Evaluación de la complejidad de vertederos-cubierta edáfica y suelos de las áreas de descarga-en relación a la revegetación y la fitorremediación

Abstract

This report describes an evaluation of 14 UWLF in the Madrid Community that were sealed for the first time about 20 years ago. These areas are considered to potentially have the most polluted soils of the region. Phytoecological and soil studies undertaken during the course of these years, both on the sealing soil covers and the soils of disposal areas have revealed certain aspects that could help in the design of restoration measures for these landscapes. Without simply summarising these aspects, we systematically report the main questions addressed: differences between the landfills and reference ecosystems in soil and biodiversity variables; and differences in soil variables among the different landfill slopes. Also examined was the specialisation of the flora to the different ranges and levels of disturbance, and the adaptive strategies developed by herbaceous species colonizing these settings, as revealed by several biological traits. Our findings reveal that the events and continued land uses suffered since the initial sealing of the landfills, as well as the particular features of each landfill, have compromised revegetation or soil phytorestoration measures.