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Revista Facultad Nacional de Agronomía Medellín
versión impresa ISSN 0304-2847
Resumen
RUIZ SUESCUN, Oscar Andrés; ACOSTA JARAMILLO, Juan José y LEON PELAEZ, Juan Diego. SURFACE RUNOFF IN NATURAL MONTANE FORESTS AND FOREST PLANTATIONS IN ANTIOQUIA, COLOMBIA. Rev. Fac. Nac. Agron. Medellín [online]. 2005, vol.58, n.1, pp.2635-2650. ISSN 0304-2847.
In natural montane oak forests (Quercus humboldtii Bonpl.), in pine (Pinus patula Schltdl. & Cham.) and cypress (Cupressus lusitanica Mill.) plantations in Piedras Blancas, Antioquia (Colombia), surface runoff flows (SRF) were measured over 16 months. Runoff was measured using 10 m long x 2 m wide runoff bounded plots, collector tanks and a volumetric counter system. SRF were 23,19 mm year -1 (1,07 % of rainfall) for oak forest; 35,13 mm year -1 (1,61 % of rainfall) for pine and 230,64 mm year-1 (11,05 % of rainfall) for cypress plantations. Relationships between hydrological variables and SRF were identified by a principal components analysis (PCA). For each one of the stands, multiple regression analysis was used to fit models of SRF on rainfall, throughfall and mean intensity of rainfall, variables that, according to the PCA results, appeared highly related to SRF.
Palabras clave : runoff; hydrophobic soils; Quercus humboldtii; Pinus patula; Cupressus lusitanica.