以22年树龄的库尔勒香梨园土壤为研究对象,进行表层覆砂试验,设置不同覆砂厚度,采用常规方法监测土壤灌水后不同时间点上的土壤含水量以及库尔勒香梨产量,分析覆砂厚度对香梨园不同时期土壤含水量和果树产量的影响。结果表明:覆砂能抑制土壤蒸发,提高土壤含水量,促进果树增产。土壤覆砂5cm处理对提高土壤保水性效果较好,但与覆砂2cm处理土壤含水量相比无显著差异。覆砂2cm处理和覆砂5cm处理的库尔勒香梨产量较不覆砂处理库尔勒香梨产量增加8.81%和11.05%。综合考虑覆砂对库尔勒香梨园土壤保水性、果实增产和改善果形特征的影响,该研究推荐库尔勒香梨园表土覆砂以2cm厚度为最佳。 Taking 22-year-old Korla fragrant pear orchard soil as the research object, the surface sand-covering experiment was carried out, the different sand-cover thickness was set, the soil moisture content and the yield of Korla pear were monitored by routine methods at different time points, Effect of pear orchard on soil water content and fruit yield in different periods. The results showed that sand dressing could inhibit soil evaporation, increase soil water content and increase fruit yield. Soil 5cm sand cover treatment to improve soil water retention effect is better, but with sand cover 2cm soil water content compared to no significant difference. The yield of Korla pear increased by 8.81% and 11.05% compared with that of the non-sand treatment Korla pear. Considering the effect of sand dressing on soil water retention, fruit yield and fruit shape improvement in Korla fragrant pear, the study recommended that topsoil sand cover of Korla fragrant pear garden was the best with 2 cm thickness.