Organic Carbon Sorption and Decomposition in Selected Global Soils

• Main Authors: S. Jagadamma, M. A. Mayes, J. M. Steinweg, G. Wang, W. M. Post
• Format: Dataset
• Language: unknown
• Published: ESS-DIVE: Deep Insight for Earth Science Data 2014
• Subjects: 54 ENVIRONMENTAL SCIENCES; soil carbon pools; respiration; mineralization; microbial biomass; fungal gene copies; incubations; 14C; EARTH SCIENCE > LAND SURFACE > SOILS; EARTH SCIENCE > AGRICULTURE > SOILS > CARBON; Arctic; Reykjanes; Iceland; Alaska
• Online Access: https://search.dataone.org/view/ess-dive-f89899fb176c4bc-20210930T014828188256

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. There are 25 *.csv data files included in this data set, User's Guide with a Data Dictionary, and two of the resulting published articles.