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IMPACTS OF SOYABEAN EXPANSION ON THE AMAZON ENERGY BALANCE: A CASE STUDY

Published online by Cambridge University Press:  06 May 2011

PAULO JORGE DE OLIVEIRA PONTE DE SOUZA*
Affiliation:
Social-Environmental and Water Resources Institute, Federal Rural University of Amazonia, PO Box 917, Belem-PA, Brazil
ARISTIDES RIBEIRO
Affiliation:
Department of Agricultural Engineering, Federal University of Viçosa, Zip Code 36570-000, Viçosa-MG, Brazil
EDSON JOSÉ PAULINO DA ROCHA
Affiliation:
Department of Meteorology, Federal University of Para, Zip Code 66075-110, Belem-PA, Brazil
MARCEL DO NASCIMENTO BOTELHO
Affiliation:
Social-Environmental and Water Resources Institute, Federal Rural University of Amazonia, PO Box 917, Belem-PA, Brazil
ADRIANO MARLISOM LEÃO DE SOUSA
Affiliation:
Social-Environmental and Water Resources Institute, Federal Rural University of Amazonia, PO Box 917, Belem-PA, Brazil
EVERALDO BARREIROS DE SOUZA
Affiliation:
Department of Meteorology, Federal University of Para, Zip Code 66075-110, Belem-PA, Brazil
JOSÉ RENATO BOUÇAS FARIAS
Affiliation:
Soyabean Ecophysiology, Brazilian Agricultural Research Corporation Zip Code 860001-970, Londrina-PR, Brazil
*
Corresponding author: paulo.jorge@ufra.edu.br

Summary

A micrometeorological experiment was carried out in an area of soyabean cultivation located in northeastern Para state, Brazil, in order to evaluate impacts on the local energy balance due to replacement of forests by soyabean. The meteorological data from forest ecosystems were collected in Caxiuanã forests located in central Para. The energy balance components were obtained using the Bowen ratio technique. Differences in energy balance components between ecosystems were significant during the soyabean growing season and more significant between growing seasons. During the soyabean growing season mean impacts of −15%, −9% and −27% on net radiation, latent heat flux (LE) and sensible heat flux (H), respectively, were observed. At specific soyabean stages, LE was higher than in the forest because of the high soyabean surface conductance of water vapour. However, during the production off-season the impacts were more significant (p < 0.05), showing a reduction of 78% in LE and a substantial increase in H (84%) because of the absence of vegetation cover over this period.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2011

