Determinación de carbono orgánico en suelo y biomasa del páramo de la Comunidad Chocaví de la Parroquia San Isidro

Abstract

Determine the amount of organic carbón in soil and biomass of moorland in Chocaví community of Ssn Isidro Parish in Guano canton, Chimborazo province. Initially, it was investigated yhe importance of the moors as well as the ancestral practices in Chocaví community. The research area was delimited with a GPS an the four sampling points were differentiated. Samples taken from braids, straw, and pad were washed, with the same soil samples of two depths with an auger of 1,20m same were allowed to air dry in order to be reviewed at the Water Laboratory of the Scieence Faculty using the Walkley – Black technique. The technique is based in the potassium dichromate oxidation with concentrated sulfuric acid. The calibration curve was established and samples were read in spectrophotometer. As a result of this research it was obtained the following quantity of organic carbon in the Chocaví moor: soil 3,39% with 60-120 cm depth; soil 6,21% with 0-60 cm of depth; at the root of pad 40,03%, pad 41,00%, straw root 43,76%, traw 45,84%, braid 49,09% and root braid 50,87%. Thus, it is concluded that the average of organic carbon for biomass is 44,12% and for soil with 4,80%, in which the hypothesis proposed is accepted. It was evidenced that the activities of burning grassland for biomass regrowth affected the moor causing organic carbon loss in biomass of 9%; in grazing activities with 4% of organic carbon, being the soil the most affected component. It is recommended to report the findings of this research to the control institutions such as: the Ministry of Environment and to non-profit entities to safeguard the moor in Chocaví community which is a water sours and carbon accumulation.