Experimental study on characteristics and forecasting of soil water and salt movement affected by redistribution

Redistribution is one of the water recycling processes in the field. The related study on water and salt movement characteristics is of much importance for the reclamation and development of salinized soil. According to the data obtained by using gamma ray attenuation method, the dynamic water and salt movement characteristics of salinized soil in Xingjiang province during redistribution proccess was described. Based on the experimental data of salt distribution, the exponential function of soil salt content and concentration with depth were established. Moreover, the soil water content profile was predicted using soil water characteristic curve and compared with that of measured data, the results show that it can predict water movement accurately.