Clarindo, Analice Nunes; dos Santos, Sara Ramos; De Arruda, David Lukas; Camêlo, Danilo de Lima; da Rocha, Alexandre Tavares; de Souza Jr, Valdomiro Severino; Coe, Heloisa Helena Gomes; de Rezende, Carlos Eduardo; Corrêa, Marcelo Metri: Integrated thermal, elemental, phytolith, and FTIR characterization of soil organic matter from Catimbau National Park, northeastern Brazil [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.988140 (dataset in review)
Abstract:
Understanding the genesis of Spodosols in semi-arid environments remains a challenge due to the scarcity of pedogenetic markers under water-limited conditions. In this study, we integrated biological and organic proxies to reconstruct soil formation processes in Catimbau National Park (CNP), northeastern Brazil. Biological markers included phytolith assemblages, sponge spicules, diatom frustules, and freshwater algae cysts, which provided insights into vegetation turnover and episodic hydromorphic conditions. Organic markers comprised C/N ratios, stable isotopes (δ¹³C), thermogravimetry, and Fourier-transform infrared spectroscopy (FTIR), allowing us to track organic matter sources, preservation, and transformation pathways. Together, these datasets reveal that Spodosol development in CNP was strongly influenced by vegetation dynamics, pulses of moisture availability, and organo-mineral interactions, despite the prevailing semi-arid climate.
Coverage:
Median Latitude: -8.570709 * Median Longitude: -37.239525 * South-bound Latitude: -8.587000 * West-bound Longitude: -37.248272 * North-bound Latitude: -8.533758 * East-bound Longitude: -37.213330
Date/Time Start: 2021-03-16T00:00:00 * Date/Time End: 2021-10-14T00:00:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
2 datasets
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Datasets listed in this bundled publication
- Clarindo, AN; dos Santos, SR; De Arruda, DL et al. (in review): Multiproxy assessment of soil organic matter from Catimbau National Park, northeastern Brazil using thermal, elemental, and phytolith-based analyses. https://doi.pangaea.de/10.1594/PANGAEA.987910
- Clarindo, AN; dos Santos, SR; De Arruda, DL et al. (in review): Fourier-transform infrared (FTIR) spectra showing the main absorption bands of soils from Catimbau National Park, Pernambuco, Brazil. https://doi.pangaea.de/10.1594/PANGAEA.988126