Daños y efectos del fuego sobre vegetación nativa en paisajes costeros de Chile Central. Estudio de caso: la palma chilena

Abstract

The current state of adult of Jubaea chilensis Mol. Baillon present in hills and gorges of costal area of the fifth Region is analyzed. By means of the use of Landsat satellite images corresponding to five periods of fires, with the support of aerial images of high resolution, and field campaigns in a period of 21 months of pursuit, adult units of Palma Chilena in north and east mountainside were characterized, in altitude transect. The results indicate that the population distribution is concentrated in an adult state with phase of decline, and in a process accelerated and regressive of degradation, with little possibilities of natural regeneration product of the high frequency and intensity of fires. The process of fragmentation of the vegetal landscape, favored by anthropic processes derived from the road construction, fires, extraction of firewoodand increase of towns in hill sectors near the surrounding vegetation, accentuates this problem, which does not show signals to revert.