U.S. Department of EnergyOffice of Scientific and Technical Information
Changes in Soil Carbon Storage After Cultivation
Abstract
Previously published data from 625 paired soil samples were used to predict carbon in cultivated soil as a function of initial carbon content. A 30-cm sampling depth provided a less variable estimate (r2 = 0.9) of changes in carbon than a 15-cm sampling depth (r2 = 0.6). Regression analyses of changes in carbon storage in relation to years of cultivation confirmed that the greatest rates of change occurred in the first 20 y. An initial carbon effect was present in all analyses: soils very low in carbon tended to gain slight amounts of carbon after cultivation, but soils high in carbon lost at least 20% during cultivation. Carbon losses from most agricultural soils are estimated to average less than 20% of initial values or less than 1.5 kg/m2 within the top 30 cm. These estimates should not be applied to depths greater than 30 cm and would be improved with more bulk density information and equivalent sample volumes.For access to the data files, click this link to the CDIAC data transition website: http://cdiac.ess-dive.lbl.gov/programs/CSEQ/terrestrial/mann1986/mann1986.html
- Authors:
-
- Oak Ridge National Laboratory, Environmental Sciences Division; OSTI
- Publication Date:
- Other Number(s):
- doi:10.3334/CDIAC/TCM.007; cdiac:doi 10.3334/CDIAC/tcm.007
- Research Org.:
- Environmental System Science Data Infrastructure for a Virtual Ecosystem
- Sponsoring Org.:
- U.S. DOE > Office of Science (SC) > Biological and Environmental Research (BER) (SC-23)
- Subject:
- 54 ENVIRONMENTAL SCIENCES; Author; C cultivated (%); C uncultivated (%); CARBON SEQUESTRATION-TERRESTRIAL; Carbon; Carbon Cycle; Carbon Sequestration; Changes; Date of Publication; Deforestation; Lower Depth (cm); Nitrogen; Soil carbon; Soil taxation; Total C cultivated (km/m^2); Total C uncultivated (km/m^2); Upper Depth (cm); Years in cultivation; after; cultivation; soil organic Carbon
- OSTI Identifier:
- 1389524
- DOI:
- https://doi.org/10.3334/CDIAC/TCM.007
Citation Formats
Mann, L. K. Changes in Soil Carbon Storage After Cultivation. United States: N. p., 1985.
Web. doi:10.3334/CDIAC/TCM.007.
Mann, L. K. Changes in Soil Carbon Storage After Cultivation. United States. doi:https://doi.org/10.3334/CDIAC/TCM.007
Mann, L. K. 1985.
"Changes in Soil Carbon Storage After Cultivation". United States. doi:https://doi.org/10.3334/CDIAC/TCM.007. https://www.osti.gov/servlets/purl/1389524. Pub date:Thu Jul 25 00:00:00 EDT 1985
@article{osti_1389524,
title = {Changes in Soil Carbon Storage After Cultivation},
author = {Mann, L. K.},
abstractNote = {Previously published data from 625 paired soil samples were used to predict carbon in cultivated soil as a function of initial carbon content. A 30-cm sampling depth provided a less variable estimate (r2 = 0.9) of changes in carbon than a 15-cm sampling depth (r2 = 0.6). Regression analyses of changes in carbon storage in relation to years of cultivation confirmed that the greatest rates of change occurred in the first 20 y. An initial carbon effect was present in all analyses: soils very low in carbon tended to gain slight amounts of carbon after cultivation, but soils high in carbon lost at least 20% during cultivation. Carbon losses from most agricultural soils are estimated to average less than 20% of initial values or less than 1.5 kg/m2 within the top 30 cm. These estimates should not be applied to depths greater than 30 cm and would be improved with more bulk density information and equivalent sample volumes.For access to the data files, click this link to the CDIAC data transition website: http://cdiac.ess-dive.lbl.gov/programs/CSEQ/terrestrial/mann1986/mann1986.html},
doi = {10.3334/CDIAC/TCM.007},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jul 25 00:00:00 EDT 1985},
month = {Thu Jul 25 00:00:00 EDT 1985}
}