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Author(s): ZHUANG, L.; CHEN, H.; YAN, P.; LIANG, X.; TEIXEIRA, W. G.; VAN GENUCHTEN, M. T.; LIN, K. Many anthropogenic soils, often referred to as red bed or purple soils, are distributed in various areas of southern China. Purple soils typically are highly weathered and often lead to natural and en... ... |
Author(s): CUNHA, T. J. F.; MADARI, B. E.; CANELLAS, L. P.; RIBEIRO, L. P.; BENITES, V. de M.; SANTOS, G. de A. The Brazilian Amazon basin in soil organic matter and fertility of anthropogenic dark earths (Terra Preta de Índio). |
Author(s): DURIGAN, M. R.; CHERUBIN, M. R.; CAMARGO, P. B. de; FERREIRA, J. N.; BERENGUER, E.; GARDNER, T. A.; BARLOW, J.; DIAS, C. T. dos S.; SIGNOR, D.; OLIVEIRA JUNIOR, R. C. de; CERRI, C. E. P. Anthropogenic forest disturbance and land use change (LUC) in the Amazon region is the main source of greenhouse gas emissions to the atmosphere in Brazil, due to the carbon (C) and nitrogen (N) emitt... ... |
Author(s): SCHMIDT, M. J.; GOLDBERG, S. L.; PERRON, J. T.; HECKENBERGER, M.; WATLING, J.; DORSHOW, W. B.; MORAES, B.; LIMA, H.; TEIXEIRA, W. G.; NEVES, E.; HOSLER, D.; WAURA, K.; KUIKURO, H.; KUIKURO, W.; KUIKURO, A.; FAUSTO, C.; FRANCHETTO, B. Amazonian dark earths (ADE) are anthropogenic soils with concentrated carbon and nutrients that formed mainly during the latter half of the Holocene, prior to the arrival of Europeans, but are still f... ... |
Author(s): NOVOTNY, E. H.; HAYES, M. H. B.; SONG, G.; AZEVEDO, E. R. de; BONAGAMBA, T. Humin, the humic fraction that is insoluble in water at all pH values, typically comprises more than 50% of soil organic matter (1). Because of the difficulties in isolation, humin compositions and pr... ... |
Author(s): SOUZA, K. W. de; LIMA, H. N.; SCHAEFER, C. E. G. R.; TEIXEIRA, W. G.; PULROLNIK, K.; CORRÊA, G. R. Despite the agricultural importance of India Black Earth (IBE) in the Amazon region, there are few studies that report on the relation between soil texture and chemical fertility of IBE. These soils o... ... |
Author(s): NOVOTNY, E. H.; AZEVEDO, E. R. de; BONAGAMBA, T. J.; CUNHA, T. J. F.; MADARI, B. E.; BENITES, V. de M.; HAYES, M. H. B. The compositions of humic acids (HAs) isolated from cultivated and forested "Terra Preta de Índio" or Amazonian Dark Earth soils (anthropogenic soils) were compared with those from adjacent non-anthro... ... |
Author(s): LINHARES, C. R.; LEMKE, J.; AMARAL, N.; AUCCAISE, R.; NOVOTNY, E. H. erras Pretas de Índios are anthropogenic soils found in the Amazon which have high carbon content, high fertility and high resilience. These characteristics are due to the pyrogenic character of their... ... |
Author(s): CUNHA, T. J. F.; MADARI, B. E.; MARTIN NETO, L.; CANELLAS, L. P.; SIMOES, M. L.; SILVA, W. T. L. da; MILORI, D. M. B. P.; RIBEIRO, L. P.; ANJOS, L. H. C.; SANTOS, G. de A. The humic acid fraction (HA) of some Amazonian dark earth soils (Terra Preta de Índio) from Brazil were characterized using ultraviolet-visible (UV-Vis), Fourier transform diffuse reflectance infrared... ... |
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