Salt accumulation in soils and plants under reclaimed water irrigation in urban parks of Madrid (Spain)

摘要

Reclaimed water irrigation in urban parks is expanding all over the world and could cause salt accumulation in soil and plants. Since the beginning of the 2000s, the city of Madrid (Spain) has been using reclaimed water to irrigate its parks. The main aim of this study was to estimate salt accumulation in soils and plants due to reclaimed water irrigation in two urban parks of Madrid. It was conducted over five consecutive years and the chemical properties in soil solution, soil and plant leaves of four species were analyzed. Two plots from each park were selected, one irrigated with reclaimed water (RW) and another one irrigated with drinking water (DW).