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Title: 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.

Authors:

  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Product Type:
Dataset
Research Org.:
Environmental System Science Data Infrastructure for a Virtual Ecosystem (ESS-DIVE) (United States); Carbon Dioxide Information Analysis Center (CDIAC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Subject:
54 ENVIRONMENTAL SCIENCES
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., 2004. 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. 2004. "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 Jan 01 00:00:00 EST 2004
@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.},
doi = {10.3334/CDIAC/TCM.007},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {1}
}

Works referencing / citing this record:

Effect of Tillage Practices on Soil Properties and Crop Productivity in Wheat-Mungbean-Rice Cropping System under Subtropical Climatic Conditions
journal, January 2014


Impact of tropical land-use change on soil organic carbon stocks - a meta-analysis: SOIL ORGANIC CARBON AND LAND-USE CHANGE
journal, November 2010


Modelling soil carbon and nitrogen cycles during land use change. A review
journal, June 2010