中文摘要：

为阐明水质对咸水滴灌土壤盐分淋洗过程的影响,通过室内土柱试验研究了咸水和淡水对咸水滴灌不同区域土壤盐分的淋洗过程及脱盐效果。结果表明,淡水淋洗的入渗速率明显高于咸水;咸水、淡水淋洗后咸水滴灌不同区域土壤含盐量均大幅下降,均可达到良好的脱盐效果;不同区域咸水滴灌土壤滤出液电导率（EC）均呈＂快速上升-快速下降-趋于稳定＂的变化趋势,而对咸水滴灌风干土淋洗的滤出液EC却呈先快速降低后逐渐趋于稳定的变化过程;从淋洗滤出液到达稳定电导率的体积来看,咸水对咸水滴灌土壤盐分整体淋洗效果优于淡水。

英文摘要：

To clarify the effect of water mineralization on salt-leaching process of saline drip-irrigated soils,soil column experiments were carried out to study the salt-leaching process and leaching effect of water mineralization on saline drip-irrigated soils of different area around the emitter.The results indicated that soil infiltration rate of saline water was obviously higher than that of fresh water.Soils of different areas around the emitter under saline drip-irrigation sharply desalinized after leaching with saline water and fresh water.All EC of the infiltrates of different areas around the emitter sharply increased first,then sharply decreased,and then tended to be stable,but the infiltrate EC of air-dried soil under saline drip-irrigation leached sharply decreased and then tended to be stable.From the infiltrate volumes of EC becoming stable,it can be concluded that the leaching effect of saline water on soil salt was better than fresh water.