Soil organic carbon content and composition of 130-year crop, pasture and forest land-use managements

Conversion of former agricultural land to grassland and forest ecosystems is a suggested option for mitigation of increased atmospheric CO2. A Sharpsburg prairie loess soil (fine, smectitic, mesic Typic Argiudoll) provided treatments to study the impact of long-term land use on soil organic carbon (...

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Bibliographic Details
Published in:Global change biology 2004-01, Vol.10 (1), p.65-78
Main Authors: Martens, D.A, Reedy, T.E, Lewis, D.T
Format: Article
Language:English
Subjects:
agricultural land
agricultural soils
amino acids
biological activity in soil
carbohydrates
carbon dioxide
carbon sequestration
forests
grasslands
greenhouse gases
land use
land use change
lignin
lipids
long term experiments
nitrogen
organic C
pastures
phenolic acids
soil biological properties
soil organic carbon
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Summary:Conversion of former agricultural land to grassland and forest ecosystems is a suggested option for mitigation of increased atmospheric CO2. A Sharpsburg prairie loess soil (fine, smectitic, mesic Typic Argiudoll) provided treatments to study the impact of long-term land use on soil organic carbon (SOC) content and composition for a 130-year-old cropped, pasture and forest comparison. The forest and pasture land use significantly retained more SOC, 46% and 25%, respectively, compared with cropped land use, and forest land use increased soil C content by 29% compared with the pasture. Organic C retained in the soils was a function of the soil N content (r=0.98, P
ISSN:1354-1013
1365-2486
DOI:10.1046/j.1529-8817.2003.00722.x