Search Results - "de Mello, W. Z"

Nitrogen cycling in tropical Atlantic Forest differing in exposure to urban atmospheric nitrogen deposition by Ponette-González, A. G., Perroni, Y., Weathers, K. C., de Souza, P. A., García-Oliva, F., de Mello, W. Z.

“…Background and aims Inorganic nitrogen (N)—ammonium (NH4+-N) and nitrate (NO3−-N)—deposition to tropical forests near urban areas frequently exceeds 5-10 kg…”
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Retention of phosphorus in highly weathered soils under a lowland Amazonian forest ecosystem by McGroddy, M. E., Silver, W. L., de Oliveira Jr, R. C., de Mello, W. Z., Keller, M.

“…The low available phosphorus (P) pools typical of highly weathered tropical forest soils are thought to result from a combination of export of phosphorus via…”
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Precipitation chemistry in the coast of the Metropolitan Region of Rio de Janeiro, Brazil by de Mello, W.Z

“…Rainwater analyses provide essential data for future estimates of regional biogeochemical cycles and impacts of acidic deposition on tropical ecosystems…”
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Hydrogeochemistry of Sand Pit Lakes at Sepetiba Basin, Rio de Janeiro, Southeastern Brazil by Marques, E. D, Sella, S. M, de Mello, W. Z, Lacerda, L. D, Silva-Filho, E. V

“…Four sand pit lakes, at the Rio de Janeiro Sand Mining District, were monitored from November 2003 to November 2005, in order to characterize their…”
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Nitrous oxide fluxes and nitrogen cycling along a pasture chronosequence in Central Amazonia, Brazil by Wick, B., Veldkamp, E., de Mello, W. Z., Keller, M., Crill, P.

“…We studied nitrous oxide (N2O) fluxes and soil nitrogen (N) cycling following forest conversion to pasture in the central Amazon near Santarém, Pará, Brazil…”
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Rainwater chemistry at the summit and southern flank of the Itatiaia massif, Southeastern Brazil by de Mello, William Z, de Almeida, Marcelo D

“…Wet deposition and related rainwater chemistry were studied at the Itatiaia massif, on which is settled the Itatiaia National Park (INP). Samples were…”
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Tropical deforestation: some effects on atmospheric chemistry by Goreau, Thomas J., William Z. de Mello

“…Measurements of carbon dioxide, nitrous oxide, and methane released from Amazonian soils show that tropical deforestation acts on a variety of time scales to…”
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Hydrogeochemestry of Sand Pit Lakes at Sepetiba Basin, Rio de Janeiro, Southeastern Brazil by Marques, ED, Sella, S M, de Mello, WZ, Lacerda, L D, Silva-Filho, E V

“…Hydrogeochemistry of Sand Pit Lakes at Sepetiba Basin, Rio De Janeiro, Southeastern Brazil was studied. Chloride, sulfate and nitrate determinations were…”
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