawing Soil freezing and thawing will accelerate the process alkalization for the soda-saline soil The topographic changes in small area and the human activity will directly control the direction and the speed of water-soluble salts of soil. All of those seriously affect crop growth and development. This paper has mainly explained the process of soil freezing and thawing and the change of landform in small area on the effect of the movement of water and salts of soda-saline soil and the measures of amelioration.