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Effects of long-term irrigation on soluble salts and exchangeable base cations in vertisols from Sudan Gezira

In: Geografický časopis, vol. 54, no. 4
Eltijani A. Elias - Fayez Alaily
Detaily:
Rok, strany: 2002, 343 - 353
Kľúčové slová:
Vertisol, irrigation, salt affected soil, Gezira, Sudan
O článku:
Salt concentrations as affected by long term irrigation and continuous cropping for more than 80 years in Gezira soil were assessed. The study included two profiles in the Gezira Research Station (GRS) farm at Wad Medani. One profile was in a plot that was left permanently fallow while the other one was in a plot under continuous cropping according to the rotation of the Gezira Scheme. Evidence was not found for any increase in salinization accompanying irrigation in these soils despite the arid climate and the primary saline phase associated with these soils. Investigations carried out in the study included total chemical composition, CEC, EC, exchangeable cations, soil pH and soluble cations and anions. Difference in base saturation found in these soils is explained in terms of changes in quantities of exchangeable bases as affected by leaching, dissolution and possibly redistribution of bases.
Ako citovať:
ISO 690:
Elias, E., Alaily, F. 2002. Effects of long-term irrigation on soluble salts and exchangeable base cations in vertisols from Sudan Gezira. In Geografický časopis, vol. 54, no.4, pp. 343-353. 0016-7193.

APA:
Elias, E., Alaily, F. (2002). Effects of long-term irrigation on soluble salts and exchangeable base cations in vertisols from Sudan Gezira. Geografický časopis, 54(4), 343-353. 0016-7193.