Baseline concentration of heavy metals in agricultural soils

Rueda-Saa, Germán Y Marín-Pimentel, Gilberto Eduardo Y Menjivar-Flores, Juan Carlos (2025) Baseline concentration of heavy metals in agricultural soils. Revista de Ciencias Agr�colas, 42 (2). e2259. ISSN 2256-2273

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Resumen

The total concentrations of heavy metals in agricultural soils in the flat and piedmont zones of Valle del Cauca (Colombia) were evaluated. A simple random sampling was performed in 489 representative sampling sites. Samples were collected in the orders mollisol, inceptisol, and vertisol soils in 13 watersheds. Concentrations of Cd, Ni, Pb, Co, Cr, As, and Hg in soils do not follow a normal distribution. In some agricultural soils, concentrations of Cr, Ni, and Co exceeded typical ranges. Cr shows warning signs in the Pescador, RUT, and Tuluá watersheds. Alarm Ni concentrations were found in Guadalajara, Pescador, RUT, San Pedro, Sonso, and Tuluá. Alert Co levels were in the Jamundí and Pescador watersheds. As, Hg, Cd, and Pb showed high variability, while Cr, Ni, and Co showed moderate variability. A factorial analysis was performed using the Kaiser-Meyer-Olkin index (KMO) and Bartlett's test of sphericity. The KMO index indicated a correlation between the elements Hg, Cr, Ni, Pb, and Co. Cr, Ni, and Co have the highest contribution to the variance of component 1. In component 2, the highest variance is inversely correlated with Hg and Pb. The research provided a baseline for the levels of heavy metals in the region's agricultural soils. The concentrations of metallic elements are reported and compared with typical ranges found in agricultural soils.

Tipo de Elemento:	Artículo
Palabras Clave:	factorial analysis; soil contamination; soil taxonomy; total concentration; watershed
Asunto:	S Agricultura > S Agriculture (General)
Division:	Revistas > Revista de Ciencias Agrícolas
Depósito de Usuario:	FACIA Fac. Ciencias Agrícolas Udenar
Fecha Deposito:	12 Jun 2026 21:20
Ultima Modificación:	12 Jun 2026 21:20
URI:	http://sired.udenar.edu.co/id/eprint/17978

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