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Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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We determined the main components of the water balance for an undisturbed cerrado. Evapotranspiration ranged from 1.91 to 2.60mm per day for the dry and wet seasons, respectively. Canopy interception ranged from 4 to 20% and stemflow values were approximately 1% of gross precipitation. The average runoff coefficient was less than 1%, while cerrado deforestation has the potential to increase that amount up to 20-fold. The water storage may be estimated by the difference between P and ET.
Articles | Volume 19, issue 6
Hydrol. Earth Syst. Sci., 19, 2899–2910, 2015
https://doi.org/10.5194/hess-19-2899-2015
Hydrol. Earth Syst. Sci., 19, 2899–2910, 2015
https://doi.org/10.5194/hess-19-2899-2015

Research article 22 Jun 2015

Research article | 22 Jun 2015

The water balance components of undisturbed tropical woodlands in the Brazilian cerrado

P. T. S. Oliveira et al.

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Cited articles

Allen, R., Pereira, L., Rais, D., Smith, M., Solomon, K., and O'Halloran, T.: Crop Evapotranspiration-Guidelines for Computing Crop Water Requirements; FAO Irrigation and Drainage Paper 56; Food and Agriculture Organization of the United Nations: Rome, Italy, 1998.
Bäse, F., Elsenbeer, H., Neill, C., and Krusche, A. V.: Differences in throughfall and net precipitation between soybean and transitional tropical forest in the southern Amazon, Brazil, Agr. Ecosyst. Environ., 159, 19–28, https://doi.org/10.1016/j.agee.2012.06.013, 2012.
Cogo, N. P., Levien, R., and Schwarz, R. A.: Perdas de solo e água por erosão hídrica influenciadas por métodos de preparo, classes de declive e níveis de fertilidade do solo, R. Bras. Ci. Solo, 27, 743–753, https://doi.org/10.1590/S0100-06832003000400019, 2003.
Costa, M. H., Botta, A., and Cardille, J. A.: Effects of large-scale changes in land cover on the discharge of the Tocantins River, Southeastern Amazonia, J. Hydrol., 283, 206–217, https://doi.org/10.1016/S0022-1694(03)00267-1, 2003.
da Rocha, H. R. da, Freitas, H. C., Rosolem, R., Juárez, R. I. N., Tannus, R. N., Ligo, M. A., Cabral, O. M. R., and Dias, M. A. F. S.: Measurements of CO2 exchange over a woodland savanna (Cerrado Sensu stricto) in southeast Brasil, Biota Neotrop., 2, 1–11, https://doi.org/10.1590/S1676-06032002000100009, 2002.
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Short summary
We determined the main components of the water balance for an undisturbed cerrado. Evapotranspiration ranged from 1.91 to 2.60mm per day for the dry and wet seasons, respectively. Canopy interception ranged from 4 to 20% and stemflow values were approximately 1% of gross precipitation. The average runoff coefficient was less than 1%, while cerrado deforestation has the potential to increase that amount up to 20-fold. The water storage may be estimated by the difference between P and ET.
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