Organic Carbon Sorption and Decomposition in Selected Global Soils

doi:10.3334/CDIAC/ORNLSFA.002

Title: Organic Carbon Sorption and Decomposition in Selected Global Soils

Abstract

This data set reports the results of lab-scale experiments conducted to investigate the dynamics of organic carbon (C) decomposition from several soils from temperate, tropical, arctic, and sub-arctic environments. Results were used to test the newly developed soil microbe decomposition C model--Microbial-ENzyme-medicated Decomposition (MEND). We conducted a series of laboratory-scale experiments to better understand the microbial processing of organic C in response to diverse substrates and soil types, and to provide data to create an improved mechanistic model of cycling of organic C in soils. The interaction of diverse substrate types on a global suite of soils was determined in batch sorption experiments and the microbial decomposition of these compounds was determined by long-term incubation experiments. We used radiocarbon labeling approach in order to study the turnover of added substrate C through different C pools and to separately quantify the respiration of substrate C and native soil organic carbon.

Creator(s)/Author(s):

;

; Steinweg, J. M.; Wang, G.; Post, W. M.

Publication Date:: 2014-01-01

DOE Contract Number:: AC5207NA27344

Product Type:: Dataset

Research Org.:: ORNLTESSFA (Oak Ridge National Lab's Terrestrial Ecosystem Science Scientific Focus Area (ORNL TES SFA))

Sponsoring Org.:: USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23). Climate and Environmental Sciences Division

Subject:: 54 ENVIRONMENTAL SCIENCES

Keywords:: soil carbon pools, respiration, mineralization, microbial biomass, fungal gene copies, incubations, 14C

OSTI Identifier:: 1389508

DOI:: 10.3334/CDIAC/ORNLSFA.002

Citation Formats


                    Jagadamma, S., Mayes, M. A., Steinweg, J. M., Wang, G., and Post, W. M. Organic Carbon Sorption and Decomposition in Selected Global Soils.  United States: N. p., 2014. 
        Web.  doi:10.3334/CDIAC/ORNLSFA.002.

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                    Jagadamma, S., Mayes, M. A., Steinweg, J. M., Wang, G., & Post, W. M. Organic Carbon Sorption and Decomposition in Selected Global Soils.  United States.  doi:10.3334/CDIAC/ORNLSFA.002.

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                    Jagadamma, S., Mayes, M. A., Steinweg, J. M., Wang, G., and Post, W. M. 2014.  
"Organic Carbon Sorption and Decomposition in Selected Global Soils".  United States.  doi:10.3334/CDIAC/ORNLSFA.002.  https://www.osti.gov/servlets/purl/1389508. Pub date:Wed Jan 01 00:00:00 EST 2014

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@article{osti_1389508,

  title        = {Organic Carbon Sorption and Decomposition in Selected Global Soils},

  author       = {Jagadamma, S. and Mayes, M. A. and Steinweg, J. M. and Wang, G. and Post, W. M.},

  abstractNote = {This data set reports the results of lab-scale experiments conducted to investigate the dynamics of organic carbon (C) decomposition from several soils from temperate, tropical, arctic, and sub-arctic environments. Results were used to test the newly developed soil microbe decomposition C model--Microbial-ENzyme-medicated Decomposition (MEND). We conducted a series of laboratory-scale experiments to better understand the microbial processing of organic C in response to diverse substrates and soil types, and to provide data to create an improved mechanistic model of cycling of organic C in soils. The interaction of diverse substrate types on a global suite of soils was determined in batch sorption experiments and the microbial decomposition of these compounds was determined by long-term incubation experiments. We used radiocarbon labeling approach in order to study the turnover of added substrate C through different C pools and to separately quantify the respiration of substrate C and native soil organic carbon.},

  doi          = {10.3334/CDIAC/ORNLSFA.002},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {1}

}

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DOI: 10.3334/CDIAC/ORNLSFA.002

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