A scientometric review of research on saprolite in Brazil from 1990 to 2022

Silva, Luis F. V. da; Pedron, Fabrício de A.; Santos, Jean C. B. dos; Pinto, Antônio A.; Azevedo, Antônio C. de

doi:10.1590/1807-1929/agriambi.v29n1e280446

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Review • Rev. bras. eng. agríc. ambient. 29 (1) • Jan 2025 • https://doi.org/10.1590/1807-1929/agriambi.v29n1e280446 copy

A scientometric review of research on saprolite in Brazil from 1990 to 2022¹ 1 Research developed at Universidade de São Paulo/Escola Superior de Agricultura “Luiz de Queiroz”/Departamento de Solos e Nutrição de Plantas, Piracicaba, SP, Brazil

Uma revisão cienciométrica da pesquisa sobre saprolito no Brasil de 1990 a 2020

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The consumption of atmospheric carbon dioxide by weathering buffers the greenhouse effect on Earth on a geological timescale. This mechanism is called the silicate carbon sink (SCS). Saprolite represents part of the weathering front of the Earth’s mantle, but historically, it has not received much attention from geoscientists. On a global scale, Brazil is the largest contributor to the SCS and the fourth largest contributor to the number of saprolite publications. In this study, Brazilian scientific production on the subject from 1990 to 2022 was assessed, considering publications indexed in the Web of Science, SciELO and Scopus databases. One hundred-eighty scientific articles were retrieved. In the last decade, seven articles were published per year. Over the 32 years under consideration, the number of articles on saprolite has increased. Most of the studies were concentrated in the southeastern region of Brazil, where the state of Minas Gerais led in terms of the number of publications (28.49%). The main areas in which the articles were published were related to ecology, Earth, and marine; however, they were cited by several others, including the areas of health and politics. A comparison of the number of publications per basin and the size of the SCS showed that there were fewer studies from the Amazon Basin than from the Paraná Basin. In conclusion, the geographical frontier for the study of saprolite in the Brazilian territory is the Amazon River Basin, and the methodological frontier is related to fluid/gas dynamics and the role of microbes in weathering at depth.

Key words:
isalterite; isoalterite; CiteSpace; science mapping; visual analytics

HIGHLIGHTS:

The Brazilian Amazon Basin captures 25% of the Silicate C Sink but had the smallest number of saprolite papers.

A total of 57.22% of the papers were published in the last decade.

The main groups of saprolite research were “pedology”, “geochemistry” and “landscape”.

