Autor(es)

Koutika, Lydie-Stella ; Zagatto, Mauricio Rumenos Guidetti ; Pereira, Arthur Prudencio de Araujo ; Miyittah, Michael ; Tabacchioni, Silvia ; Bevivino, Annamaria ; Rumpel, Cornelia

• Tipo de documento: Artigo Científico
• Fonte: FRONTIERS IN SOIL SCIENCE; v. 1, p. 7-pg., 2021-12-03.

Resumo

Plant and/or crop growth rely on nutrient dynamics driven by specific soil biota in different environments. This mini-review aims to provide an overview of interactions between soil organisms, nutrient dynamics, and C sequestration. To this end, we investigated published results from three forest plantations (eucalyptus monocultures and mixed plantations with N-2-fixing acacia) on tropical nutrient-poor soils. One case study is located in Central Africa (Congolese coastal plains) and two others in South America (Southeastern Brazil). Overall, the studies showed that soil biota activity exerted positive effects on (i) C accretion, as both soil carbon and belowground and aboveground biomass are driven and enhanced by soil biota; and (ii) on nutrient dynamics and biogeochemical cycles in nutrient-poor soil of tropical ecosystems, which are boosted following C accumulation. On the other hand, the pedoclimatic environment may potentially impact soil functioning of mixed-species plantations through its influence on the composition and activity of bacterial communities. Regardless of the potential risk of acacia invasiveness, benefits such as pulp, fuelwood, electric pole and non-timber products supply, have been reported in Central Africa. We, therefore, conclude that including N-2 fixing trees in forestry plantations as reported in this mini-review helps strengthen the links between soil biota, nutrient and SOC dynamics in mixed-species plantations on tropical nutrient-poor soils. (AU)

• Processo FAPESP: 16/01636-4 - O metagenoma de florestas mistas de Eucalyptus urograndis: Diversidade taxonômica e funcional do microbioma do solo associada à ciclagem do nitrogênio
• Beneficiário: Arthur Prudêncio de Araujo Pereira
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 10/16623-9 - Intensificação ecológica de plantações de eucaliptos pela associação com espécies leguminosas arbóreas fixadoras de nitrogênio
• Beneficiário: José Leonardo de Moraes Gonçalves
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 16/18944-3 - Mudanças climáticas e eficiência energética na agricultura: um enfoque em estresse hídrico, manejo orgânico e biologia do solo
• Beneficiário: Elke Jurandy Bran Nogueira Cardoso
• Modalidade de apoio: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático
• Processo FAPESP: 17/16610-3 - Plantações intercaladas de Eucalyptus grandis e Acacia mangium: o microbioma do ciclo do nitrogênio na interface solo e serapilheira
• Beneficiário: Arthur Prudêncio de Araujo Pereira
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado