Title |
Carbon and nutrient stocks of three Fabaceae trees used for forest restoration and subjected to fertilization in Amazonia
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Published in |
Anais da Academia Brasileira de Ciências, September 2017
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DOI | 10.1590/0001-3765201720160734 |
Pubmed ID | |
Authors |
ROBERTO K. JAQUETTI, JOSÉ FRANCISCO C. GONÇALVES |
Abstract |
Amazonia is crucial to global carbon cycle. Deforestation continues to be one of the main causes of the release of C into the atmosphere, but forest restoration plantations can reverse this scenario. However, there is still diffuse information about the C and nutrient stocks in the vegetation biomass. We investigated the carbon and nutrient stocks of Fabaceae trees (Inga edulis, Schizolobium amazonicum and Dipteryx odorata) subjected to fertilization treatments (T1 - no fertilization; T2 - chemical; T3 - organic; and T4 - organic and chemical fertilization) in a degraded area of the Balbina Hydroelectric Dam, AM - Brazil. As an early successional species, I. edulis stocked more C and nutrients than the other two species independent of the fertilization treatment, and S. amazonicum stocked more C than D. odorata under T1 and T4. The mixed species plantation had the potential to stock 4.1 Mg C ha-1 year-1, while I. edulis alone could stock 9.4 Mg C ha-1 year-1. Mixing species that rapidly assimilate C and are of significant ecological and commercial value (e.g., Fabaceae trees) represents a good way to restore degraded areas. Our results suggest that the tested species be used for forest restoration in Amazonia. |
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Demographic breakdown
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Student > Doctoral Student | 5 | 12% |
Student > Ph. D. Student | 4 | 9% |
Professor | 3 | 7% |
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Unknown | 9 | 21% |
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Other | 5 | 12% |
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