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Oecologia (2004) 139: 108116 DOI 10.1007/s00442-004-1486-6

Summary: Oecologia (2004) 139: 108116
DOI 10.1007/s00442-004-1486-6
E. Carol Adair . Dan Binkley . Douglas C. Andersen
Patterns of nitrogen accumulation and cycling in riparian
floodplain ecosystems along the Green and Yampa rivers
Received: 1 May 2003 / Accepted: 23 December 2003 / Published online: 31 January 2004
# Springer-Verlag 2004
Abstract Patterns of nitrogen (N) accumulation and
turnover in riparian systems in semi-arid regions are
poorly understood, particularly in those ecosystems that
lack substantial inputs from nitrogen fixing vegetation. We
investigated sources and fluxes of N in chronosequences
of riparian forests along the regulated Green River and the
free-flowing Yampa River in semi-arid northwestern
Colorado. Both rivers lack significant inputs from N-
fixing vegetation. Total soil nitrogen increased through
time along both rivers, at a rate of about 7.8 g N m-2
for years 1070, and 2.7 g N m-2


Source: Adair, E. Carol - National Center for Ecological Analysis and Synthesis, University of California at Santa Barbara


Collections: Environmental Sciences and Ecology