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中文摘要：
通过大田试验,研究了施用脱硫废弃物改良宁夏银北地区不同类型盐碱地种植沙枣的效果。结果表明：脱硫废弃物改良碱化土第3年后土壤全盐、碱化度、pH分别降低了46.43%、42.63%和17.20%,改良后种植沙枣的成活率提高了104.64%,改良前后具有极显著差异（P〈0.01）;脱硫废弃物改良盐碱土第3年后土壤全盐、碱化度、pH分别降低了38.96%、25.71%和7.95%,改良后种植沙枣的成活率提高了91.36%。同时,发现脱硫废弃物改良碱化土较改良盐碱土种植沙枣效果显著（P〈0.01）。
英文摘要：
A field experiment was carried out on planting Elaeagnus angustifolia on different types of saline soils being ameliorated by desulfurization waste from power station（mainly gypsum） in northern Ningxia,China.The results showed that in the third year after the soil amelioration,the content of total salt,exchangeable sodium percentage,and pH declined by 46.43%,42.63% and 17.20%,respectively for alkaline soil,and by 38.96%,25.71% and 7.95%,respectively for alkaline saline soil.The survival rate of E.angustifolia increased by 104.64% for the former,and 91.36% for the later.Significant differences were observed before and after amendment of two types of soil（P〈0.01）.
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