Citas bibligráficas
Macedo, W., (2023). Rol de la glomalina en el almacenamiento de carbono en suelos de ecosistemas con café en San Martín [Universidad Nacional de San Martín. Fondo Editorial]. http://hdl.handle.net/11458/5100
Macedo, W., Rol de la glomalina en el almacenamiento de carbono en suelos de ecosistemas con café en San Martín []. PE: Universidad Nacional de San Martín. Fondo Editorial; 2023. http://hdl.handle.net/11458/5100
@phdthesis{renati/1054485,
title = "Rol de la glomalina en el almacenamiento de carbono en suelos de ecosistemas con café en San Martín",
author = "Macedo Cordova, Wilder",
publisher = "Universidad Nacional de San Martín. Fondo Editorial",
year = "2023"
}
The Peruvian Amazon has been vulnerable in its forestry resources, which has generated the loss of organic carbon present in soils and aerial biomass. This study estimated the role of glomalin in soils carbon storage of coffee ecosystems in San Martin, located in the district of Tabalosos, San Martin. Carbon content was measured in different coffee and surrounding secondary forest and its correlation with different variables such as colonization and spore count of arbuscular mycorrhizal fungi (AMF), glomalin, soil pH and soil silt. The analyses were carried out using the R programming language version 4.0.2. To analyze the effect of the cover and depth factors and their interaction, the edaphic and mycorrhizal variable data were subjected to an analysis of variance and a Tukey mean comparison test with a 5% probability of error; in all scenarios, regardless of the level of correlation or significance, a linear regression model was fitted. The results of the study indicate that the highest colonization was found in coffee as a monoculture with 44,06 % on the surface, while the number of spores showed values of 86,86 and 49,84 per 100 grams of soil. The glomalin content showed significant differences in both vegetation cover and soil depths. The coffe system as polyculture at a shallow depth presented a higher pH of 6,75. Regarding the silt content, coffee with "guaba" showed the highest content with 23,28 %. Likewise, there was a higher concentration of aboveground carbon in secondary forest with a value higher than 70 t ha-1 and a higher content of belowground carbon in the same vegetation cover studied with 10,67 t ha-1. It is concluded that shade trees in coffee systems and secondary forests contribute to carbon storage; at the same time the glomalin content contributes to soil organic carbon sequestration.
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