Data/hora: 13/06/2024 10:51:32

Biblioteca(s): | Embrapa Solos.
Data corrente: | 15/03/2012
Data da última atualização: | 14/10/2021
Autoria: | OSTERREICHER-CUNHA, P.; VARGAS JUNIOR, E. do A.; ANTUNES, F. dos S.; MONTHÉ, G. P. B.; GUIMARÃES, J. R. D.; COUTINHO, H. L. da C.
Afiliação: | PUC-RIO DE JANEIRO; PUC-RIO DE JANEIRO; PUC-RIO DE JANEIRO; PUC-RIO DE JANEIRO; UFRJ; HEITOR LUIZ DA COSTA COUTINHO, CNPS.
Título: | Influence of soil and climate on carbon cycling and microbial activity of a heterogeneous tropical soil.
Ano de publicação: | 2012
Fonte/Imprenta: | Geomicrobiology Journal, v. 29, n. 5, p. 399-412, 2012.
DOI: | https://doi.org/10.1080/01490451.2011.575914
Idioma: | Inglês
Conteúdo: | This study presents differentiated behaviors of two facies of a tropical soil. Soil characteristics and microbiota, field-monitored for two years, showed that different water velocities originated diverse responses to rainfall; altered oxygenation and nutrient conditions resulted in differentiated carbon availability and cycling. The facies with lower carbon and water content supported a 35% less active but 3?4 timesmore efficientmicrobiota. Higher soil moisture in the silty facies (67%) led to increased carbon (12-fold) degradation and availability (3-fold), but not higher biomass. Soil and environmental conditions apparently rule microbiota metabolic state, hence the need to evaluate them as microbial growth support.
Palavras-Chave: | Carbon cycling; Carbon degradation; Hydraulic properties; Residual tropical soil; Soil microbiota.
Thesaurus Nal: | microbial activity.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Solos (CNPS)
Exemplares: | CNPS - (16245-1) - UPC - AP - DD -  -  - 2012.00034 - DIS