SEDIMENT PRODUCTION UNDER DIFFERENT SOIL UTILIZATIONS, AT LOS SAUCES RIVER BASIN, MICHOACAN
This study was carried out in Los Sauces River Basin in Michoacán, México, in order to measure sediment yield and runoff caused by simulated rain under three types of land use. Four 7 m2 drainage-lots were prepared. Plot 1 and 2 (agricultural) in Fluventic Dystropepts soils, Plot 3 (grassland) in Ustic Dystropepts soils, and Plot 4 (tepetate) was not identified. In each plot two simulated rain intensities were applied, 40 mm h-1 under dry conditions and of 60 mm h-1 in wet conditions. For each rainfall rate, runoff and infiltrated amounts of water, as well as sediment production, were measured. Tepetate produced the most runoff in wet soil, reaching a coefficient (Ke) of 87.35 %, followed by Plot 1, 67.01 %, and Plot 2, 50.73 %; in grassland no runoff occurred. Sediment yield showed the following results: tepetate with 4.41 kg, agricultural (1), 2.04 kg, agricultural (2), 0.51 kg, and grassland none. It was determined that the presence of initial moisture and high intensities of rain favor runoff formation and increase sediment production.
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Colegio de Postgraduados
1998
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| Online Access: | https://www.agrociencia-colpos.org/index.php/agrociencia/article/view/1549 |
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