Principales malezas acuáticas en los canales de riego "Arenal-Tempisque" (Guanacaste) e "Itiquis" (Alajuela), Costa Rica
Fecha
1988
Autores
Gutiérrez Ugalde, Oscar
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Editor
Universidad Nacional (Costa Rica)
Resumen
Se estudió la biomasa y densidad de las plantas vasculaes acuáticas existentes en canales de los Proyectos de Riego Arenal-Tempisque (Guanacaste) e Itiquis (Alajuela), Costa Rica, en 1985 y 1986. Se muestrearon cuatro puntos en cada uno de los proyectos con cuatro muestreos a lo largo del periodo de estudio. Se encontró un total de 28 especies pertenecientes a 14 familias, siendo Poeaceae y cyperaceae las que presentaron mayor número de especies, se dio un predominio de plantas vasculares acuáticas tipo emergente. Las especies dominantes en Arenal Tempisque fueron: Echinochloa polystachya, tripograndra cumanensis Higrophylla guianensis y Najas guadalupensis. Las especies dominantes en Itiquís fueron: Coix lacryma-jobi, Panicun geminatum, Tripogandra cumanensis, Ludwigia decurrens y Alternanthera sessilis.
The biomass and density of existing aquatic vascular plants in canals of the Arenal-Tempisque (Guanacaste) and Itiquis (Alajuela) Irrigation Projects, Costa Rica, were studied in 1985 and 1986. Four points were sampled in each of the projects with four samplings throughout the study period. A total of 28 species belonging to 14 families were found, being Poeaceae and cyperaceae the ones that presented the highest number of species, there was a predominance of emergent type aquatic vascular plants. The dominant species in Arenal Tempisque were: Echinochloa polystachya, Higrophylla guianensis tripograndra cumanensis and Najas guadalupensis. The dominant species in Itiquís were: Coix lacryma-jobi, Panicun geminatum, Tripogandra cumanensis, Ludwigia decurrens and Alternanthera sessilis.
The biomass and density of existing aquatic vascular plants in canals of the Arenal-Tempisque (Guanacaste) and Itiquis (Alajuela) Irrigation Projects, Costa Rica, were studied in 1985 and 1986. Four points were sampled in each of the projects with four samplings throughout the study period. A total of 28 species belonging to 14 families were found, being Poeaceae and cyperaceae the ones that presented the highest number of species, there was a predominance of emergent type aquatic vascular plants. The dominant species in Arenal Tempisque were: Echinochloa polystachya, Higrophylla guianensis tripograndra cumanensis and Najas guadalupensis. The dominant species in Itiquís were: Coix lacryma-jobi, Panicun geminatum, Tripogandra cumanensis, Ludwigia decurrens and Alternanthera sessilis.
Descripción
Gutiérrez Ugalde, O. (1988). Principales malezas acuáticas en los canales de riego "Arenal-Tempisque" (Guanacaste) e "Itiquis" (Alajuela), Costa Rica. [Tesis de Licenciatura. Universidad Nacional, Costa Rica]. Repositorio Académico Institucional.
Palabras clave
PLANTAS ACUATICAS, CANALES DE RIEGO, GUANACASTE (COSTA RICA), ALAJUELA (COSTA RICA), AQUATIC PLANTS, IRRIGATION CHANNELS