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Revista Facultad Nacional de Agronomía Medellín

Print version ISSN 0304-2847

Abstract

OVIEDO PASTRANA, Misael Enrique et al. Soil Suitability in the Coastal Area of the Department of Córdoba (Colombia) for Fish Culture. Rev. Fac. Nac. Agron. Medellín [online]. 2012, vol.65, n.1, pp.6431-6438. ISSN 0304-2847.

Abstract. The study was doing to assess the suitability of soil in the coastal region of Cordoba department (Colombia), for fish farming. Soil samples were taken in 62 locations at 20, 70 and 140 cm deep and measured pH, organic matter (OM), phosphorus (P), texture and iron (Fe). Using GIS, results of the studied parameters, coordinates and cartography of related sites were built into the software database of ArcGIS 9.3 and associated to spatial analysis tools for interpolation and generation of thematic maps of soil suitability for fish farming. The average values of the parameters for pH (6.67 ±0.76), MO (0.51 ± 0.34%), P (19.62 ± 26.99 ppm), were within the range to fish farming. The high concentration of Fe (26.34 ± 22.65 ppm) was considered the most critical parameter, especially for areas with low pH. The soil suitability map generated by the integration of the parameters studied, identified 123,625 ha as moderately suitable (67.4%), 53,909 ha were considered suitable (29.3%) and only 6,093 ha were rated unfit (3.3%). However, this result should be correlated with other attributes such as topography, vegetation, land use, water availability, water quality, drainage capacity, environmental constraints and socio-economics of the region.

Keywords : Geographic information systems; freshwater tropical systems; small reservoirs; environmental assessment.

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