Variation in Some Macronutrients in Soil and Plant Organs at Copper Mining Sites

The present study aimed to determine the variation in calcium (Ca), magnesium (Mg), and potassium (K), which are crucial macronutrients for plants, in soil and plant organs at a copper mining site. In the study, the soil was sampled from various soil depths in the spoil field, the rehabilitation site in which planting was carried out and adult trees were present, and the forest area. Furthermore, bark, leaf, root, and wood samples were taken from black pine (Pinus nigra Arnold.), scots (Pinus silvestris L.), and black locust (Robinia pseudoacacia L.) species growing in the rehabilitation and forest areas. The work determined general variation in the concentrations of elements in soils and organs according to the plant species, and variation in element concentrations depending on the soil depth was statistically significant only in Ca. However, the determined element concentrations were quite high. In line with the average values, the variation in Mg in plants was not statistically significant, while the highest Ca and K concentrations were obtained from Robinia pseudoacacia species.