Variación del stock de carbono en plantaciones forestales y bosques nativos de la Ecorregión del Bosque Atlántico del Alto Paraná, Paraguay

Jazmín Guadalupe Ojeda Rojas; Stella Mary  Amarilla Rodríguez; Lucía Janet  Villalba Marín

doi:10.18004/investig.agrar.2022.junio.2401701

Authors

Jazmín Guadalupe Ojeda Rojas AgroParisTech. Université Paris-Saclay. París, Francia. https://orcid.org/0000-0003-0670-6891
Stella Mary Amarilla Rodríguez Universidad Nacional de Asunción, Facultad de Ciencias Agrarias. San Lorenzo, Paraguay https://orcid.org/0000-0002-0975-0620
Lucía Janet Villalba Marín Universidad Nacional de Asunción, Facultad de Ciencias Agrarias. San Lorenzo, Paraguay https://orcid.org/0000-0001-5249-8259

DOI:

https://doi.org/10.18004/investig.agrar.2022.junio.2401701

Keywords:

carbon stock, changes land use, ecosystems services

Abstract

The study of the role played by soils in the provision of ecosystem services is incipient in our country, and requires adequate attention with emphasis from academic and scientific action; since they constitute the most complex group of ecosystem services because they include formation processes and other relevant natural cycles (carbon, nitrogen and others). The historical background of changes in land use in the Eastern Region and the current progressive trend in the Western Region lead to propose research that contributes to its economic and social valuation for the purposes of protection and sustainable use. The research was carried out in the department of Alto Paraná and aimed to estimate the carbon stock and its variation for two land uses (forest plantations and native forests) in the Alto Paraná Atlantic Forest ecoregion. The InVEST model was used to estimate the carbon stock, with the use of data from four carbon reservoirs (above and belowground biomass, litter and soil carbon) provided by INFONA, and the land use maps prepared for the years 1999 and 2014. The results of the InVEST model revealed the release of 6.7 Mt of carbon stored in forest soils, and 0.3 Mt of carbon fixed in forest plantation soils. As a conclusion, there is a variation in the carbon stock of native forest areas and forest plantations that can be explained in part by the influence of climatic, lithological, topographic and hydrological factors, as well as by characteristics of the vegetation, microbial activity and soil properties related to management practices.

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