10.8b (6.50 ha Index 184)
Most of the gently undulating lands in the Departments correspond to this group. of Canelones and San José, located in the surroundings of population centers such as Libertad, San José, Tala, Canelones, Saint Baptist, etc. They exist to a lesser extent in the Departments. of Colonia y Maldonado. The geological material corresponds to clayey silt sediments of brown color and normally with calcium carbonate concretions. The relief is gently undulating to undulating with predominance of slopes of 1 to 4%, with a region around Tapia with slopes of 3 to 6%. It corresponds to areas with a lower degree of current erosion, defined as moderate, with associated areas of light erosion. Sheet erosion then predominates, with variable loss of the upper horizons. This group is normally located in positions with low erosion risk, such as high interfluves and gently sloping slopes. The soils correspond to Typical Ruptic and Luvic Vertisols (Grumosoles) and Typical Eutric and Subeutric Brunosols (Black and Medium Brown Grasslands), black or very dark brown in color, silty clay loam texture, high fertility and moderately well drained. This group corresponds to the Tala-Rodríguez, Libertad and San Jacinto units and integrates to a lesser extent the Ecilda Paullier-Las Brujas and Isla Mala units of the 1:1.000.000 (DSF) scale chart.
