Water Typology in the Amazon: Close Correlation with the Hydrogeochemistry of River Basins
Aprile F.
*
Universidade Federal do Oeste do Pará, UFOPA - 68040-070, Pará, Brazil.
Darwich A. J.
Instituto Nacional de Pesquisas da Amazônia, INPA - 69060-001, Amazonas, Brazil.
Siqueira G. W.
Universidade Federal do Pará, UFPA – 66075-100, Pará, Brazil.
*Author to whom correspondence should be addressed.
Abstract
A study on the typology of Amazonian waters was developed in the North Geographic Region of Brazil, considering a set of historical data from 1995 to 2022. The objective was to discuss and point out which environmental parameters are considered preponderant within the classification criteria of Amazonian waters. Historical data on temperature, density, pH, conductivity, oxygen, transparency, light attenuation, turbidity, color, total and dissolved solids, hardness, alkalinity, CaCO3, BOD, COD, main cations and anions, iron, C, N and P fractions, silicate, trace elements (Al, Cu, Zn and Mn) and chlorophyll a were analyzed. The analysis comprised water samples from the National Hydrometeorological Network (Sub-Basins 10 to 19), with a total of 36 basins, including tributaries, lakes and adjacent streams. The historical series was statistically analyzed through the techniques of Cluster, Principal component analysis (PCA), Piper Diagram and image interpolation by the ordinary kriging method. The results indicated a strong seasonal trend, with an evident distinction between the flood and ebb periods. The typology of white, black and clear waters was also evidenced, this last group being an intermediate class to the others, due to the physical-chemical standards. The PCA highlighted the parameters conductivity, pH, calcium, bicarbonate and Dissolved inorganic carbon (DIC) (Factor 1), and turbidity and alkalinity (Factor 2) as preponderant in the water classification. The ionic balance demonstrated that the white waters stood out for the highest concentrations of calcium and magnesium. The results suggest a pattern of calcic waters oscillating towards sodic and carbonated waters, with a subgroup in the northern eastern region of seasonally sodic-chlorinated waters, due to the influence of ocean tides. Image interpolation suggested a predominance of white waters in the western southern zone (Western Amazon) and white waters transitioning to clear waters in the eastern zone (Eastern Amazon). The analysis also showed a predominant strip of black and clear waters in the northern zone, and a strip of white waters in the central Amazon.
Keywords: Amazon, electrical conductivity, pH, sioli’s classification, spatial similarity, water typology
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Rocha VM, Correia FWS, Silva PRT, Gomes WB, Vergasta LA, Moura RG et al. Precipitation recycling in the Amazon Basin: The role of moisture transport and surface evapotranspiration. Brazilian Meteorology Magazine. 2017;32(3):387-398. Portuguese.
Darwich AJ, Aprile F. Influence of limnological processes and water level variation on the biodiversity of Brazilian Amazon Lakes: An ecological approach. Journal of Applied Life Sciences International. 2022;25(5):1-8. Available:https://doi.org/10.9734/JALSI/2022/v25i530303
Aprile F, Darwich AJ. Lake stratification in the Brazilian Amazon: Types and the first description of permanent meromixia. Journal of South American Earth Sciences. 2023;124(104224):1-14. Available:https://doi.org/10.1016/j.jsames.2023.104224
Wilson HF, Xenopoulos MA. Effects of agricultural land use on the composition of fluvial dissolved organic matter. Nature Geoscience. 2009;2:37–41.
Sioli H. Das wasser in amazonasgebiet. Forsch. u. Fortschr., Berlin. 1950;26:274-280. German.
Sioli H. Some results and problems in Amazonian limnology. Northern Agronomic Institute, Technical Bulletin. 1951;24:1-44. Portuguese.
Gibbs RJ. The geochemistry of the Amazon River System: Part I. The factors that control the salinity and the composition and concentration of the suspended solids. Geol. Soc. of America Bulletin. 1967;78(10):1203-1232.
Stallard RF, Edmond JM. Geochemistry of the Amazon basin: 2. The influence of the geology and weathering environment on the dissolved load. J. Geophys. Res., Washington. 1983; 88:9671–9688.
Sioli H, Klinge H. Soils, Vegetation types and waters in the amazon. Bulletin of the Emílio Goeldi Museum of Paraense. 1962;1:1-18. Portuguese.
