Almacenamiento de carbono en banano orgánico en el sitio palo marcado provincia de el Oro Ecuador

The objective of reducing atmospheric CO2 is related to the use of land and the levels of carbon (C) stored by the soil; which implies that the execution of activities aimed at maintaining a positive carbon balance (greater absorption than emission) requires a greater knowledge of carbon dynamics. In this research, carbon capture was quantified in soil cultivated with an organic-type Philippine banana, in front of a soil with previous use of primary forest at various depths (0-10, 10-20 and 20-30, 30-40 and 40- fifty). For this, 5 plots were established for the use of soil from which the samples were taken (n = 50) in the proposed strata, determining some physical and chemical properties such as: Dry soil color (Munsell Table), texture by Bouyoucos, apparent density (Da) by the cylinder method, pH (ratio 1:25), electrical conductivity (CE) with a potentiometer, organic matter (MO) by ignition at 250 ° C for two hours, and organic carbon (CO). The Da in forest showed rank of 1.26 g cm3 (0-10 cm) -1,82 g cm3 (40-50 cm) and in banana they were of 0,89 g cm3 (0-10 cm) -1,36 g cm3 (10-20 cm). The clay in forest the highest average was 33.56% (40-50 cm) higher than the average in banana (35.08) in the stratum 0.10 cm, and the lowest value was 23.82% and 28.83 (0 -10 cm) in both land use. The maximum pH range for forest was 6.26 (0-10 cm) and 5.57 (40-50 cm), in banana the maximum pH was 5.57 (0-10 cm), descending to pH 5, 23 (40-50 cm). EC in forest expressed values that indicated absence of salts (0.21dS at 0-10 cm, 0.07 dS at 40-50 cm), showing similar record in banana the EC (0.20 dS cm -1 to 0- 10 cm; 0.09 dS cm-1 to 40-50 cm). While the OM for forest in the first stratum (0-10 cm) was 4.17% and decreased to 2.18% in the last stratum, going from high to medium, while for banana the OM was 3.87% (0-10 cm) and 1.44% (40-50 cm). The cumulative total of C was higher in forest with ranges of 15.81 Mg ha-1 (0-10 cm) and 33.12 Mg ha-1 (40-50 cm) versus banana with 8 Mg ha-1 (0-9). 10 cm) and 18.47 Mg ha-1 (10-20 cm) with significant difference (p≤0,000). The cumulative total of C was 115.247 Mg ha-1 for forest and 75.469 Mg ha-1 with statistical difference of p = 0.001. No correlations were recorded (r = 0.6 **) between the clay, Da and CO properties, but between CO, MOS and pH. The model of organic production implanted in banana records less variation among the strata compared to the use of forest land. Being the physical properties of clay and Da that affected a greater retention of C in the last strata for forest. It is recommended to carry out this type of research on crops, to carry out a national inventory of C storage in soils and thus apply management plans that minimize the effects of CO2.

• Autore principale: Zumba Yunga, Javier Alejandro (author)
• Natura: bachelorThesis
• Pubblicazione: 2018
• Soggetti: SUELO; CARBONO; BANANO; BOSQUE
• Accesso online: http://repositorio.utmachala.edu.ec/handle/48000/12437