Simulation Study on Effect of Irrigation Water of Different Types on Soil Alkalinity

Tu-mo-chuan plain located in the semi-arid area has plenty of saline or alkaline land.Simultaneously,the salinization or alkalinization of soil tends to aggravate.There are different perspectives concerning whether the phenomenon is related to the types of irrigation water.So the relationship between the soil alkalinity and different types of irrigating water was studied.The results show that irrigated by different types of non-alkaline water,the soil alkalinity increased in different degrees.