Data/hora: 25/06/2024 07:17:18

Biblioteca(s): | Embrapa Tabuleiros Costeiros.
Data corrente: | 18/11/2015
Data da última atualização: | 05/04/2016
Autoria: | ESCOBAR, I. E. C.; SANTOS, V. M.; SILVA, D. K. A. da; FERNANDES, M. F.; CAVALCANTE, U. M. T.; MAIA, L. C.
Afiliação: | INDRA ELENA C. ESCOBAR; VILMA M. SANTOS; DANIELLE KARLA A. DA SILVA; MARCELO FERREIRA FERNANDES, CPATC; UIDED MAAZE T. CAVALCANTE; LEONOR C. MAIA.
Título: | Changes in microbial community structure and soil biological properties in mined dune areas during re-vegetation.
Ano de publicação: | 2015
Fonte/Imprenta: | Environmental Management, Ney York, v. 55, n. 6, p. 1433-1445, jun. 2015.
Idioma: | Português
Conteúdo: | The aim of this study was to describe the impact of re-vegetation on the restoration of microbial community structure and soil microbiological properties insand dunes that had been affected by mining activity. Soil samples were collected during the dry and rainy seasons from a chronosequence (1, 9, 21 years) of re-vegetated dunes using a single preserved dune as a reference. The composition of the fatty acid methyl esters and soil microbial properties were evaluated. The results showed that the changes in microbial community structure were related to seasonal variations: biomarkers of Gram-positive bacteria were higher than Gram-negative bacteria during the dry season, showing that this group of organisms is more tolerant to these stressful conditions. The microbial community structure in the natural dune was less affected by seasonal variation compared to the re-vegetated areas, whereas the opposite was observed for microbiological properties. Thus, in general, the proportion of saprobic fungi was higher in the natural dune, whereas Gram-negative bacteria were proportionally more common in the younger areas. Although over time the re-vegetation allows the recovery of the microbial community and the soil functions, these communities and functions are different from those found in the undisturbed areas.
Palavras-Chave: | Microbio.
Thesagro: | Biomassa; Solo.
Categoria do assunto: | --
Registro original: | Embrapa Tabuleiros Costeiros (CPATC)
Exemplares: | CPATC - (24265-1) - UPC - AP - DD -  -  -  - DIS