TITLE

RHESSys: Regional Hydro-Ecologic Simulation System--An Object-Oriented Approach to Spatially Distributed Modeling of Carbon, Water, and Nutrient Cycling

AUTHOR(S)
Tague, C. L.; Band, L. E.
PUB. DATE
January 2004
SOURCE
Earth Interactions;2004, Vol. 8 Issue 1, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Process-based models that can represent multiple and interacting processes provide a framework for combining field-based measurements with evolving science-based models of specific hydroecological processes. Use of these models, however, requires that the representation of processes and key assumptions involved be understood by the user community. This paper provides a full description of process implementation in the most recent version of the Regional Hydro-Ecological Simulation System (RHESSys), a model that has been applied in a wide variety of research settings. An overview of the underlying (Geographic Information System) GIS-based model framework is given followed by a description of the mathematical models used to represent various biogeochemical cycling and hydrologic processes including vertical and lateral hydrologic fluxes, microclimate variability, canopy radiation transfer, vegetation and soil microbial carbon and nitrogen cycling. An example application of RHESSys for a small forested watershed as part of the Baltimore Long-Term Ecological Research site is included to illustrate use of the model in exploring spatial-temporal dynamics and the coupling between hydrology and biogeochemical cycling.
ACCESSION #
15993682

 

Related Articles

  • Fire and grazing impacts on silica production and storage in grass dominated ecosystems. Melzer, Susan E.; Knapp, Alan K.; Kirkman, Kevin P.; Smith, Melinda D.; Blair, John M.; Kelly, Eugene F. // Biogeochemistry;Mar2010, Vol. 97 Issue 2/3, p263 

    Grassland ecosystems are an important terrestrial component of the global biogeochemical silicon cycle. Although the structure and ecological functioning of grasslands are strongly influenced by fire and grazing, the role of these key ecological drivers in the production and storage of silicon...

  • Chronic nitrate additions dramatically increase the export of carbon and nitrogen from northern hardwood ecosystems. Pregitzer, Kurt S.; Zak, Donald R.; Burton, Andrew J.; Ashby, Jennifer A.; Macdonald, Neil W. // Biogeochemistry;Apr2004, Vol. 68 Issue 2, p179 

    A long-term field experiment was initiated to simulate chronic atmospheric N deposition, a widespread phenomenon in industrial regions of the world. Eight years of experimental nitrate (NO3-) additions (3 g NO3--N m-2 per year) to four different northern hardwood...

  • HydroKorea and CarboKorea: cross-scale studies of ecohydrology and biogeochemistry in a heterogeneous and complex forest catchment of Korea. Joon Kim; Dongho Lee; Jinkyu Hong; Sinkyu Kang; Su-Jin Kim; Sang-Ki Moon; Jong-Hwan Lim; Yowhan Son; Jaeseok Lee; Sanghyun Kim; Namchil Woo; Kyongha Kim; Buyong Lee; Byong-Lyol Lee; Sung Kim // Ecological Research;Nov2006, Vol. 21 Issue 6, p881 

    The KoFlux program is dedicated to understanding the fluxes of energy and matter, water resource management, and net ecosystem production in key ecosystems of Monsoon Asia. Under the framework of AsiaFlux, it is a joint effort with determined, comprehensive international strategies to bring...

  • Physiology, Ecological Niches and Species Distribution. Helaouët, Pierre; Beaugrand, Gregory // Ecosystems;Dec2009, Vol. 12 Issue 8, p1235 

    Although many studies have debated the theoretical links between physiology, ecological niches and species distribution, few studies have provided evidence for a tight empirical coupling between these concepts at a macroecological scale. We used an ecophysiological model to assess the...

  • Parsimonious modelling of nutrient fluxes for a terrestrial ecosystem on Svalbard. Stapleton, L. M.; Laybourn-Parry, J.; Poulton, P. R.; Tye, A. M.; West, H. M.; Young, S. D.; Crout, N. M. J. // Biogeochemistry;Aug2006, Vol. 80 Issue 1, p57 

    MBL-MEL, a simple model of ecosystem biogeochemistry, is amended and applied to plant and soil C, 14N and 15N data for the summers of 2001–2003 from Brandalpynten, a maritime high Arctic site on Svalbard following the application of 15N (99 atom%) as 15NO3-N at or 15NH4-N at...

  • SCALING UNCERTAINTIES IN ESTIMATING CANOPY FOLIAR MAINTENANCE RESPIRATION FOR BLACK SPRUCE ECOSYSTEMS IN ALASKA. Zhang, Xinxian; McGuire, A. David; Ruess, Roger W. // Mitigation & Adaptation Strategies for Global Change;Jan2006, Vol. 11 Issue 1, p147 

    A major challenge confronting the scientific community is to understand both patterns of and controls over spatial and temporal variability of carbon exchange between boreal forest ecosystems and the atmosphere. An understanding of the sources of variability of carbon processes at fine scales...

  • Global environmental changes in terrestrial ecosystems. International issues and strategic solutions: introduction. Sun Kee Hong; Lee, John A. // Ecological Research;Nov2006, Vol. 21 Issue 6, p783 

    Human activities are having major impact on biogeochemical cycles and ecosystems worldwide. Rapid urbanization and changes in rural populations are affecting ecosystems in often-drastic ways. Ecologists are using long term monitoring and experimental studies to understand and to help mitigate...

  • Multispectral and Biogeochemical Evaluation for Possible Smelter and Power Plant Emission Effects on Trees in a Missouri Conservation Area and Illinois Nature Preserve. Cwick, Gary J.; Roland, Robert T.; Aide, Michael T.; Kraemer, John C. // Transactions of the Missouri Academy of Science;2007, Vol. 41, p26 

    Stack emission and deposition of heavy metals from industrial sites continues to be an environmental concern, and the effects of it on particular ecosystems need to be further investigated. This has become more practicable with recent advancements in information gathering systems and analysis...

  • Seasonal biogeochemical hotspots in the streambed around restoration structures. Lautz, L.; Fanelli, R. // Biogeochemistry;Oct2008, Vol. 91 Issue 1, p85 

    Rapid exchange of stream water and groundwater in streambeds creates hotspots of biogeochemical cycling of redox-sensitive solutes. Although stream�groundwater interaction can be increased through stream restoration, there are few detailed studies of the increased heterogeneity of water and...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics