Search Results - "de Camargo, P.B."
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What drives the seasonality of photosynthesis across the Amazon basin? A cross-site analysis of eddy flux tower measurements from the Brazil flux network
Published in Agricultural and forest meteorology (2013)“…We investigated the seasonal patterns of Amazonian forest photosynthetic activity, and the effects thereon of variations in climate and land-use, by…”
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How old are large Brazil-nut trees (Bertholletia excelsa) in the Amazon?
Published in Scientia agricola (01-08-1994)“…The age of a large Brazil-nut tree (Bertholletia excelsa) is measured by radiocarbon dating, and a discussion is made about their importance in the Amazon…”
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Mercury Distribution in Medium-Size Rivers and Reservoirs of the São Paulo State (Southeast Brazil)
Published in Journal of environmental quality (2007)“…The aim of this work was to investigate mercury (Hg) levels in six meso-scale watersheds (Upper Paranapanema, Aguapeí, Peixe, São José dos Dourados,…”
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Estimation of symbiotic N2 fixation in an Amazon floodplain forest
Published in Oecologia (01-03-2006)“…Sustainable management for existing Amazonian forests requires an extensive knowledge about the limits of ecosystem nutrient cycles. Therefore, symbiotic…”
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Acid rain and nitrogen deposition in a sub-tropical watershed (Piracicaba): ecosystem consequences
Published in Environmental pollution (1987) (01-01-2003)“…Poorly buffered sandy soils may result in acidification problems for forests in this basin. High levels of wet N and acidic deposition were measured in…”
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Soil carbon dynamics in regrowing forest of eastern Amazonia
Published in Global change biology (01-08-1999)“…Summary The future flora of Amazonia will include significant areas of secondary forest as degraded pastures are abandoned and secondary succession proceeds…”
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Nitrogen transfer between high- and low-quality leaves on a nutrient-poor Oxisol determined by 15N enrichment
Published in Soil biology & biochemistry (2005)“…It has been proposed that the C/N ratio, or quality, of litter or mulch mixtures affects N release. Although total N release from these mixtures and the…”
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Organic matter quality in a soil cultivated with perennial herbaceous legumes
Published in Scientia agricola (01-02-2004)“…Using herbaceous legumes in agricultural systems yields great quantities of plant residues, allowing changes in soil organic matter quality and content over…”
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Land Application of Wastewater in Brazil - A scientific challenge: Chemical Characterization of Soil at Populina, São Paulo State (9 pp)
Published in Journal of soils and sediments (01-06-2005)“…The rapid increase of wastewater worldwide and the consequently urgently needed treatment measures towards disposal purposes has led to an expansion of…”
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Simulation of the effects of land use changes in soil carbon dynamics in the Piracicaba river basin, Sao Paulo state, Brazil
Published in Pesquisa agropecuaria brasileira (01-02-2000)Get full text
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Spatial and temporal water quality variability in the Piracicaba River Basin, Brazil
Published in Journal of the American Water Resources Association (01-10-1997)“…The spatial and temporal variability of dissolved oxygen (DO), biochemical oxygen demand (BOD), nitrate concentration and total coliform (TC) were investigated…”
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How old are large Brazil-nut trees (Bertholletia excelsa) in the Amazon? Que idade podem alcançar as castanheiras (Bertholletia excelsa) da Amazônia?
Published in Scientia agricola (01-08-1994)“…The age of a large Brazil-nut tree (Bertholletia excelsa) is measured by radiocarbon dating, and a discussion is made about their importance in the Amazon…”
Get full text
Journal Article