SciELO - Scientific Electronic Library Online

 
vol.89 issue3Forage potential of native ecotypes of Paspalum notatum and P. guenoarumAssessment of cow and farm level risk factors associated with Ureaplasma diversum in pasture-based dairy systems - A field study author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

Share


Anais da Academia Brasileira de Ciências

Print version ISSN 0001-3765On-line version ISSN 1678-2690

Abstract

JAQUETTI, ROBERTO K.  and  GONCALVES, JOSÉ FRANCISCO C.. Carbon and nutrient stocks of three Fabaceae trees used for forest restoration and subjected to fertilization in Amazonia. An. Acad. Bras. Ciênc. [online]. 2017, vol.89, n.3, pp.1761-1771.  Epub Aug 31, 2017. ISSN 0001-3765.  https://doi.org/10.1590/0001-3765201720160734.

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.

Keywords : biomass; degraded ecosystems; plant nutrition; tropical tree species.

        · text in English     · English ( pdf )