Rocky Mountain Research Station Publications
RMRS Online Publication - Journal
Articles, External Publications, and Special Reports
Woodland expansion's influence on belowground carbon and nitrogen in the Great Basin U.S.
Rau, Benjamin M.; Johnson, Dale W.; Blank, Robert R.; Tausch, Robin J.; Roundy, Bruce A.; Miller, Richard F.; Caldwell, Todd G.; Lucchesi, Annmarie. 2011. Woodland expansion's influence on belowground carbon and nitrogen in the Great Basin U.S. Journal of Arid Environments. 75: 827-835.
Vegetation changes associated with climate shifts and anthropogenic disturbance can have major impacts on biogeochemical cycling and soils. Much of the Great Basin, U.S. is currently dominated by sagebrush (Artemisia tridentate (Rydb.) Boivin) ecosystems. Sagebrush ecosystems are increasingly influenced by pinyon (Pinus monophylla Torr. & Frém and Pinus edulis Engelm.) and juniper (Juniperus osteosperma Torr. and Juniperus occidentalis Hook.) expansion. Some scientists and policy makers believe that increasing woodland cover in the intermountain western U.S. offers the possibility of increased organic carbon (OC) storage on the landscape; however, little is currently known about the distribution of OC on these landscapes, or the role that nitrogen (N) plays in OC retention. We quantified the relationship between tree cover, belowground OC, and total below ground N in expansion woodlands at 13 sites in Utah, Oregon, Idaho, California, and Nevada, USA. One hundred and twenty nine soil cores were taken using a mechanically driven diamond tipped core drill to a depth of 90 cm. Soil, coarse fragments, and coarse roots were analyzed for OC and total N.
Keywords: pinyon, juniper, sagebrush, carbon soil, tree cover
About PDFs: For best results, do not open the PDF in your Web browser. Right-click on the PDF link to download the PDF file directly to your computer. Click here for more PDF help.
PDF File Size: 730 K
Title: RMRS Other
Publications: Woodland expansion's influence on belowground carbon
and nitrogen in the Great Basin U.S.
Electronic Publish Date: January 7, 2013
Last Update: January 7, 2013
RMRS Publications | Order a publication | Contact Us