Katherine E. Grant
Cornell University
9 Papers
9 Citations
Katherine E. Grant is an academic researcher from Cornell University. The author has contributed to research in topics: Soil water & Chemistry. The author has an hindex of 4, co-authored 5 publications.
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Papers
Mineral protection regulates long-term global preservation of natural organic carbon
Jordon D. Hemingway,Daniel H. Rothman,Katherine E. Grant,Sarah Z. Rosengard,Timothy I. Eglinton,Louis A. Derry,Valier Galy +6 more
TL;DR: In this article, the authors present a global dataset of the distributions of organic carbon activation energy and corresponding radiocarbon ages in soils, sediments and dissolved organic carbon and find that activation energy distributions broaden over time in all mineral-containing samples.
Subsoil organo-mineral associations under contrasting climate conditions
Thiago Massao Inagaki,Angela R. Possinger,Katherine E. Grant,Steffen A. Schweizer,Carsten W. Mueller,Louis A. Derry,Johannes Lehmann,Johannes Lehmann,Ingrid Kögel-Knabner +8 more
TL;DR: In this paper, a set of subsoil samples were collected throughout an elevation gradient (approximately 1800 −2400 −mm precipitation year−1 and 15 −24°C) on Kohala Mountain, Hawaii, and a combined approach of bulk soil analyses with mineral extractions and spectroscopic and spectromicroscopic analyses.
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Thermal oxidation of carbon in organic matter rich volcanic soils: insights into SOC age differentiation and mineral stabilization
TL;DR: In this article, four soil horizons (Oa, Bhs, Bs, Bg) were sampled from highly weathered 350-ka Pololu basaltic volcanics on the Island of Hawaii and analyzed by Ramped PyrOX (RPO) in both the pyrolysis (PY) and oxidation (OX) modes to separate a complex mixture of organic carbon into thermally defined fractions.
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Persistence of old soil carbon under changing climate: The role of mineral-organic matter interactions
Katherine E. Grant,Valier Galy,Negar Haghipour,Timothy I. Eglinton,Louis A. Derry,Louis A. Derry +5 more
TL;DR: In this article, the authors measured carbon isotope composition in bulk samples and extracted biomarkers for 4-8 horizons of 15 soil profiles to understand variability in organic carbon (SOC) age and persistence across incremental differences in mean annual precipitation.
9
Novel methods for determining the 14C age of microbially assimilated soil carbon
Karis J. McFarlane,Kari M. Finstad,Katherine E. Grant +2 more
- 15 May 2023
TL;DR: In this article , the authors compared the results of radiocarbon (14C) analysis of microbial biomolecules with those of laboratory incubations and found that in the upper 50 cm soil depths, the Δ14C from incubations is indistinguishable from that of extracted microbial biomass.