The waterlogging,high water table and saline-alkaline disasters are the main constraint factors of agricultural production in many regions in China.

• 涝渍盐碱灾害是我国不少地区农业生产发展的主要障碍,提高防御涝渍盐碱灾害的能力,对加速发展农业生产有着重要的现实意义和战略意义。