pH of bulk precipitation during 3 consecutive annual courses in the Trachypogon savannas of the Orinoco Llanos, Venezuela

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Montes, R. ; San José, J. J. ; Garcia-Miragaya, J. ; Parra, N. (2011)
  • Publisher: Tellus B
  • Journal: Tellus B (issn: 1600-0889, eissn: 0280-6509)
  • Related identifiers: doi: 10.3402/tellusb.v37i4-5.15034
  • Subject:
    mesheuropmc: parasitic diseases

Bulk precipitation was daily collected and individual pH measured at the Trachypogon savannas, Venezuela, over a consecutive 3-year period. The volume-weighted mean pH as calculated, were 5.8, 5.6 and 5.8 for 1981, 1982 and 1983, respectively. The annual variation of pH ranged from 4.9 to 6.9: 4.8 to 6.3 and 5.4 to 6.8 units in 1981, 1982 and 1983, respectively. However, in this savanna area, which is relatively remote from heavy sources of industrial pollution, the annual proportion of daily rains with pH < 5.0, occurring mainly at the onset and end of the wet season, were 2.0,3.0 and 0.0% for 1981, 1982 and 1983, respectively.DOI: 10.1111/j.1600-0889.1985.tb00078.x
  • References (16)
    16 references, page 1 of 2

    Alexander, M. 1977. Introduction of soil microbiology, 2nd edition. Wiley & Sons. New York.

    Blydenstein. J. 1962. The Trachypogon savannas at the high Llanos. Bol. SOC. Venez. Cienc. Nal. 23, I39--206 (in Spanish).

    Conover. W. J. 1980. Practical nonparametric statistics. 2nd edition. Wiley & Sons, New York.

    Esso Resources Canada Ltd. 1979. Cold Lake Project. Final environmental impact assessment. Vol. 11. Biophys. Res. Impact Assessment. Canada, 4 16 pp.

    Galloway. J. N.. Likens. G. E.. Keene. W. C. and Miller, J. M. 1982. The composition of precipitation i n remote areas ofthe world. J . Geophys. Res. 87,8771-8786.

    Haines, B.. Jordan, C., Clark, H. and Clark, K. E. 1983. Acid rain in an Amazon rain forest. Tellus 35B, 17-80.

    Keene. W. C., Galloway. J. N. and Holden Jr. J. D. 1983. Measurement of weak organic acidity in precipitation from remote areas of the world. J . Geophvs. Res. 98, 5 122-5 130.

    Keene. W. C. and Galloway. J. N. 1984. Organic acidity in precipitation of North America. A m o s . Environ. 18.2491-2497.

    Lewis, W. M. Jr. 1981. Precipitation chemistry and nutrient loading by precipitation in a tropical watershed. Warer Resour. Res. 1 7 , 169-18 I .

    Lewis. W. M. Jr. and Weibezahn. F. H. 1981. Acid rain and major seasonal variation of hydrogen ion loading in a tropical watershed. Acta. Cient. Venez. 32. 236-238.

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