Melack JM, Hess LL. Remote sensing of the distribution and extent of wetlands in the Amazon basin. In: Junk WJ, Piedade MTF, Wittmann F, Schöngart J, Parolin P. (Eds). Amazon floodplain forests: Ecophysiology, biodiversity and sustainable management, ecological studies 210, Springer Verlag: Berlin. 2010;43–59. Available:http://10.1007/978-90-481-8725-6_3
Aprile F, Darwich AJ. Nutrients and water-forest interactions in an Amazon floodplain lake: an ecological approach. Acta Limnologica Brasiliensia. 2013;25(2):169-182. Available:http://dx.doi.org/10.1590/S2179-975X2013000200008
Hess LL, Melack JM, Affonso AG, Barbosa C, Gastil-Buhl M, Novo EMLM. Wetlands of the lowland Amazon basin: extent, vegetative cover, and dual-season inundated area as mapped with JERS-1 Synthetic Aperture Radar. Wetlands. 2015;35:745-756. Available:https://doi.org/10.1007/s13157-015-0666-y
ANA – National Water Agency. National Hydrometeorological Network. DNAEE basins. SGH/ANA. 2016. Accessed 19 March 2023. Available: http://metadados.ana.gov.br/geonetwork/srv/pt/main.home Portuguese.
APHA - American Public Health Association, AWWA - American Water Works Association & WEF - Water Environment Federation. Standard methods for examination of water and wastewater. 22nd ed. USA: APHA/AWWA/WEF; 2012.
Wetzel RG, Likens GE. Limnological analysis. Philadelphia: W. B. Saunders Co.; 2000.
Ward JH. Hierarchical grouping to optimize an objective function. Journal of the American Statistical Association. 1963; 58:236-244.
Piper AM. A graphic procedure in the geochemical interpretation of water analyses. Trans. Amer. Geophys. Union. 1944; 25:914-923.
Back W. Hydrochemical facies and ground-water flow in northern part of Atlantic Coastal Plain. Washington: U.S. Geol. Surv. Prof. Pap. 1966;498-A:42.
Mobüs G. Qualigraf: software for interpreting physicochemical analyzes, Beta version. Fortaleza: Cearense Foundation of Meteorology and Water Resources – FUNCEME; 2003.
Fittikau EJ, Junk WJ, Klinge H, Sioli H. Substrate and vegetation in the Amazon region. In: Dierschke I. (Ed.). Vegetation and Substrate. Vaduz: J.Cramer. 1975;73-90.
Sioli H. Amazon ecology fundamentals of the largest tropical forest region. 2nd ed., Petrópolis: Editora Vozes;. Portuguese; 1990
Boulet R, Lucas Y, Chauvel A, Ranzini G, Scatolini F. Oxisols-Spodossols Transition over the Barreiras Formation in the Manaus region, Amazon. R. Bras. Ci. Solo. 1984;8:325-335. Portuguese.
Mafra AL, Miklós AAW, Volkoff B, Melfi AJ. Pedogenesis in an Oxisol-Spodosol sequence in the Upper Rio Negro region, Amazonas. R. Bras. Ci. Solo. 2002;26(2):381-394. Portuguese.
Queiroz MMA, Horbe AMC, Seyler P, Moura CAV. Hydrochemistry of the Solimões River in the region between Manacapuru and Alvarães – Amazonas – Brazil. Acta Amazônica. 2009;39(4):943-952. Portuguese.
Aprile F, Lorandi R. Capacità di scambio cationico in terreni tropicali: Metodi analitici. Rome, Italy: Edizioni Accademiche Italiane.2020;248. Italian.
Marques JD, Luizão FJ, Teixeira W, Ferreira SJF. Variations in dissolved organic carbon and soil physical attributes under different land use systems in the Central Amazon (1) R. Bras. Ci. Solo. 2012;36:611-622. Portuguese.
Drever, James I. The Geochemistry of Natural Waters. London: Prentice–Hall. 1982;388.
BRAZIL. Ministry of the Environment, National Environmental Council [CONAMA]. Resolution N° 357, Ma, 2005. Official Gazette of the Federative Republic of Brazil, Brasília; 2005.
Accessed 22 July 2023. Available: http://www.mma.gov.br/conama Portuguese.
Silva M do SR, Miranda SAF, Domingos RN, da Silva SLR, Santana GP. Classification of Amazon rivers: a strategy for preserving these resources. HOLOS Environment. 2013; 13(2):163-174. Available:https://doi.org/10.14295/holos.v13i2.7344.