REGENERACIÓN PIONERA EN DESLIZAMIENTOS DE TIERRA PRODUCIDOS POR PERTURBACIONES ANTROPOGÉNICAS JUNTO A CARRETERAS, EN LA ZONA DE AMORTIGUAMIENTO DEL PARQUE NACIONAL PODOCARPUS, ECUADOR

Abstract

A study on the pioneer vegetation after anthropogenic disturbance through road construction was carried on ¡n the vicinity of Podocarpus National Park in Southern Ecuador. One hundred four plots (1 x 5m) on 41 landslides were established along an altitudinal gradient from 1900 to 3000m, from east to west such as north to south, roads along the parks perimeter as well as in the buffer zone were used to test pioneer plant and floristic changes. Collections yielded 4629 records, comprising 312 species, 152 genera and 69 families. TWINSPAN analysis delineated nine landscape units, CANOCO singled out altitude, organic material, lime and exposition as the principal features to sepárate vegetal communities.