Dynamics of dry mass and chemical properties of litter in Virola surinamensis and successional forest in eastern Amazon
Journal Title: Revista Verde de Agroecologia e Desenvolvimento Sustentável - Year 2017, Vol 12, Issue 1
Abstract
With the expansion of anthropogenic activities, the Amazon Rain Forest has suffered sweep changes. After the removing of vegetation, there is an abandonment of the ecosystems, allowing a natural resilience. In order to accelerating this process, it is performed the planting of several native species, to promote the nutrient cycling with the deposition of litter fall. Therefore, the objective of this research is to compare the dry mass deposition and the chemical properties in a successional forest ecosystem (FSU) and in Virola surinamensis Rol. (Ward.) (VSU) ecosystem. The experiment was conducted in the coastal tableland of lower in eastern Amazon, and the litter samples taken every two weeks for three years. The study showed that the FSU forest floor were significantly higher (p < 0.05) than the VSU in the stock of litter. The results of forest floor accumulation was 7.94 Mg ha-1 yr -1 and 6.30 Mg ha-1 yr -1 to FSU and VSU, respectively. About chemical properties of litter, K and Mn concentration and content were higher than VSU. To Ca and Mg the concentration was superior in VSU, but the content was not different to two ecosystems. The content and concentration of Fe in FSU, were smaller, and to the same variables, Cu and Zn were not different in the forest and in the monoculture. The deposition of litter and great of elements content showed higher values to successional forest ecosystem because of structural and floristic diversity of species.
Authors and Affiliations
Beatriz Cordeiro Costa, Patrícia Mie Suzuki, Vanda Maria Sales de Andrade, Francisco de Assis Oliveira, Walmer Bruno Rocha Martins
Keywords
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- EP ID EP251871
- DOI 10.18378/rvads.v12i1.4407
- Views 227
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