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Library Shrub (Prosopis velutina) encroachment in a semidesert grassland: spatial-temporal changes in soil organic carbon and nitrogen pools

Shrub (Prosopis velutina) encroachment in a semidesert grassland: spatial-temporal changes in soil organic carbon and nitrogen pools

Shrub (Prosopis velutina) encroachment in a semidesert grassland: spatial-temporal changes in soil organic carbon and nitrogen pools

Resource information

Date of publication
December 2008
Resource Language
ISBN / Resource ID
AGRIS:US201301539776
Pages
2420-2431

Recent trends of increasing woody vegetation in arid and semiarid ecosystems may contribute substantially to the North American C sink. There is considerable uncertainty, however, in the extent to which woody encroachment alters dryland soil organic carbon (SOC) and total nitrogen (TN) pools. To date, studies assessing SOC and TN response to woody plant proliferation have not explicitly assessed the variability caused by shrub age or size and subcanopy spatial gradients. These factors were quantified via spatially intensive soil sampling around Prosopis velutina shrubs in a semidesert grassland, using shrub size as a proxy for age. We found that bulk density increased with distance from the bole (P

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Authors and Publishers

Author(s), editor(s), contributor(s)

THROOP, HEATHER L.
ARCHER, STEVEN R.

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