Scientific Papers Series A. Agronomy

From a chemical reaction these soils have a
moderately weak acid (5.5 to 6.8) and a smallmedium
humus content (4.0 to 6.5%). They
have a high base saturation between 63-75%
and a good supply of nitrogen (0.200 to
0.300%) (Table 2, Figure 6).
Table 2. Chemical data concerning the rodhi-eutric
cambisols
Depth Humus V Total N
Horizon
pH
(cm ) (%) (%) (%)
Ao 0-12 5.5 4.5 63 0.224
AB 12-25 5.7 3.9 70 0.195
Bv1 25-63 5.7 1.9 75 0.097
Bv2 63-140 6.8 - - -
Figure 6. Variation of the chemical of rodhi-eutric
cambisols
CONCLUSIONS
Genesis terra rossa soil is not sufficiently
known. Different opinions were issued,
focusing on the fact that these soils would be
formed on limestone, but only under a subsediterranean
and mediterranean climate or
interpreted as paleosols and relict soils.
Our view is that such soils are formed under
certain conditions hydroclimatic now, draining
the soil and geomorphological rubescent work.
Terra rossa soils have a low volume edaphic
small – medium, fertility forest but relatively
good for pastures and meadows.
REFERENCES
Grigorescu Adriana, Craciun C., Piciu I., Curelariu Gh.,
Florea N., 1987. Chemistry and mineralogy of red
soil formed on material bauxite. ICPA Annals, Vol
XLVIII, Bucharest.
Parichi M., Stanila Anca-Luiza, 2002. Complex
pedological research in the Gârda Seaca-Ordâncusa-
Poiana Calineasa (Bihorul Nordic)
area.Volume Possibilities of sustainable development
of a traditional region form the Eastern Europe.
Popovat M., Oancea C., 1970. Terra rossa, a relict soil in
southwestern Romania. Technical and Economic
Studies, Series C, No. 17, Geological Institute,
Bucharest.
Stanila Anca-Luiza, Parichi M., Reif A., Herisanu Gh.,
Rascu I., 2005. Considerations about the influence of
parental rock over the formation and evolution of
soils of the Gârda Seaca-Ordâncusa located (Bihorul
Nordic) . Factors and processes in the temperate areas
pedogenetic, Volume no. 3, The new series,
Alexandru Ioan Cuza Publishing House, Iasi.
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