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References

REFERENCES

Avissar, R., Silva Dias, P. L., Silva Dias, M. A. F. and Nobre, C. (2002). The large-Scale Biosphere-Atmosphere Experiment in Amazônia (LBA): Insights and future research needs. Journal of Geophysical Research 107 (D20): 54.154.6.Google Scholar
Arya, S. P. (1998). Introduction to Micrometeorology. New York, Academic Press.Google Scholar
Baldocchi, D. D., Verma, S. B. and Rosenberg, N. J. (1985). Water use efficiency in a soybean field: Influence of plant water stress. Agricultural and Forest Meteorology 34:5365.CrossRefGoogle Scholar
Bernacchi, C. J., Hollinger, S. E. and Meyers, T. (2005). The conversion of the corn/soybean ecosystem to no-till agriculture may result in a carbon sink. Global Change Biology 11:18671872.CrossRefGoogle Scholar
Betts, A. K., Desjardins, R. L. and Worth, D. (2007). Impact of agriculture, forest and cloud feedback on the surface energy budget in BOREAS. Agriculture and Forest Meteorology 142:156169.CrossRefGoogle Scholar
Carswell, F. E., Costa, A. C. L., Palheta, M., Malhi, Y., Meir, P., Costa, J. P. R., Ruivo, M. L., Leal, L. S. M., Costa, J. M. N., Clement, R. J. and Grace, J. (2002). Seasonality in CO2 and H2O flux at an eastern Amazonian rain forest. Journal of Geophysical Research 107 (D20): 8076.CrossRefGoogle Scholar
Cohen, J. C. P., Beltrão, J. C., Gandu, A. W. and Silva, R. R. (2007). Influence of the deforesting on the Amazon hydrological cycle. Science and Culture 59:3639. [In Portuguese with abstract in English].Google Scholar
Correia, F. W. S., Alvalá., R. C. S. and Manzi, A. O. (2006). Impact of land cover changes in the water balance in Amazonia: A GCM simulation study. Brazilian Journal of Meteorology. 21: 153–17. [In Portuguese with abstract in English].Google Scholar
Costa, M. H., Yanagy, S. M. N, Ponte De Souza, P. J. O., Ribeiro, A. and Rocha, E. J. P. (2007). Climate change in Amazonia caused by soybean cropland expansion, as compared to caused by pastureland expansion. Geophysical Research Letters 34:L07706.CrossRefGoogle Scholar
Costa, M. H. and Foley, J. A. (2000). Combined effects of deforestation and doubled atmospheric CO2 concentrations on the climate of Amazonia. Journal of Climate 13:1834.2.0.CO;2>CrossRefGoogle Scholar
Costa, J. P. R. (2008). Modelling and simulation of biosphere-atmosphere interactions on soybean planting in the Amazon. D.Sc. thesis. Federal University of Viçosa, Viçosa, MG, Brazil. [In Portuguese with abstract in English].Google Scholar
Chen, S., Chen, J., Lin, G., Zhang, W., Miao, H., Wei, L., Huang, J. and Han, X. (2009). Energy balance and partition in Inner Mongolia steppe ecosystems with different land use types. Agricultural and Forest Meteorology 129:18001809.CrossRefGoogle Scholar
Dickinson, R. E. and Henderson-Sellers, A. (1988). Modelling tropical deforestation: A study of GCM land-surface parameterizations, Quarterly Journal of the Royal Meteorological Society 114, 439462.Google Scholar
Fearnside, P. M. (2006). Deforestation in Amazonia: dynamics, impacts and control. Acta Amazonica 36:395400. [In Portuguese with abstract in English].CrossRefGoogle Scholar
Fontana, D. C., Berlato, M. A. and Bergamashi, H. (1991). Energy balance on irrigated and not irrigated soybean. Brazilian Agricultural Research 26:403410. [In Portuguese with abstract in English].Google Scholar
Gavilan, P. and Berengena, J. (2007). Accuracy of the Bowen ratio-energy balance method for measuring latent heat flux in a semiarid advective environment. Irrigation Science 25:127140.CrossRefGoogle Scholar
Houghton, R. A. (2005). Tropical deforestation as a source of greenhouse gases. In Tropical Deforestation and Climate Change. (EdsMoutinho, P. and Schwartzman, S.). Environmental Research Institute of the Amazon (IPAM) and Environmental Defense.Google Scholar
Malhi, Y. R., Aragão, L. E. O. C., Metcalfe, D. B., Paiva, R., Quesada, C. A., Almeida, A., Anderson, L., Brando, P., Chambers, J. Q., Costa, A. C. L., Hutyra, L. R., Oliveira, P., Patiño, S., Pyle, E. H., Robertson, A. L. and Teixeira, L. M. (2009). Comprehensive assessment of carbon productivity, allocation and storage in three Amazonian forests. Global Change Biology 15:12551274.CrossRefGoogle Scholar
