摘要
本试验主要研究了作物秸杆表面覆盖、垂直覆盖（混施）和隔层对土壤水盐运动的影响。研究结果表明：表面覆盖秸析可明显地抑制土壤蒸发，保持土壤水分，提高入渗淋盐效果，防止耕层积盐，是盐碱地管理中值得推广应用的农艺措施。秸秆隔层能有效地阻隔水盐上行，防止耕层盐化，在高水位盐渍化区可采用此种方法。但该法会使隔层上部土壤蒸发缺水，应配合覆盖保墒措施。
The experiment studied the effects of residue used as surface mulch,mix with soil and a separate horizon in soil profile on soil water and salt movement.The results indicate:residue surface mulch can evidently decrease soil evaporation,preserve soil moisture,increase rain infiltration and salt leaching and avoid cultivated horizon salinization.Residue separate horizon can effectively prevent groundwater and salt up in high watertable saline area. But the method can make drought in up soil horizon.It should be cooperated with surface cover measures.
