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C-isotopic signatures and soil properties of Amazon basin oxisols - MaRDI portal

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C-isotopic signatures and soil properties of Amazon basin oxisols

From MaRDI portal



DOI10.5281/zenodo.2645510Zenodo2645510MaRDI QIDQ6720020

Dataset published at Zenodo repository.

Author name not available (Why is that?)

Publication date: 5 November 2019

Copyright license: No records found.



This dataset presents C isotopic data from two sites (Apu and Manacapuru)located in the state of Amazonas, Brazil. Soils were sampled at three time periods, under weak raining(March-2016), extreme dry (August-2016), and strongwet (March-2017)conditions.The dataset first presentsgeneral information about the site (on the tab site), followed bymore detailed information (on the tab profile) about both sampling locations. Thecoordinates, altitude, mean annual temperature, mean annual precipitation, soil order in USDA taxonomy and their respective land use categoriesand vegetation classificationsare described. On the layer tab,information about the soil depth, percent sand, silt and clay, pH CaCl2 and H2O, Organic and Total Carbon, total nitrogen and carbon/nitrogen ratio are described. The bulk C-isotopic signature is also listed on this tab as the Bulk Layer Δ14C and its standard deviation, Bulk Layer Fraction Modern and its standard deviation. TheIncubation tab describesdetails of thesoil incubations conductedat Apu and Manacapuru. Information about the material and length of incubation, as well as the CO2 fluxes over the duration of incubation are reported. The respired C-isotopic signature during the incubation is also given on this tab as the incubation Δ14C and its standard deviation, incubation Fraction Modern and its standard deviation.






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