利用甘汞电极法测定了干旱区绿洲土壤的p H值,结果表明:绿洲土的p H值介于7.64到8.74之间;土壤粒径几乎未对p H值有影响;种植不同作物会对p H值有较大的影响,种植芹菜的土壤p H低于种植油菜的土壤p H;往土壤中添加不同重金属会对p H值有较大的影响,锌对绿洲土的p H影响大于镉。 The p H value of the oasis soil in the arid region was measured by calomel electrode method. The results showed that the p H value of the oasis soil was between 7.64 and 8.74, and the soil particle size had little effect on the p H value. p H value had a greater impact on the planting of celery soil p H than rape planting soil p H; addition of different heavy metals in the soil p H value will have a greater impact, zinc o soil p H greater than cadmium.