Evaluación del contenido de carbono en las formaciones vegetales y en el suelo según su uso en tres agroecosistemas

Abstract

This research proposes: to evaluate the carbon content in plant formation in the soil according to the use in three agro-ecosystems, in the Naubug village parish Flores; a completely randomized design was used obtaining the following data: apparent density (g/cm3), organic matter (%), tree biomass and low vegetation (t/ha). The best results in terms of carbon in the vegetation were obtained in the lowland forest reaching a value of 91,64 t/ha. For the statistical analysis of this parameter, nonparametric tests (Kruskal Wallis test) were used because the data did not fulfill the assumptions of normality and homoscedasticity. In terms of carbon reserve in the soil, it was estimated that the cultivation of barley of the upper zone with an average of 110,60 t/ha contains the greatest amount of carbon, among the agro-ecosystems, the agro-ecosystem of the upper zone has the highest average with a value of 83,90 t/ha. For the total carbon content it was estimated that the live fence of native highland trees with an average of 113,45 t/ha captures more carbon; in terms of agro-ecosystems, the upper zone has the highest total carbon content with an average of 94,65 t/ha. In general, from the 1419 t/ha of carbon, which is total average calculated; the use live fences captures 46%, while agricultural use captures 33%, forest and non-used land capture 15% and 6%, respectively. The recommendation is to promote the use of live fences or native tree plantations on land that remains abandoned because live fences have proven to have a high potential for carbon capture and soil maintenance.

Key words: carbon, plant formations, biomass, soil, carbon evaluation.