Soil seed bank contribution to the restoration of agroecosystems and forest fragments in the Espinal (Córdoba)

Background and aims: The most substantial global land use change is the transformation of native ecosystems into agroecosystems, leading to loss of  biodiversity and reduction of ecosystem services. Potentially, these degraded systems could be restored from their soil seed bank. Our aim was to asses...

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Autores principales: Piacenza, Melina S., Funes , Guillermo, Naldini, María B., Palchetti, María V., Kowaljow, Esteban
Formato: Artículo revista
Lenguaje:Español
Publicado: Sociedad Argentina de Botánica 2024
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Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/43133
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Sumario:Background and aims: The most substantial global land use change is the transformation of native ecosystems into agroecosystems, leading to loss of  biodiversity and reduction of ecosystem services. Potentially, these degraded systems could be restored from their soil seed bank. Our aim was to assess species richness and density of the soil seed bank along a structural complexity gradient inagroecosystems and Espinal forest fragments. Furthermore, we compared species composition between the soil seed bank and established vegetation of the reference system to explore its potential for regeneration of native plant communities.M&M: A structural complexity gradient was created from vegetation and soil structural variables from plots with different land uses to analyze seed bank variables.Results: The highest richness was recorded in the pasture soil seed bank, followed by the forests. The highest density and similarity to the established vegetation of the reference system was registered in the forests. Herbaceous species predominated in all plots. With the exception of Celtis tala, seeds of dominant woody species from the reference system were not observed.Conclusions: The pasture seed bank may be particularly relevant in the early stage of native forest restoration, especially if the aim is to reduce costs. However, the contribution of the seed bank to Espinal forests recovery in short to medium term is limited due to its low similarity to reference system.