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Forests 2016, 7(4), 76; doi:10.3390/f7040076

Ecofunctional Traits and Biomass Production in Leguminous Tree Species under Fertilization Treatments during Forest Restoration in Amazonia

1
National Institute of Amazonian Research, Laboratory of Plant Physiology and Biochemistry, Ave. André Araújo, 2936, Aleixo, Manaus, AM 69011-970, Brazil
2
Federal University of the Amazon, Ave. Gal. Rodrigo Otávio Jordão Ramos, 3000, Coroado, Manaus, AM 69077-000, Brazil
*
Author to whom correspondence should be addressed.
Academic Editors: Philip J. Polglase and Timothy A. Martin
Received: 21 December 2015 / Revised: 4 March 2016 / Accepted: 18 March 2016 / Published: 12 April 2016
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Abstract

Background: Choosing the correct species and fertilization treatments is a determining factor in the success of forest restoration. Methods: A field study was conducted in a degraded area near the Balbina hydroelectric dam in Amazonas State (AM), Brazil, to evaluate two hypotheses: (i) leguminous tree species exhibit differences in growth, leaf nutrient content, and photosynthetic nutrient use efficiencies; and (ii) differences in these characteristics depend on the fertilization treatments to which the species have been subjected. Dipteryx odorata, Inga edulis and Schizolobium amazonicum were subjected to the following treatments: (T1) unfertilized control; (T2) post-planting chemical fertilization; (T3) post-planting organic fertilization and (T4) combined chemical and organic post-planting fertilization. Results: In general, I. edulis had the highest absolute growth rate of biomass under all of the fertilization treatments. I. edulis and S. amazonicum showed the highest growth rates under the T4 treatment. D. odorata showed the greatest responses under the T2 and T4 treatments. Native leguminous trees with higher photosynthetic performance and better nutrient use efficiency exhibited greater growth and biomass production. Conclusion: The results suggest that an adequate balance between leguminous species selection and fertilization will aid in the success of forest restoration in Amazonia. View Full-Text
Keywords: degraded area; photosynthesis; Balbina hydroelectric dam; Dipteryx odorata; Inga edulis; Schizolobium amazonicum degraded area; photosynthesis; Balbina hydroelectric dam; Dipteryx odorata; Inga edulis; Schizolobium amazonicum
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Jaquetti, R.K.; Gonçalves, J.F.C.; Ferraz, J.B.S.; Ferreira, M.J.; Santos Junior, U.M. Ecofunctional Traits and Biomass Production in Leguminous Tree Species under Fertilization Treatments during Forest Restoration in Amazonia. Forests 2016, 7, 76.

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