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vol.15 issue2USEFUL PLANTS FOR THE MAKING OF HANDICRAFTS IN THE DEPARTMENT OF CAUCA (COLOMBIA)EFECTS OF FERMENTATION OF SWINE MANURE IN SOLID STATE ON THE PATHOGENS PERSISTENCE IN SILAGE author indexsubject indexarticles search
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Boletín Científico. Centro de Museos. Museo de Historia Natural

Print version ISSN 0123-3068

Abstract

CASTELLANOS-M, César A et al. SPATIAL AND TEMPORAL VARIATIONS OF THE VEGETAL COATING IN THE MICROBASIN EL LLANITO, SANTANDER, COLOMBIA. Bol. Cient. Mus. Hist. Nat. Univ. Caldas [online]. 2011, vol.15, n.2, pp.60-68. ISSN 0123-3068.

A detailed analysis of the variations in vegetation coating and the mirror still water swamp El LLanito in the area of the micro-basin El Llanito located in the municipality of Barrancabermeja (Santander) is presented. A comparative study of vegetation and land use supported on traditional optical sensors and field verification was carried out between the 1960s and 1990s. Based on IGAC (2000), methodology, eight types of vegetation coating, five types of uses of soil, and four types of water coating were identified. Each type of coating was geo-referenced and transferred to 1:25000 scale thematic maps, and then organized into a Geographic Information System (GIS). The following impact indicators were obtained: deforestation of 4635.26 natural forest hectares, , increase of 663.83 hectares of secondary forest, increase of 1639.09 hectares of improved pastures, and 318.05 hectares extension of the mirror still water swamp El Llanito. The results indicate that the original ecosystem has been split due to processes of selective logging, colonization, and increased livestock holdings.

Keywords : vegetation coverage; El Llanito; GIS; Santander.

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