Respiration parameters determined by the ISO-17155 method as potential indicators of copper pollution in vineyard soils after long-term fungicide treatment

► Soil-respiration parameters measured according to ISO-17155 were used to monitor soil quality in Cu-polluted soils. ► The study includes 95 vineyard soils. ► Threshold limits for Cu are difficult to establish due to confounding effects of pH and organic C. ► To preserve quality of these vineyard acidic soils, organic carbon > 2% and pH > 5.5 are recommended.