| Journal: | Revista latinoamericana de recursos naturales |
| Database: | PERIÓDICA |
| System number: | 000271227 |
| ISSN: | 1870-0667 |
| Authors: | Sánchez Andrés, Raquel1 Sánchez Carrillo, Salvador Sánchez López, Alma Rosa2 Benítez Gilabert, Manuel Alatorre, Luis Carlos |
| Institutions: | 1Instituto Tecnológico de Sonora, Departamento de Ciencias del Agua y Medio Ambiente, Ciudad Obregón, Sonora. México 2Consejo Superior de Investigaciones Científicas, Centro de Ciencias Medioambientales, Madrid. España |
| Year: | 2005 |
| Season: | Nov |
| Volumen: | 1 |
| Pages: | 3-19 |
| Country: | México |
| Language: | Español |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | The aim of this study was to determine the effects that soil management exerts over infiltration process in a Quercus ilex experimental afforestation, considering whether a most effective water use by plants (i.e. more growth) came conditioned by an increase in the water inputs to the soil system from infiltration. Three soil management experiments were established in afforested plots: mechanical weeding (rotivator), chemical weeding (glyphosate) and non-treatment. A control plot was included to observe the effects occurring when a land use is taken. Results show that infiltration rates depend more on intrinsical soil properties than on soil management. Spatial variability appears related to microtopography where the highest infiltration rates were registered in low areas. Final constant infiltration rates were lower on the mechanical weeding and control than on chemical weeding and non-treatment plots. However, comparatively, in the mechanical and chemical weeding, constant infiltration rates appeared before, indicating a quick advance of the soil humidity front conditioned by the soil treatment. When no mechanical management was applied to the soil, the spatial heterogeneity in infiltration was increased. No significant relationships were asserted between infiltration rates and soil porosity (>10 mm). Neither appeared between soil water content and time until constant infiltration rate. The most significant control on infiltration was due to soil water content at 15-30 cm depth. Negative gradient on soil water content decreased the infiltration rates. Finally, simple estimates on infiltration rates based on soil moisture and quick drainage porosity increase our accuracy on soil water flow predictions |
| Disciplines: | Agrociencias, Biología |
| Keyword: | Suelos, Ecología, Reforestación, Quercus, Manejo, Humedad, Sobrevivencia, Zona semiárida |
| Keyword: | Agricultural sciences, Biology, Soils, Ecology, Reforestation, Quercus, Management, Survival rate, Moisture, Semiarid zones |
| Full text: | Texto completo (Ver HTML) |
