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Vehicular particulate matter emissions in road tunnels in Sao Paulo, Brazil
(SPRINGER, 2009)
In the metropolitan area of Sao Paulo, Brazil, ozone and particulate matter ( PM) are the air pollutants that pose the greatest threat to air quality, since the PM and the ozone precursors ( nitrogen oxides and volatile ...
Carbonaceous Aerosols in Fine Particulate Matter of Santiago Metropolitan Area, Chile
(Hindawi, 2014)
Measurements of carbonaceous aerosols in South American cities are limited, and most existing data are of short term and limited
to only a few locations. For 6 years (2002–2007), concentrations of fine particulate matter ...
Organochlorine pesticides in lacustrine sediments and tilapias of Metztitlan, Hidalgo, Mexico
(Universidad de Costa Rica, 2008)
COMPARTIMENTOS DA MATÉRIA ORGÂNICA DO SOLO COMO INDICADORES DO SEQÜESTRO DE CARBONO EM SISTEMA PLANTIO DIRETO DE LONGA DURAÇÃO
(UNIVERSIDADE ESTADUAL DE PONTA GROSSABRAgriculturaPrograma de Pós-Graduação em AgronomiaUEPG, 2017)
Assessment of surf zone environmental variables in a southwestern Atlantic sandy beach (Monte Hermoso, Argentina)
(Springer, 2016-08)
The aim of this study was to investigate the temporal dynamics (monthly/tidal) of water temperature, salinity, chlorophyll-a (chlo-a), suspended particulate matter (SPM), particulate organic carbon (POC), and dissolved ...
Temporal variations of C, N, δ13C and δ15N in organic matter collected by a sediment trap in Cuenca Alfonso, Bahía de La Paz, SW Gulf of California
(Continental Shelf Research, 2010)
To monitor the composition and the vertical flux of particulate matter from the sea surface, a sediment trap was moored in Cuenca Alfonso, Bahı´a de La Paz, a zone of high productivity in the Southwestern Gulf of California. ...
Winter cover crops effects on soil organic carbon and soil physical quality in a typical argiudoll under continuous soybean cropping
(Sociedade Brasileira de Ciência do Solo, 2020-11-27)
The massive adoption of no-tillage (NT), along with the simplification of the cropping sequences has led to physical and chemical degradation of soils. To recover degraded soils, cover crops have been proposed as an ...
What is the impact of pasture reform on organic carbon compartments and CO2 emissions in the Brazilian Cerrado?
(Elsevier B.V., 2020-11-01)
The emission of CO2 from the soil in agricultural areas is the result of the interaction of several factors, including soil and crop management practices and local edaphoclimatic conditions. The dynamics of organic carbon ...
Soil aggregation according to the dynamics of carbon and nitrogen in soil under different cropping systems
(Empresa Brasil Pesq Agropec, 2016-09-01)
The objective of this work was to evaluate total soil carbon and nitrogen, as well as their contents in particulate and mineral-associated C fractions; to determine C stock and sequestration rates in the soil; and to verify ...
Deforestation impacts on soil organic carbon stocks in the Semiarid Chaco Region, Argentina
(Elsevier Science, 2017-01)
Land use change affects soil organic carbon (SOC) and generates CO2 emissions. Moreover, SOC depletion entails degradation of soil functions that support ecosystem services. Large areas covered by dry ...