Matschullat, Jörg (2024): Amazonas soil chemistry - 64 elements [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.968463 (DOI registration in progress)
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Abstract:
Motivated by previous largely absent high-quality soil chemical data, the samples were taken in parallel to repetitive soil respiration determinations at the same locations and sites (not part of this data set). Quality-controlled (GEMAS protocol) soil chemical data are presented (64 elements with all major and minor plus most trace elements) from two mineral soil layers (TOP = 0–20 cm; BOT = 30–50 cm). Material was taken repetitively in both dry and rainy season at the same 13 locations across the state of Amazonas, Brazil, from Feb/Mar 2016 to Feb/Mar 2017. The material roughly represents an area of 740,000 sqkm. All samples are from ferralsols/oxisols. Each location is divided into a forest site and a deforested (post-forest) site with different land use (pasture, plantation, agroforest). All work was part of the NOPA project EcoRespira-Amazon. Samples were taken with a manual auger using discardable glove-protected hands for handling. The fresh bulk samples were double-bagged in the field in Rilsan bags (water and gas tight) and transported to our labs at TU Bergakademie Freiberg. All materials were oven-dried at room temperature (25°C), crushed and aliquoted for the various chemical digestions, and the archive. Aliquots were analyzed after making pressed-powder pellets and glass-fusion discs by WD-XRF (major and minor elements, a few trace elements), after full multi-acid digestion by ICP-OES and ICP-QMS (some major and minor elements, all trace elements), and by elemental analysis after direct inweight for total and organic carbon, for nitrogen and sulfur.
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References:
Matschullat, Jörg; de Lima, Roberval Monteiro Bezerra; von Fromm, Sophie F; Coimbra Martins, Gilvan; Schneider, Mauana; Mathis, Armin; Malheiros Ramos, Andrea; Plessow, Alexander; Kibler, Kelly (2021): Sustainable land-use alternatives in tropical rainforests? Evidence from natural and social sciences. Zenodo, https://doi.org/10.5281/ZENODO.5769730
Matschullat, Jörg; de Lima, Roberval Monteiro Bezerra; von Fromm, Sophie F; Pospiech, Solveig; Ramos, Andrea M; Coimbra Martins, Gilvan; Lenhart, Katharina (in review): Carbon, nitrogen and sulfur (CNS) status and dynamics in Amazon basin upland soils, Brazil. https://doi.org/10.5194/soil-2019-16
Matschullat, Jörg; Martins, Gilvan Coimbra; Enzweiler, Jacinta; von Fromm, Sophie F; van Leeuwen, Johannes; de Lima, Roberval Monteiro Bezerra; Schneider, Mauana; Zurba, Kamal (2020): What influences upland soil chemistry in the Amazon basin, Brazil? Major, minor and trace elements in the upper rhizosphere. Journal of Geochemical Exploration, 211, 106433, https://doi.org/10.1016/j.gexplo.2019.106433
Funding:
Coverage:
Median Latitude: -5.482924 * Median Longitude: -61.122200 * South-bound Latitude: -9.750420 * West-bound Longitude: -67.198300 * North-bound Latitude: -2.533170 * East-bound Longitude: -50.970000
Date/Time Start: 2016-03-01T00:00:00 * Date/Time End: 2017-02-27T00:00:00
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License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
12008 data points
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