Estimación del carbono orgánico sobre el suelo, a partir de imágenes satelitales Landsat 7 ETM+, en el bosque de ceja andina de la comunidad indígena Huangras -Achupallas - Chimborazo

Abstract

The present investigation proposes calculating the organic carbon on the soil of the Ceja Andina forest of the Huangras indigenous community from satellite images LANDSAT 7 ETM+ and field data; the dasometric information recorded in permanent sampling installed by the proyect “Biogeographic Characterization of the Hydric Sub-basins, for the adaptation to the Climatic Change Considering the Andean Cultural Landscape in the Achupallas parish, Alausi canton, Chimborazo province” was used. Additionally, threen plots of 3,600m2 (60x60m) in the not intervened forest were installed, following the Forest Inventory metgodology (MAE, 2011); on the other hand, the mathematical K-nn model was applied to delimit at landscape scale the different coverages, illustrating the information in the satellite imagen Lansant 7 etm+ and with the help of Arcgis tolos four types of soil use were classified (intervened forest of not intervened forest of the Andean Ceja, paramo and cultures). The forest component of the Andean Ceja is composed by 11 species, 10 genera and 10 families and presente an average diameter at the chest height of 26.38 cm, an average total height of 7.84m and a basal area of 20.19 m2 ha-1 . The Andean Ceja present the highest biomass quantity and soil carbón, 2.58 and 1.41 t ha-1 respectivily, as compared to the intervenend forest which present 70.50 t ha-1 of biomass. The K-nn interpolation model as related to the field data carried out a good aerial carbon calculus inthe different types of the soil use studied in the Huangras community, upon presenting pv-0,9747 of the analysis of related means. Key words: Organic carbon, satellite image, Andean ceja forest, forest inventory.