Data/hora: 07/06/2024 11:30:07

Biblioteca(s): | Embrapa Florestas.
Data corrente: | 16/01/2023
Data da última atualização: | 31/03/2023
Autoria: | ERCOLE, T. M.; GOMES, J. B. V.; MOTTA, A. C. V.; FERREIRA, M. M.; INDA, A. V.; MANCINI, M.; CURI, N.
Afiliação: | TAMIRES MAIARA ERCOLE, UNIVERSIDADE FEDERAL DO PARANA; JOAO BOSCO VASCONCELLOS GOMES, CNPF; ANTÔNIO CARLOS VARGAS MOTTA, UNIVERSIDADE FEDERAL DO PARANA; MOZART MARTINS FERREIRA, UNIVERSIDADE DE LAVRAS; ALBERTO VASCONCELLOS INDA, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL; MARCELO MANCINI, UNIVERSIDADE DE LAVRAS; NILTON CURI, UNIVERSIDADE DE LAVRAS.
Título: | Aggregation stability and carbon pools in extremely kaolinitic soils from the east coast of Brazil as affected by land use changes.
Ano de publicação: | 2023
Fonte/Imprenta: | Sustainability, v. 15, n. 2, 1204, Jan. 2023.
DOI: | https://doi.org/10.3390/su15021204
Idioma: | Inglês
Conteúdo: | The aim of this study was to evaluate the differential response to land use changes between native forest and croplands regarding the quantitative soil variables of aggregate weight classes and different carbon pools in extremely kaolinitic soils from the east coast of Brazil. In the soil A horizon, the total (TOC) and dissolved (DOC) organic carbon contents were analyzed. In the 0?0.08 m soil layer, the weight and the organic carbon content (Cag) were determined for six size aggregate classes. The mean differential (&#916;) of each property for each area was calculated. Overall, the TOC and DOC were greater in the native forest sites over the counterpart cultivated sites within each area. The &#916;DOC of all the five areas were negative. The &#916;Cag of the 1?2 mm and 0.053?0.105 mm soil aggregate classes of Sooretama were the only ones with mean positive values. The ordination of the five areas by the &#916;Cag in the six soil aggregate size classes isolated Coruripe as the area with the most negative differentials, because of the forest conservation and management of the cropland. The differentials of organic carbon between forest and agricultural use of the analyzed properties did not reveal a possible effect of soil texture.
Palavras-Chave: | Agregação do solo; Carbon physical protection; Kaolinitic Soil; Matéria orgânica dissolvida.
Thesagro: | Carbono; Estrutura do Solo.
Thesaurus Nal: | Carbon; Dissolved organic carbon; Soil aggregation.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Florestas (CNPF)
Exemplares: | CNPF - (58470-1) - UPC - AP - DD -  -  -  - DIS