| Texto completo | |
| Autor(es): Mostrar menos - |
Florentino, Antonio L.
;
de Andrade, Nariane
;
Mateus, Nikolas S.
;
Schiebelbein, Bruna E.
;
Rodrigues, Adam C.
;
Masullo, Liamara S.
;
V. Ferraz, Alexandre
;
Mariano, Eduardo
;
Andreote, Fernando D.
;
Cerri, Carlos E. P.
;
Cherubin, Mauricio R.
;
Filley, Timothy R.
;
Goncalves, Jose L. M.
;
Lavres, Jose
Número total de Autores: 14
|
| Tipo de documento: | Artigo Científico |
| Fonte: | SOIL & TILLAGE RESEARCH; v. 257, p. 12-pg., 2025-11-14. |
| Resumo | |
There is rising interest within the timber industry in using forest residues, such as leaves, branches, and bark, for bioenergy. However, environmental benefits of bioenergy production may be offset by negative effects on soil health (SH), plant nutrition, and forest productivity induced by intensive residue management. These trade-offs remain poorly quantified in tropical systems. We investigated the effects of forest residue removal (leaves, branches, bark, and litterfall) on SH by integrating physical, chemical, and biological indicators (at 0-20 cm depth) into SH index (SHI) and correlating them with soil C and N stocks, micronutrient (B, Cu, and Zn) accumulation, and biomass production in a 6.5-yr-old Eucalyptus plantation established on a tropical Rhodic Ferralsol. Overall, residue removal influenced 16 of 31 soil variables, decreased the SHI by 37 % compared with the residue maintenance treatment, reduced B, Cu, and Zn transfer within the soil-plant system, and lowered biomass production by 5-11 %, mainly in leaves, branches, and bark. Low SHI was more strongly associated with changes in soil chemical and biological indicators than with physical indicators. The SHI correlated positively with soil C stocks, total B, Cu, and Zn accumulation in trees, and biomass production. Forest residue removal negatively affected site quality for Eucalyptus cultivation, since residues supply nutrients and sustain essential soil functions, including nutrient cycling and C-N transformations. These effects are expected to intensify over successive rotations, demonstrating that intensive residue removal (e.g., full-tree harvesting) compromises the long-term productivity and sustainability of Eucalyptus plantations. (AU) | |
| Processo FAPESP: | 21/10573-4 - Centro de Pesquisa de Carbono em Agricultura Tropical (CCARBON) |
| Beneficiário: | Carlos Eduardo Pellegrino Cerri |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |
| Processo FAPESP: | 22/01698-0 - Dinâmica e ciclagem de boro, cobre e zinco em ecossistema florestal integrada ao manejo de resíduos e às transformações de carbono: consequências para a sustentabilidade da produtividade florestal |
| Beneficiário: | Antonio Leite Florentino |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 23/12181-1 - Indicadores de saúde do solo integrados ao manejo de resíduos florestais em plantações de eucalipto |
| Beneficiário: | Antonio Leite Florentino |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado |