Title: Woodland expansion's influence on belowground carbon and nitrogen in the Great Basin U.S.
Author: Rau, Benjamin M.; Johnson, Dale W.; Blank, Robert R.; Tausch, Robin J.; Roundy, Bruce A.; Miller, Richard F.; Caldwell, Todd G.; Lucchesi, Annmarie;
Source: Journal of Arid Environments. 75: 827-835.
Publication Series: Scientific Journal (JRNL)
Description: 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
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
XML: View XML
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.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility