Capacity of two vegetative species of heavy metal accumulation

E. MARTINEZ CARRETERO; NAVAS A.L.; HERRERA MORATTA M.

Taller; IV TALLER REGIONAL SOBRE REHABILITACIÓN Y RESTAURACIÓN EN LA DIAGONAL ÁRIDA DE LA ARGENTINA I TALLER INTERNACIONAL DE RESTAURACIÓN ECOLÓGICA; 2018

In Argentina, more and more human activities result in a significant deterioration of the biological surface of the soil. Biological soil crusts provide significant ecosystem services to drylands. With the intention of knowing CB attributes that allow evaluating their role in the restoration, our objective was determine the stability, compaction, moisture retention, content of organic matter, nitrogen, phosphorus, temperature and radiation in soils covered with biological crusts. The study area was located in the Dept. Las Heras, Mendoza. 30 blocks of 2 m2 were built at random in the extension of the interparche. Each block was made up of two zones, one with a biological crust (CCB) and another without a biological crust (SCB), separated by 50 cm. In each block soil stability (Herrick´s test), compaction (dual penetrometer), moisture retention (saturation and weighing), content of organic matter (calcination), nitrogen (Kjedahl), phosphorus (photometry of flame), temperature (digital thermometer) and radiation (point radiometer). Significant differences were found (p