Hicks Pries, Sulman, et al 2018. In situ incubation of 13C-labeled litter in three soil pits at Blodgett Forest, CA from 2013 to 2016

Hicks Pries, Caitlin; Sulman, Benjamin; West, Corrina; O'Niell, Caitlin; Poppleton, Erik; Porras, Rachel; Castanha, Cristina; Zhu, Biao; Wiedemeier, Danniel; Torn, Margaret

doi:10.15485/2483574

Title: Hicks Pries, Sulman, et al 2018. In situ incubation of 13C-labeled litter in three soil pits at Blodgett Forest, CA from 2013 to 2016

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Abstract

Even though over half of the world's soil organic carbon (SOC) is stored in subsoils (>20 cm deep), and the old ages of subsoil OC indicate its cycling differs from surface SOC, there are few studies examining in situ decomposition processes in deep soils. The purpose of this dataset is to elucidate these processes. In this study we added 13C-labeled fine roots to 15, 55, and 95 cm depths of a well-characterized coniferous forest Alfisol and monitored the amount of root-derived C remaining over 6, 12, and 30 months. We recovered the root-derived C in microbial phospholipid fatty acids (PLFAs) after 6 months and in coarse (>2 mm) particulate, fine (<2 mm) particulate, and dense, mineral-associated pools after 6, 12, and 30 months. Overall, root decomposition in the first 6 months was similar among all depths but significantly diverged at 30 months with faster decomposition at 15 cm than at 95 cm. There were more fungal and Gram negative-associated PLFAs at 15 cm than at 95 cm, and 13C analysis revealed those microbial groups preferred the added root carbon to native SOC. Mineral-associations were not the cause of slower decomposition at depth because similar amounts of applied root C was recovered in the dense fraction at all depths.more »« less

Authors:

;

; West, Corrina; O'Niell, Caitlin; Poppleton, Erik; Porras, Rachel; Castanha, Cristina; Zhu, Biao; Wiedemeier, Danniel; Torn, Margaret

Dartmouth College; Dartmouth College
Oak Ridge National Laboratory
Peking University
Lawrence Berkeley National Laboratory

Publication Date:: Fri Dec 31 23:00:00 EST 2021

Research Org.:: Environmental System Science Data Infrastructure for a Virtual Ecosystem; Belowground Biogeochemistry Scientific Focus Area

Sponsoring Org.:: U.S. DOE > Office of Science > Biological and Environmental Research (BER)

Subject:: 54 ENVIRONMENTAL SCIENCES; EARTH SCIENCE > AGRICULTURE > SOILS > CARBON; EARTH SCIENCE > AGRICULTURE > SOILS > ORGANIC MATTER; EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS; EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > DECOMPOSITION; EARTH SCIENCE > LAND SURFACE > SOILS; EARTH SCIENCE > LAND SURFACE > SOILS > SOIL DEPTH

OSTI Identifier:: 2483574

DOI:: https://doi.org/10.15485/2483574

Citation Formats


                    Hicks Pries, Caitlin, Sulman, Benjamin, West, Corrina, O'Niell, Caitlin, Poppleton, Erik, Porras, Rachel, Castanha, Cristina, Zhu, Biao, Wiedemeier, Danniel, and Torn, Margaret. Hicks Pries, Sulman, et al 2018. In situ incubation of 13C-labeled litter in three soil pits at Blodgett Forest, CA from 2013 to 2016.  United States: N. p., 2021. 
        Web.  doi:10.15485/2483574.

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                    Hicks Pries, Caitlin, Sulman, Benjamin, West, Corrina, O'Niell, Caitlin, Poppleton, Erik, Porras, Rachel, Castanha, Cristina, Zhu, Biao, Wiedemeier, Danniel, & Torn, Margaret. Hicks Pries, Sulman, et al 2018. In situ incubation of 13C-labeled litter in three soil pits at Blodgett Forest, CA from 2013 to 2016.  United States.  doi:https://doi.org/10.15485/2483574

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                    Hicks Pries, Caitlin, Sulman, Benjamin, West, Corrina, O'Niell, Caitlin, Poppleton, Erik, Porras, Rachel, Castanha, Cristina, Zhu, Biao, Wiedemeier, Danniel, and Torn, Margaret. 2021.  
"Hicks Pries, Sulman, et al 2018. In situ incubation of 13C-labeled litter in three soil pits at Blodgett Forest, CA from 2013 to 2016".  United States.  doi:https://doi.org/10.15485/2483574.  https://www.osti.gov/servlets/purl/2483574. Pub date:Fri Dec 31 23:00:00 EST 2021

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@article{osti_2483574,

  title        = {Hicks Pries, Sulman, et al 2018. In situ incubation of 13C-labeled litter in three soil pits at Blodgett Forest, CA from 2013 to 2016},

  author       = {Hicks Pries, Caitlin and Sulman, Benjamin and West, Corrina and O'Niell, Caitlin and Poppleton, Erik and Porras, Rachel and Castanha, Cristina and Zhu, Biao and Wiedemeier, Danniel and Torn, Margaret},

  abstractNote = {Even though over half of the world's soil organic carbon (SOC) is stored in subsoils (>20 cm deep), and the old ages of subsoil OC indicate its cycling differs from surface SOC, there are few studies examining in situ decomposition processes in deep soils. The purpose of this dataset is to elucidate these processes. In this study we added 13C-labeled fine roots to 15, 55, and 95 cm depths of a well-characterized coniferous forest Alfisol and monitored the amount of root-derived C remaining over 6, 12, and 30 months. We recovered the root-derived C in microbial phospholipid fatty acids (PLFAs) after 6 months and in coarse (>2 mm) particulate, fine (<2 mm) particulate, and dense, mineral-associated pools after 6, 12, and 30 months. Overall, root decomposition in the first 6 months was similar among all depths but significantly diverged at 30 months with faster decomposition at 15 cm than at 95 cm. There were more fungal and Gram negative-associated PLFAs at 15 cm than at 95 cm, and 13C analysis revealed those microbial groups preferred the added root carbon to native SOC. Mineral-associations were not the cause of slower decomposition at depth because similar amounts of applied root C was recovered in the dense fraction at all depths. The largest difference among depths was in the amount of root C recovered in the coarse particulate fraction, which was greater at 95 cm (50%) than at 15 cm (15%). Slower decomposition of the particulate pool at depth likely contributed to the increase in C:N ratios and depletion of δ13C values below 60 cm depth in our soil profiles. Simulations of these soils using the CORPSE model, which incorporates microbial priming effects and mineral stabilization of SOC, reproduced patterns of particulate and mineral-associated SOC over both time and depth and suggested that a lack of priming by root exudates at depth could account for the slower decomposition rate of particulate root material. Decomposition of deep particulate SOC may increase if root exudation or dissolved OC transport to depth increases.This dataset includes (1) characterization of the soil pits prior to litter addition, (2) characterization of how the litter changed after 6, 12, and 30 months, and (3) the CORPSE model structure, parameterization, and output.},

  doi          = {10.15485/2483574},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Dec 31 23:00:00 EST 2021},

  month        = {Fri Dec 31 23:00:00 EST 2021}

}

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DOI: https://doi.org/10.15485/2483574

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