Physical-chemical characterization of the highland forest soils of Córdoba

Caracterización química y física de los suelos agroforestales de la zona alta de Córdoba

The present study was carried out with the objective of determining the physical-chemical characteristics and fertility of the forest soils in the Municipalities of Tiérralta, Valencia and Montelibano in the Córdoba Department. Physical and chemical characteristics were studied collecting soil samples from the areas and using 217 results of previous chemical analyses present in the University of Córdoba soil lab database; the analytic methodologies were according to Agustín Codazzi Geographical Institute. The chemical variables were: pH, organic matter (OM), sulfur (S), phosphorus (P), calcium (Ca), magnesium (Mg), potassium (K), exchange capacity (EC), aluminum (Al), zinc (Zn), iron (Fe), cupper (Cu) and manganese (Mn). For each variable a Kruskall multiple comparison test and Wallis, with Dunn, test were performed. The statistical analyses showed significant differences among the areas with respect to chemical characteristics. Low nutritional levels were found in Tierralta and Montelibano with pH of 5.5, an indication of low fertility soils. Elements such as P and S occurred in lower than average (10 ppm) levels and nitrogen availability from the OM was insufficient (<2%). Minor elements such as Cu and Zn are deficient while Mn is in fair levels and Fe quantities are excessive. ><2%). Minor elements such as Cu and Zn are deficient while Mn is in fair levels and Fe quantities are excessive

1. Binkley, D. 1993. Nutrición forestal. Noriega Uteha, México, 340p.
2. CIAF. 1987. Estudio de uso de tierra y cobertura alternativa de ocupación del medio físico. Informe Técnico, CIAF, Bogotá, 181p.
3. CIAF. 1985. Plan de ocupación de la cuenca del rió Sinú. CIAF, Bogotá, 300p.
4. Combatt, E. 2004. La empresa forestal en Córdoba. Seminario Taller Cadena Forestal de Córdoba, Montería, 60p. CONIF. 1998. Guía para plantaciones forestales comerciales en Córdoba. Serie de Documentación No 34, CONIF, Bogotá, 48p.
5. CVS (Corporación de los Valles del Sinú y San Jorge). 2001a. Plan básico de ordenamiento territorial del Municipio de Valencia, Córdoba 2001–2015, CVS, Montería, 91p.
6. CVS. 2001b. Diagnóstico de la micro cuenca hidrográfica quebrada Honda, Municipio de Tierralta, Departamento de Córdoba. CVS, Montería, 50p.
7. CVS. 2001c. Plan básico de ordenamiento territorial 2001–2010 del Municipio de Montelibano, Córdoba. Informe Técnico, CVS, Montería. 513p.
8. De Morales, G. 1988. Propiedades físicoquímicas dos solos vs exigencias nutricionais de espécies florestais de rápido crescimento. IPEF (Instituto de Pesquisas e Estudos Florestais). Circular Técnica no 154. Instituto de Pesquisas e Estudos Forestais, Piracicaba, 16p.
9. IGAC (Instituto Geográfico Agustin Codazi). 1990. Métodos Analíticos del Laboratorio de Suelos. IGAC, Bogotá, p.125-136.
10. Jaramillo, D. 2002. Introducción a la Ciencia del Suelo. Facultad de Ciencias, Universidad Nacional, Medellín, CD-ROM.
11. Navarro, S. y Navarro, G. 1984. Temas de Química Agrícola. Editorial Academia, Madrid, 303p.
12. Pritchett, W. 1991. Suelos Forestales. Limusa, México D.F., 634p. S
13. methurst, P. y Wang, B. 1998. Soil solution phosphorus and Eucalyptus nitens roots in NP-treated micro sites in highly phosphorus-fixing soil. N.Z. Journal of Forestry Science 28:140– 151.
14. Vaz de Arruda,S. y Namita, H. 2003. Aspectos nutricionais envolvidos na ocorrência de doenças com ênfase para o eucalipto. Circular No 200. Instituto de Pesquisas e Estudos Forestais, Piracicaba,16p.
15. Wadsworth, F. 1997. Forest Production for Tropical America. USDA-Forest Service. Agriculture Handbook, USDA, Washington, 563p.