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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):
ORCiD logo ; ORCiD logo ; ; ;
Publication Date:
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.
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.
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
@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}
}