Publication date: 15 February 2017
Source:Geoderma, Volume 288
Author(s): Mervin St. Luce, Noura Ziadi, Bernard Gagnon, Antoine Karam
Continuous assessment of soil heavy metal concentrations in agricultural soils is critical for ensuring ecosystem health and minimizing potential adverse effects. However, conventional laboratory determinations are time-consuming, expensive and involve hazardous chemicals. We evaluated the potential of visible near infrared reflectance spectroscopy (VNIRS) to rapidly and simultaneously predict total, Mehlich-3 (M3), DTPA, and water-soluble (H2 O) soil heavy metal concentrations. Soil samples were collected from a loam soil (n n n V ) and the ratio of performance to deviation (RPD) were used to assess model accuracy. Predictions for the total set were excellent for total Zn and Cd, M3-Cu and -Cd, and DTPA-Cd (R2 V 2 O-Cu and -Ni (R2 V 2 O-Zn, -Cd and -Mo (R2 V
Source:Geoderma, Volume 288
Author(s): Mervin St. Luce, Noura Ziadi, Bernard Gagnon, Antoine Karam