Soil carbon and nitrogen changes in forests of Walker Branch Watershed, 1972 to 2004

D.W. Johnson; D.E. Todd; C.E. Trettin; J.S. Sedlinger

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Soil carbon and nitrogen changes in forests of Walker Branch Watershed, 1972 to 2004

Informally Refereed

Authors:

D.W. Johnson, D.E. Todd, C.E. Trettin, J.S. Sedlinger

Year:

2007

Type:

Scientific Journal

Station:

Southern Research Station

Source:

Soil Science Society of America Journal: Volume 71: Number:; ? September-October 2007

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Abstract

Changes in soil C and N concentrations and contents in four samplings during a 32-yr period on Walker Branch watershed in Tennessee were determined and compared with previously measured C and N fluxes and with changes in ecosystem C and N pools during this period. Soils showed significant increases in C and N concentrations in surface horizons from 1972 to 2004, and most of this increase occurred between 1972 and 1982.

Citation

Johnson, D.W.; Todd, D.E.; Trettin, C.E.; Sedlinger, J.S. 2007. Soil carbon and nitrogen changes in forests of Walker Branch Watershed, 1972 to 2004. Soil Science Society of America Journal: Volume 71: Number:; ? September-October 2007