Meyers, T. P. and Hollinger, S. R. (2004). An assessment of storage terms in the surface energy balance of maize and soybean. Agricultural and Forest Meteorology 125:105115.CrossRefGoogle Scholar
Moore, C. J. and Fisch, G. (1986). Estimating heat storage in Amazonian Tropical Forest. Agricultural and Forest Meteorology 38:147169.CrossRefGoogle Scholar
Nobre, C. A., Sellers, P. J. and Shukla, J. (1991). Amazonian deforestation and regional climate change. Journal of Climate 4:957987.2.0.CO;2>CrossRefGoogle Scholar
Pereira, A. R. (1998). Radiation regime of tropical rain forest. Brazilian Journal of Agrometeorology 5:18. [In Portuguese with abstract in English].Google Scholar
Perez, P. J., Castellvi, F., Ibañez, M. and Rosell, J. I. (1999). Assessment of reliability of Bowen ratio method for partitioning fluxes. Agricultural and Forest Meteorology 97:141150.CrossRefGoogle Scholar
Ramankutty, N., Gibbs, H. K., Achard, F., Defries, R., Foley, J. A. and Houghton, R. A. (2007). Challenges to estimating carbon emissions from tropical deforestation. Global Change Biology 13:5166.CrossRefGoogle Scholar
Randow, C. V., Manzi, A. O., Kruijt, B., Oliveira, P. J., Zanchi, F. B, Silva, R. L., Hodnett, M., Gash, J., Elbers, J. A. and Waterloo, M. (2004). Comparative measurements and seasonal variations in energy and carbon exchange over forest and pasture in South West Amazonia. Theoretical and Applied Climatology 78:526.Google Scholar
Rosenberg, N. J., Blad, B. L. and Verma, S. B. (1983). Microclimate: the biological environment. 2nd ed. New York: John Wiley.Google Scholar
Salati, E. (1978). Recycling of water in the Amazon, Brazil: an isotopic study. Geophysical Research. Water Resources Research 15:12501258.CrossRefGoogle Scholar
Sampaio, G., Nobre, C., Costa, M. H.., Satyamurt, P., Soares-Filho, B. S. and Cardoso, M. (2007). Regional climate change over eastern Amazonia caused by pasture and soybean cropland expansion. Geophysical Research Letters 34:L17709.CrossRefGoogle Scholar
Silva Dias, M. A. F., Cohen, J. C. P. and Gandu, A. W. (2005). Clouds, rain and biosphere interactions in Amazon. Acta Amazonica 35:215222. [In Portuguese with abstract in English].CrossRefGoogle Scholar
Simon, M. F. and Garagorry, F. L. (2005). The expansion of agriculture in the Brazilian Amazon. Environmental Conservation 32:203212.CrossRefGoogle Scholar
Soares-Filho, B. S., Nepstad, D. C., Curran, L., Cerqueira, G., Garcia, R. A., Ramos, C. A., Lefebvre, P., Schlesinger, P., Voll, E. and Mcgrath, D. (2005). Scenarios for Amazon deforestation. Advanced Studies 19: 138152. [In Portuguese].Google Scholar
Soares-Filho, B. S., Nepstad, D. C., Curran, L. M., Cerqueira, G. C., Garcia, R. A., Ramos, C. A., Voll, E., McDonald, A., Lefebvre, P. and Schlesinger, P. (2006). Modelling conservation in the Amazon basin. Nature 440:520523.CrossRefGoogle ScholarPubMed
Souza, P. J. O., Ribeiro, A., Rocha, E. J. P., Loureiro, R. S., Capela, C. and Souza, A. M. L. (2007). Soybean energy balance in area of advancing agricultural frontier in the Amazon. In 15th Brazilian Congress of Agrometeorology, Annals, 2–6 July, Aracaju.Google Scholar
Souza, P. J. O. P, Rocha, E. J. P., Ribero, A., Loureiro, R. S. and Bispo, C. J. C. (2008). Impacts caused on the albedo due to the advance of agricultural borders in Amazonia. Brazilian Journal of Agrometeorology 16:8795. [In Portuguese with abstract in English].Google Scholar
Souza Filho, J. D., Ribeiro, A., Costa, M. H. and Cohen, J. C. (2005). Control mechanisms of the seasonal variation of transpiration in a northeast Amazonian tropical rainforest. Acta Amazonica 35:223229. [In Portuguese with abstract in English].CrossRefGoogle Scholar
Suyker, A. E. and Verma, S. B. (2008). Interannual water vapor and energy exchange in an irrigated maize-based agroecosystem. Agricultural and Forest Meteorology 148:417427.CrossRefGoogle Scholar