Factors Affecting Spatial and Temporal Variability of Metals in Drainage Water from Arable Fields

Respecting fertilizer application, the metal content in drainage water is studied under conventional agricultural management from 2013 to 2014 two adjacent fields located North German Plain. Findings are compared with data of nutrients, main ions, and dissolved organic carbon, as well element contents fertilizers geogenic background values soils. Comparatively low concentrations found water. These results line applied mineral fertilizers, cattle slurry, random analysis soils considered. Relating effective ordinances, occasionally pose a risk for groundwater or downstream bodies. Concentrations some metals (Al, Co, Cr, Pb, V) rather affected by soil erosion than fertilizers. Besides erosion, mainly pedo-hydrological conditions, which differ between fields, influence profiles tile extent anoxia subsequent denitrification sulfate reduction. Against climate change, further investigations respect possible changes budget necessary.