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THE EFFECT OF LAND USE DYNAMICS ON STREAM FLOW FLUCTUATIONS: A SWAT SIMULATION CONDUCTED IN A THIRDORDER WATERSHED OF CENTRAL HONDURAS
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Pp. 154-160 in Total Maximum Daily Load (TMDL) Environmental Regulations–II Proceedings of the 8-12 November 2003 Conference (Albuquerque, New Mexico USA), Publication Date 8 November 2003. .(doi:10.13031/2013.15551)
Authors: S. Rivera and W. N. Martinez
Keywords: SWAT, Hydrological models, Watershed, Land use, Deforestation, Natural resources, Water yield, Honduras
In Honduras, as well as in many other developing countries, less than 60% of the population in
Honduras has reasonable access to safe drinking water and its quality is decreasing at an
accelerated rate. This study consists of assessing the stream flow patterns after land use changes
in the 4,200-ha Rio Calan Watershed of Central Honduras. Streamflow modelling was conducted
using SWAT (Soil and Water Assessment Tool), a computer-based program developed by
University of Texas to predict the impact of land management practices on discharge and water
quality at the watershed scale. This constitutes the first attempt to use SWAT under tropical
conditions in Honduras.