K. Campbell Jill Baron 1997 <div class="abstract-group "><div class="article-section__content en main"><p>Measured, calculated and simulated values were combined to develop an annual nitrogen budget for Loch Vale Watershed (LVWS) in the Colorado Front Range. Nine-year average wet nitrogen deposition values were 1·6 (<i>s</i>=0·36) kg NO₃-N ha⁻¹, and 1·0 (<i>s</i>=0·3) kg NH₄-N ha⁻¹. Assuming dry nitrogen deposition to be half that of measured wet deposition, this high elevation watershed receives 3·9 kg N ha⁻¹. Although deposition values fluctuated with precipitation, measured stream nitrogen outputs were less variable. Of the total N input to the watershed (3·9 kg N ha⁻¹<span>&nbsp;</span>wet plus dry deposition), 49% of the total N input was immobilized. Stream losses were 2·0 kg N ha⁻¹<span>&nbsp;</span>(1125 kg measured dissolved inorganic N in 1992, 1–2 kg calculated dissolved organic N, plus an average of 203 kg algal N from the entire 660 ha watershed). Tundra and aquatic algae were the largest reservoirs for incoming N, at approximately 18% and 15% of the total 2574 kg N deposition, respectively. Rocky areas and forest stored the remaining 11% and 5%, respectively. Fully 80% of N losses from the watershed came from the 68% of LVWS that is alpine. © 1997 John Wiley &amp; Sons, Ltd.</p></div></div> application/pdf 10.1002/(SICI)1099-1085(199706)11:7<783::AID-HYP519>3.0.CO;2-U en Wiley Nitrogen fluxes in a high elevation Colorado Rocky Mountain basin article