中文摘要：

在有盐的水的沟灌溉下面的土壤和水损失的减小对环境保护和农业生产重要。这研究的目的是决定 polyacrylamide (PAM ) 的效果在有盐的水的模仿的沟灌溉下面的土壤渗入和侵蚀上的申请。Polyacrylamide 被以 1.5， 7.5，和 15.0 mg L1 的率在灌溉水里溶解它或分别地以 0.3， 1.5， 3.0，和 6.0 g m2 的率在土壤表面上作为粉末散布它使用。测试灌溉水的电解质集中是 10 和 30 mmolc L1，它的钠吸附比率(SAR ) 是 0.5， 10.0，和 20.0 (mmolc L1 ) 0.5。提取的水为灌溉水质量被用作控制。结果显示电解质集中和 SAR 通常显著地没在 PAM 申请以后影响土壤和水损失。渗入率和全部的渗入体积随 PAM 申请率的增加减少了。在两个方法的 Polyacrylamide 申请显著地减少了土壤侵蚀，而是 PAM 申请率显著地没影响它。解决方案 PAM 应用程序在比粉状的 PAM 应用程序控制土壤侵蚀是更有效的，但是前者比后者对土壤渗入施加了更大的不利影响。在一样的全部的数量下面，粉状的 PAM 应用程序导致了 38.2%139.6% 更大的渗入体积但是比解决方案 PAM 应用程序大的 1.33.4 次的土壤团损失。

英文摘要：

The reduction of soil and water losses under furrow irrigation with saline water is important to environmental protection and agricultural production. The objective of this study was to determine the effect of polyacrylamide （PAM） application on soil infiltration and erosion under simulated furrow irrigation with saline water. Polyacrylamide was applied by dissolving it in irrigation water at the rates of 1.5, 7.5, and 15.0 mg L^（-1） or spreading it as a powder on soil surface at the rates of 0.3, 1.5, 3.0, and 6.0 g m^（-2）, respectively. The electrolyte concentration of tested irrigation water was 10 and 30 mmolc L^（-1） and its sodium adsorption ratio （SAR） was 0.5, 10.0, and 20.0 （mmolc L^（-1））^0.5. Distilled water was used as a control for irrigation water quality. Results indicated that the electrolyte concentration and SAR generally did not significantly affect soil and water losses after PAM application. Infiltration rate and total infiltration volume decreased with the increase of PAM application rate. Polyacrylamide application in both methods significantly reduced soil erosion, but PAM application rate did not significantly affect it. The solution PAM application was more effective in controlling soil erosion than the powdered PAM application, but the former exerted a greater adverse influence on soil infiltration than the latter. Under the same total amounts, the powdered PAM application resulted in a 38.2%-139.6% greater infiltration volume but a soil mass loss of 1.3-3.4 times greater than the solution PAM application.