Pedosphere 5(3): 251--257, 1995
ISSN 1002-0160/CN 32-1315/P
©1995 Soil Science Society of China
Published by Elsevier B.V. and Science Press
Salt-water dynamics in soils: V. Salt balance in soil profiles
YOU Wen-Rui and MENG Fan-Hua
Institute of Soil Science, Academia Sinica, P. O. Box 821, Nanjing 210O08 (China)
      Salt balance in simulated soil columns was calculated on the basis of a large amount of long term observation data. The results showed that under the climate conditions of semi-arid region of the Huang-Huai-Hai Plain, the soils in the columns were under salt accumulation conditions when the groundwater depth was controlled at less than 2.0 m, and under desalinization conditions when at larger than 2.5 m. In the soil columns with clay soil and silty loam soil intercalated with a clay layer, the amount of salt accumulated was far less than that in the soil column with silty loam soil throughout the whole profile. Under no irrigation conditions crop planting may increase groundwater evaporation and hence salt accumulation in soil, making the soil columns under desalinization be under salt accumulation conditions.
Key Words:  salt balance, sait-water dynamics, soil profile
Citation: You, W. R. and Meng, F. H. 1995. Salt-water dynamics in soils: V. Salt balance in soil profiles. Pedosphere. 5(3): 251-257.
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