Seasonal dynamics of CO2 profiles across a soil chronosequence, Santa Cruz, California

Marjorie S. Schulz; David A. Stonestrom; Guntram von Kiparski; Corey R. Lawrence; C.A. Masiello; Arthur F. White; John Fitzpatrick

doi:10.1016/j.apgeochem.2011.03.048

USGS · 70207965

Seasonal dynamics of CO2 profiles across a soil chronosequence, Santa Cruz, California

Marjorie S. Schulz·David A. Stonestrom·Guntram von Kiparski·Corey R. Lawrence·C.A. Masiello·Arthur F. White·John Fitzpatrick

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Abstract

Concentrations of CO 2 in soil atmosphere and CO 2 efflux were measured across a marine terrace soil chronosequence near Santa Cruz, California. Soil development, specifically the formation of an argillic horizon, has created a two-tier soil gas profile in the older terrace soils. The soil above the argillic horizon has seasonal variations in soil CO 2 associated with plant respiration. The older soils with dense argillic horizons maintain a year round ∼1%CO 2 below the argillic horizon. The CO 2 efflux during the growing season is higher on the older terraces.

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Applied Geochemistry Article

Source-reported bounding extent: 36.87302936279296° to 37.07490186820611° latitude; -122.28057861328124° to -121.83288574218749° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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Marjorie S. Schulz, David A. Stonestrom, Guntram von Kiparski, Corey R. Lawrence, C.A. Masiello, Arthur F. White, John Fitzpatrick. 2011. Seasonal dynamics of CO2 profiles across a soil chronosequence, Santa Cruz, California. https://doi.org/10.1016/j.apgeochem.2011.03.048

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