To explore the effects of soil texture

soil temperature and bulk density on movement characteristics of upward capillary water flow of saline water in soil of northwest arid region

a lab simulation experiment was conducted in sandy loam and clay loam by HYDRUS-1D. The models of ground water recharge of capillary water with soil temperature and bulk density of were built. For sandy loam

the absolute coefficient was above 0.96

RMSE was less than 0.95 cm

and the maximum relative deviation between the calculated and simulated values was less than 11.9%

while the corresponding values were 0.96

4.3 cm and less than 8.4% respectively in clay loam. The models of rising height of capillary water with soil temperature and bulk density were also built. For sandy loam

the absolute coefficient was above 0.996

RMSE was less than 2.7 cm and the maximum relative deviation between the calculated and simulated values was less than 8.37%

and the corresponding values were 0.997

less than 3.8 cm and less than 11.9% respectively for clay loam. The fitting degree of the model was good

and the equation established was in line with the actual situation. The salt contents of sandy loam mainly gathered at 1.70~2.20 m from the surface

while 0.3~1.3 m for clay loam. The distribution of soil salinity in sandy loam soil was significantly affected by soil temperature and bulk density

but only soil bulk density worked in clay loam and temperature had little effect. To summarize

these research results could provide scientific foundation for water and salt management in salinized area.