A numerical simulation of the soil salinity reduction
Article Sidebar
Main Article Content
Abstract
Using the filtration and kinetic equations of the chemical reaction between the carbonate sodium and calcium sulfate, the soil salinity change is numerically simulated. It is shown that an application of external sorbent intensifies reduction of sodium in the upper 20 cm layer of the soil on 10%. The process of infiltration causes a displacement of liquid phase of sodium carbonate in the lower depths (z > 2 m) from the upper levels and rise its concentration in the lower levels.
Article Details
References
Sabashvili M. Soils of Georgian SSR. Tbilisi: Metsniereba, 1967, 372 p. (in Georgian).
Salt-Affected Soils and their Management, FAO, Soils Bulletin 39,
http://www.fao.org/docrep/x5871e/x5871e00.htm.
SALTMOD. Description Principles, User Manual, and Examples of Application.
www.waterlog.info/saltmod.htm.
Clemente, R. S.,Prasher, S. O., Salehi, F. Performance testing and validation of
PESTFADE. http://ideas.repec.org/a/eee/agiwat/v37y1998i3p205-224.html
Robbins, C.W., R.J. Wagenet and J.J. Jurinak. A combined salt transport-chemical equilibrium model for calcareous and gypsiferous soils. Soil Sci. Soc. Amer. J. 1980.v. 44, pp.1191-1194.
Haith D. A. A mathematical model for estimating pesticide losses in runoff. Journal
Environmental Quality. 1980, v. 9, pp. 428-433.
Breseler E. Transport of salts in soils and subsoils. Agricultural Water Management. 1981, v.
, pp. 35-62.
Denisov Y. M. Mathematical model of the water- and salt transfer processes in the soils. Mathematical Modeling of the hydrodynamic processes. Novosibirsk, 1984, pp. 49-55. (in Russian).
Addiscott, T.M. and R.J. Wagenet. Concepts of solute leaching in soils: a review of
modelling approaches. Journal of Soil Science. 1985, v. 36, pp. 411-424.
Nour el-Din, M.M., I.P. King, K.K. Tanji. Salinity management model: I. Development.
ASCE Journal of Irrigation and Drainage Engineering. 1988, 113(4), pp. 440-468.
Relks L. M., Yakirevich A. M. Calculation of the moisture, heat and salts transfers in the
saturated and non-saturated zones of the soils. http://rex.vniigim.ru/TWSR02/Rex5.htm
Surmava A. A. Mathematical modeling of movement solute in soil. Proceedings of
ZakNIGMI, v. 86(93), 1988, pp. 3-9.(in Georgian)
[ 13] Surmava A. A., Tugushi N. K., Shavliashvili L. U., Intskirveli L. K. Numerical modeling
of a salinity loss of soil. Proceedings of M. Nodia Institute of Geophysics. 2008, v. LX.
Chailds E. . Physical basis of soils hydrology. L. Gidrometeoizdat, 1973, pp . 427.(in Russian)