Published in Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 2
Written by Cristian POPESCU
Geomorphologically, the lower Jiu floodplain, located south of the city of Craiova, covers an area of approximately 40.000 hectares and is more developed on the left side of the river. Based on the materials deposited during floods, it includes three zones: the littoral zone, situated near the watercourse, where coarse alluvial materials were deposited; the central zone, the most extensive, where medium-textured materials were deposited; the pre-tertiary zone, the lowest and farthest from the watercourse, where the deposited alluvial materials are the finest. The alluvial soils identified in the researched area are typical, mollic, gleyic, and salic. Typical alluvial soils are specific to the littoral zone, where soil formation processes are weakly differentiated, resulting in low fertility. Mollic alluvial soils are found in the central zone, where the genesis processes are more advanced, making these the most fertile soils of the floodplain. Gleyic and salic alluvial soils occupy the pre-terrace zone, where groundwater is shallow, leading to gleying and even salinization processes at the base of the soil profile.
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