Page 284 - LAS CIENCIAS AMBIENTALES EN EL ANTROPOCENO - DIGITAL(1)

two polygons of the affected area and dry weight were measured. An increase
as controls, samples were taken in the in organic matter, a decrease in pH in
unaffected area, one with vegetation the affected areas, a loss of moisture
and the other without vegetation; due to environmental exposure and
subsequently, the analysis of the the presence of ashes in the polygon in
physicochemical and microbiological which nitrogen-fixing bacteria showed a
properties of the samples was carried survival behavior due to the temporary
out, evaluating changes in bulk density, fertilization of ashes that increase their
moisture, organic matter, pH and metabolic activity, however phosphorus
evaluation of microbial populations such solubilizing bacteria suffered a greater
as nitrogen-fixing bacteria, phosphorus impact due to physicochemical stress
solubilizers, total heterotrophs and fungi derived from the conditions. From
and yeasts (Ana Magán, 2000). Finally, a the seedbed test it was determined
seedbed test was applied on a laboratory that an intervention in the primary
scale with the objective of evaluating post-fire stages is not feasible, due
the recovery potential of the selected to the unpredictable behavior of
bacteria in complying with the nitrogen the microorganisms and unstable
fixing and phosphorus solubilizing mutualistic interactions, besides the
activities through the bioaugmentation ecosystem is capable of recovering
and natural attenuation treatments, naturally (Solera et al. 2014).
contrasting with the respective control
tests, in which parameters of moisture,
organic matter, length and biomass in

REFERENCIAS

Ana Magán, F.J. (2000). El fuego y los Cuesta, J.R.; Giraldo, I.O. (2013). Efectos www.eltiempo.com/vida/medio-
hongos del suelo. Cuadernos de la de los incendios forestales en las ambiente/colombia-perdio-178-
S.E. C.F, No 9, 101-107. propiedades del suelo. Estado del 597-hectareas-de-bosque-
Barrios, N.E. (noviembre de 2007). arte. Cuaderno Activa, 59-67. en-2016-106332
Evaluación de medios de cultivo Groot, W.J.; Flannigan, M.D.; Stocks, Solera, J.M.; Guerrero, C. (2014).
altos y bajos en nutrientes para B.J. (2013). El Cambio Climático Efectos de los incendios forestales
la recuperación de heterótrofos y los Incendios Forestales. en las propiedades edáficas.
edáficos en la ecoregión cafetera Obtenido de USDA: https://www. Wall, A.E. (2004). Utilización de
de los andes. Obtenido de http:// fs.fed.us/psw/publications/ árboles fijadores de nitrógeno
www.javeriana.edu.co/biblos/ documents/psw_gtr245/es/ para la revegetación de suelos
tesis/ciencias/tesis112.pdf psw_gtr245_001.pdf degradados. Revista de la Facultad
Pardo, T. (6 de Julio de 2017). El de Agronomía, La Plata.
Tiempo. Obtenido de http://

275