IMPACT OF GROUND WATER SALINITY AND SODICITY ON SOIL CHEMICAL PROPERTIES AT SOILS NEARBY QAROUN LAKE, FAYOUM, EGYPT.

Document Type : Research articles.

Authors

Soil and Water Dep, Faculty of Agriculture, Fayoum University, Egypt

Abstract

To study the effect of ground water salinity and sodicity on some soil
chemical properties, the selected area under study comprised the nearest
northern fringes of Qaroun lake shoreline, which considered as the main outlet
of drainage water of El Fayoum Governorate via many drainage canals. The
parent materials of most lands are more related to calcareous coarse textured
nature. These soils were put under reclamation in sequence more than ten
years ago, and most of their lands were put under cultivation. The newly
cultivation, surface irrigation and the insufficient drainage system make up < br />water ground table raised. In general, soil chemical properties showed that
most of the soil profiles under investigation suffer from salinity appearances.
Therefore, it is accepted that such soils might need to reclamation and
amelioration processes. The relationships between different soil variables and
ground water characteristics reflect highly positive correlation between soil
salinity and ground water salinity, whereas, the reverse was observed with
ground water depth, which showed a negative and highly significant
correlation.
In order to permanently improve the studied soil area , it is necessary to not
only leach salts , but also to have adequate drainage .The drainage system
must provide a lot amounts let for the removal of the leachates as well as keep < br />the water table deep enough to prevent salt ground water from moving up to
the root zone . Gypsum must be added according to gypsum requirements.

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Fayoum Journal of Agricultural Research and Development
Volume 31, Issue 1
January 2017
Pages 124-135

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