Spatial modeling of ecological areas by fitting the limiting factors for As in the vicinity of mine, Serbia.

Elevated arsenic (As) concentrations in soil are often found in the vicinity of certain mineral deposits that have been, or are currently, under exploitation, regardless of the target resource. Detailed study of such areas for safe agriculture requires considerable financial costs and long periods of time. Application of an appropriate spatial model that describes the behavior of arsenic in soil and plants can significantly ease the whole investigation process.

Soil properties and trace elements contents following 40 years of phosphate fertilization.

Long-term application of P fertilizers may eventually result in excess and/or toxic accumulations of trace elements and microelements in soil. The effect of monoammonium-phosphate (MAP) on basic soil properties (pH, CEC, texture), the total content of C, N, and F, hot acid-extractable Cu, Zn, Ni, Cr, Pb, Cd, Co, As, Hg, and F, and the content of extractable macro- and trace elements (P, K, Ca, Mg, Al, Fe, Zn, Cu, Ni, Pb, Cd, F) were studied on a Stagnosol soil. Phosphate fertilizer had been applied (26, 39, and 52 kg P ha(-1)) over a 40-yr period.