Análisis de la arborización del Parque Samanes en la ciudad de Guayaquil, Ecuador
Fecha
2018
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Facultad de Ciencias Naturales, Universidad de Guayaquil
Resumen
Un análisis de la arborización del parque Samanes, el único parque urbano que pertenece al Sistema Nacional de Áreas Protegidas del Ecuador (PANE), determina que el estrato arbóreo-arbustivo posee una baja diversidad (2.34), según el índice de Shannon-Wiener, y un exceso (76%) de especies exóticas. Se reporta la pérdida de dos especies nativas y endémicas plantadas: Priogymnantus apertus (Oleaceae) y Erythroxylum patens (Erythroxylaceae). En el área de Canchas se registra elevadas densidades de siembra en especies nativas como la seca (Geoffroea striata); y en introducidas, como: acacia azul (Jacaranda mimosifolia) y guayacán flor rosa (Tabebuia heterophylla). A través de un censo de los árboles de 20 cm o más DAP en el área de Muelles y Balnearios, se determina que no tuvo sustento técnico el trasplante de 175 árboles maduros, simultáneo a labores de relleno de suelos para elevar la cota en las áreas de Canchas y Contemplación y Eventos. Se concluye que el inusual manejo del parque Samanes debe ser redireccionado de acuerdo a su estatus de área protegida del Ecuador, se proveen las recomendaciones pertinentes.
A survey on trees and shrubs planted on Samanes park, the only urban park in Ecuador that belongs to the National System of Protected Areas of the country, yields a low diversity, (2.34) following the Shannon-Wiener index, and a high number (76%) of exotic species. The lost of two native and endemic species is reported herein, those are: Priogymnantus apertus (Oleaceae) and Erythroxylum patens (Erythroxylaceae). It is recorded high densities of planting native trees, as seca (Geoffroea striata); as well as of exotic trees, as: acacia azul (Jacaranda mimosifolia), and guayacán flor rosa (Tabebuia heterophylla). Performing a census of trees 20 cm or more DBH on Muelles and Balnearios area, it is demonstrated that the removal and transplanting of 175 mature trees, simultaneously to the filling and raising of ground on Canchas, and Contemplación and Eventos areas, had no technical support. It is concluded that the unusual management of Samanes park must be redirected accordingly to the status as a protected area of Ecuador; recommendations are provided.
A survey on trees and shrubs planted on Samanes park, the only urban park in Ecuador that belongs to the National System of Protected Areas of the country, yields a low diversity, (2.34) following the Shannon-Wiener index, and a high number (76%) of exotic species. The lost of two native and endemic species is reported herein, those are: Priogymnantus apertus (Oleaceae) and Erythroxylum patens (Erythroxylaceae). It is recorded high densities of planting native trees, as seca (Geoffroea striata); as well as of exotic trees, as: acacia azul (Jacaranda mimosifolia), and guayacán flor rosa (Tabebuia heterophylla). Performing a census of trees 20 cm or more DBH on Muelles and Balnearios area, it is demonstrated that the removal and transplanting of 175 mature trees, simultaneously to the filling and raising of ground on Canchas, and Contemplación and Eventos areas, had no technical support. It is concluded that the unusual management of Samanes park must be redirected accordingly to the status as a protected area of Ecuador; recommendations are provided.
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ARBORIZACIÓN, ÁREA PROTEGIDA, PARQUE SAMANES