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Water 2015, 7(10), 5345-5377; doi:10.3390/w7105345

Catchment-Scale Modeling of Nitrogen Dynamics in a Temperate Forested Watershed, Oregon. An Interdisciplinary Communication Strategy

1,* , 2,†
,
3,†
and
4,†
1
Biological and Ecological Engineering, Oregon State University, Corvallis, OR 97331, USA
2
Institute for Landscape Ecology and Resource Management, University of Giessen, Giessen 35392, Germany
3
Department of Geosciences, Oregon State University, Corvallis, OR 97331, USA
4
College of Forestry, Oregon State University, Corvallis, OR 97331, USA
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Y. Jun Xu
Received: 1 February 2015 / Revised: 18 August 2015 / Accepted: 19 August 2015 / Published: 12 October 2015
(This article belongs to the Special Issue Hydro-Ecological Modeling)
View Full-Text   |   Download PDF [540 KB, uploaded 12 October 2015]   |  

Abstract

We present a systems modeling approach to the development of a place-based ecohydrological model. The conceptual model is calibrated to a variety of existing observations, taken in watershed 10 (WS10) at the HJ Andrews Experimental Forest (HJA) in Oregon, USA, a long term ecological research (LTER) site with a long history of catchment-scale data collection. The modeling framework was designed to help document and evaluate an evolving understanding of catchment processing of water, nitrogen, and carbon that has developed over the many years of on-going research at the site. We use the dynamic model to capture the temporal variation in the N and C budgets and to evaluate how different components of the complex system may control the retention and release of N in this pristine forested landscape. Results indicate that the relative roles of multiple competing controls on N change seasonally, between periods of wet/dry and growth/senescence. The model represents a communication strategy to facilitate dialog between disciplinary experimentalists and modelers, to produce a more complete picture of nitrogen cycling in the region. We view this explicit development of complete, yet conceptually simplified models as a useful and important way to evaluate complex environmental dynamics. View Full-Text
Keywords: modeling; framework; nitrogen modeling; framework; nitrogen
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Vaché, K.; Breuer, L.; Jones, J.; Sollins, P. Catchment-Scale Modeling of Nitrogen Dynamics in a Temperate Forested Watershed, Oregon. An Interdisciplinary Communication Strategy. Water 2015, 7, 5345-5377.

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