EDAFOLOGIA, Vol. 10 (2), pp. 247-254, 2003
CALIBRACIÓN DE UN SIMULADOR DE LLUVIA PARA ESTUDIOS DE DEGRADACIÓN DEL SUELO
R. PÉREZ, L. JIMÉNEZ, P. GARCÍA-ESTRÍNGANA, M.J. MARQUÉS, M. CHICHARRO, S. GONZÁLEZ, J. ALEGRE, R. BIENES
Instituto Madrileño de Investigación Agraria y Alimentaria. Finca El Encín. Cra N-II Km 38.2. Alcalá de Henares. 28800. Madrid. e.mail: raquel.perez.rodriguez@madrid.org
Rainfall simulators are being more and more used for hydrological and erosive studies, so it is necessary that they are well characterized for a good interpretation of the results. It is desirable that simulated rainfall were similar to intense natural rain. It has been stu- died the size and velocity of the drop, as well as the kinetic energy. The 3/8 HHMFP 115 14 is the nozzle that presents an acceptable uniformity coefficient (80,7 a 92,4 %), for all the tested pressures. For this same nozzle, at a pressure of 1,3 kg cm-2, the drop diameter has been of 1,4 mm and the kinetic energy has been 20,3 J mm-1 m-2.
Key words: Rainfall simulated, drops size, drops velocity, kinetic energy.