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Physical and chemical matrix effects in soil carbon quantification using laser-induced breakdown spectroscopy
(2014)
Advanced field methods of carbon (C) analysis should now be capable of providing repetitive, sequential measurements for the evaluation of spatial and temporal variation at a scale that was previously unfeasible. Some ...
Electrostatic instabilities triggered by finite amplitude Alfvén/ion-cyclotron waves and relative drifts among the ion components in the magnetosphere
(Blackwell Publishing Ltd, 2008)
Alfvén/ion-cyclotron waves have been observed in several regions of the magnetosphere. Parametric decays of finite amplitude Alfvén/ion- cyclotron waves in the presence of He+ ions and a mixed population of thermal and hot ...
Spatial distribution of the eddy diffusion coefficients in the plasma sheet during quiet time and substorms from THEMIS satellite data
(Blackwell Publishing Ltd, 2011)
During the last decade, a number of studies have shown that turbulent processes in the plasma sheet are very important for the analysis of the formation of quasi-stable plasma sheet configurations. The existence of this ...
Characterization of nicosulfuron availability in aged soils
(AMER CHEMICAL SOC, 2008)
Sorption-desorption interactions of pesticides with soil determine their availability for transport, plant uptake, and microbial degradation. These interactions are affected by the physical-chemical properties of the ...
Formative pre-Hispanic agricultural soils in northwest Argentina
(Cambridge University Press, 2011-01)
Our study area is from an early agricultural archaeological site named "El Tolar" (1st to 9th century AD), located in Tafí Valley (Tucumán, northwest Argentina). The objective was to identify geochemical signatures generated ...
Nematofauna edáfica em sistemas de uso do solo na microrregião de Chapadinha-MA
(Universidade Estadual Paulista (Unesp), 2015-04-16)
The edaphic nematofauna is a group of organism's inhabitants of the land belonging to the nematode phylum. The biological activity of soil organisms such as the nematode is of great importance for the maintenance of the ...
Avaliação de atributos de Latossolo Bruno e de Terra Bruna Estruturada da região de Guarapuava, Paraná, por meio de sua energia refletida
(Sociedade Brasileira de Ciência do Solo, 1999-06-01)
The objective of this work was to study the spectral reflectance of a Brown Latosol (Haplohumox) and Terra Bruna Estruturada (Tropohumult) developed from volcanic acid rocks which occur in the center-south region of Paraná, ...
Formative pre-Hispanic agricultural soils in northwest Argentina
(Academic Press Inc Elsevier Science, 2011-01)
Our study area is from an early agricultural archaeological site named "El Tolar" (1st to 9th century AD), located in Tafí Valley (Tucumán, northwest Argentina). The objective was to identify geochemical signatures generated ...