Ranking	Articles	Journal	Authors/Year	Citations	DOI
1	Chemical and mineralogical properties of kaolinite-rich Brazilian soils	Soil Science Society of America Journal	Melo et al. (2001Melo, V. F.; Schaefer, C. E. G. R.; Novais, R. F.; Fontes, M. P. F. Chemical and mineralogical properties of kaolinite-rich Brazilian soils. Soil Science Society of America Journal, v.65, p.1324-1333, 2001. https://doi.org/10.2136/sssaj2001.6541324x https://doi.org/10.2136/sssaj2001.654132... )	158	10.2136/sssaj2001.6541324x
2	Brazilian Latosols and their B horizon microstructure as long-term biotic constructs	Australian Journal of Soil Research	Schaefer (2001Schaefer, C. E. R. Brazilian latosols and their B horizon microstructure as long-term biotic constructs. Australian Journal of Soil Research, v.39, p.909-926, 2001. https://doi.org/10.1071/SR00093 https://doi.org/10.1071/SR00093... )	156	10.1071/SR00093
3	(U/Th)/He geochronology of goethite and the origin and evolution of cangas	Geochimica et Cosmochimica Acta	Monteiro et al. (2014Monteiro, H. S.; Vasconcelos, P. M.; Farley, K. A.; Spier, C. A.; Mello, C. L. (U-Th)/He geochronology of goethite and the origin and evolution of cangas. Geochimica et Cosmochimica Acta, v.131, p.267-289, 2014. https://doi.org/10.1016/j.gca.2014.01.036 https://doi.org/10.1016/j.gca.2014.01.03... )	98	10.1016/j.gca.2014.01.036
4	Spatial variability of soil hydraulic conductivity along a tropical rainforest catena	Geoderma	Sobieraj et al. (2002Sobieraj, J. A.; Elsenbeer, H.; Coelho, E. M.; Newton, B. Spatial variability of soil hydraulic conductivity along a tropical rainforest. Geoderma , v.108, p.79-90, 2002. https://doi.org/10.1016/S0016-7061(02)00122-2 https://doi.org/10.1016/S0016-7061(02)00... )	95	10.1016/S00167061(02)00122-2
5	Podzolization as a deferralitization process: A study of an Acrisol-Podzol sequence derived from Paleozoic sandstones in the northern upper Amazon Basin	European Journal of Soil Science	Nascimento et al. (2004Nascimento, N. R.; Bueno, G. T.; Fritsch, E.; Herbillon, A. J.; Allard, T.; Melfi, A. J.; Astolfo, R.; Boucher, H.; Li, Y. Podzolization as a deferralitization process: a study of an acrisol-podzol sequence derived from palaeozoic sandstones in the northern upper Amazon Basin. European Journal of Soil Science, v.55, p.523-538, 2004. https://doi.org/10.1111/j.1365-2389.2004.00616.x https://doi.org/10.1111/j.1365-2389.2004... )	88	10.1111/j.13652389.2004.00616x
6	Landslide initiation in saprolite and colluvium in southern Brazil: Field and laboratory observations	Geomorphology	Lacerda (2007Lacerda, W. A. Landslide initiation in saprolite and colluvium in southern Brazil: Field and laboratory observations. Geomorphology, v.87, p.104-119, 2007. https://doi.org/10.1016/j.geomorph.2006.03.037 https://doi.org/10.1016/j.geomorph.2006.... )	88	10.1016/j.geomorph.2006.03.037
7	Effects of lime on permeability and compressibility of two tropical residual soils	Journal of Environmental Engineering	Galvão et al. (2004Galvão, C. B.; Elsharief, A.; Simões, G. F. Effects of lime on permeability and compressibility of two tropical residual soils. Journal of Environmental Engineering, v.130, p.1-9, 2004. https://doi.org/10.1061/(ASCE)0733-9372(2004)130:8(881) https://doi.org/10.1061/(ASCE)0733-9372(... )	75	10.1061/(ASCE)0733 (2004)130:8(881)
8	Nickel isotope fractionation during tropical weathering of ultramafic rocks	Chemical Geology	Ratié et al. (2015Ratié, G.; Jouvin, D.; Garnier, J.; Rouxel, O.; Miska, S.; Guimarães, E.; Vieira, L. C.; Sivry, Y.; Zelano, I.; Pelletier, E. M.; Thil, F.; Quantin, C. Nickel isotope fractionation during tropical weathering of ultramafic rocks. Chemical Geology, v.402, p.68-76, 2015. https://doi.org/10.1016/j.chemgeo.2015.02.039 https://doi.org/10.1016/j.chemgeo.2015.0... )	75	10.1016/j.chemgeo.2015.02.039
9	Controlling factors of gullying in the Maracujá Catchment, southeastern Brazil	Earth Surface Processes	Bacellar et al. (2005Bacellar, L. A. P.; Coelho Neto, A. L.; Lacerda, W. A. Controlling factors of gullying in the maracuja catchment, southeastern Brazil. Earth Surface Processes and Landforms, v.30, p.1369-1385, 2005. https://doi.org/10.1002/esp.1193 https://doi.org/10.1002/esp.1193... )	75	10.1002/esp.1193
10	Lateritic nickel deposits of Brazil	Mineralium Deposita	Oliveira et al. (1992Oliveira, S. M. B.; Trescases, J. J.; Melfi, A. J. Lateritic nickel deposits of Brazil. Mineralium Deposita , v.27, p.137-146, 1992.)	72	10.1007/BF00197099

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[1] * Corresponding author - E-mail: vieira.silva@usp.br

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A scientometric review of research on saprolite in Brazil from 1990 to 20221 1 Research developed at Universidade de São Paulo/Escola Superior de Agricultura “Luiz de Queiroz”/Departamento de Solos e Nutrição de Plantas, Piracicaba, SP, Brazil

Uma revisão cienciométrica da pesquisa sobre saprolito no Brasil de 1990 a 2020

ABSTRACT

HIGHLIGHTS:

A scientometric review of research on saprolite in Brazil from 1990 to 2022¹ 1 Research developed at Universidade de São Paulo/Escola Superior de Agricultura “Luiz de Queiroz”/Departamento de Solos e Nutrição de Plantas, Piracicaba, SP, Brazil