Maestría en Manejo, Uso y Conservación del Bosque
URI permanente para esta colecciónhttp://hdl.handle.net/11349/23
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Examinando Maestría en Manejo, Uso y Conservación del Bosque por Autor "Baptiste, María Piedad"
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Ítem Efecto de especies con potencial invasor en procesos de regulación hídrica del suelo en un ecosistema seco tropicalVásquez Valderrama, Maribel Yesenia; López Camacho, René; Baptiste, María PiedadIn Colombia ~ 90% of dry tropical forest has been disappear due to antropogenic disturbances. It generates ecological processes loss, degraded soils and biological invasive events. To assess how potential invasive plant species impact hydric processes in soils, we evaluate associations between structural and functional diversity, and four hydric processes in soils of a dry ecosystem site, during two climatic periods and different disturbance levels. We found significant differences between hydaulic functional traits of plant species. While, native tree species showed conservative functional traits, related to high hydraulic safety and low hydraulic efficiency, exotic plant species presented opposing traits. Soil hydric processes, related to soil infiltration and soils hydraulic conductivity, do not showed significant differences between sites neither climatic periods. In contrast, soil compaction and soil moisture differ between sites and climatic periods, where dry forest showed higher soil moisture and lower soil compaction values during climatic periods. Higher soil infiltration values, during rain period, was associated to functional structure of traits with higher leaf area and maximum height, commonly in native trees species. Soil moisture were positively related to functional structure and diversity of conservative species. It means that sites with higher infiltration levels are mainly dominated by native plant species with high hydraulic safety but low hydraulic efficiency. Our results suggest even though sites dominated by exotic plants have not showed functional structure and diversity such as dry forest, those sites increase hydric soil processes compared to degraded soils sites. We discuss our results and their conservation implications for tropical dry forest.