| AGENDA |
| OBJECTIVE & APPROACH |
| PARTICIPANTS |
| BREAKOUT DISCUSSIONS |
| MODEL SUMMARIES |
| POSTERS |
| PUBLICATIONS |
Denitrification Modeling Across Terrestrial, Freshwater and Marine Systems
November 28-30, 2006
At The Institute of Ecosystem Studies,
Millbrook, New York, USA
This first workshop in the Denitrification RCN series focused on the modeling of denitrification. The current status as well as new advances in modeling denitrification in terrestrial, freshwater and marine environments were covered with an overall emphasis in scaling up from small scales to whole watershed or regional perspectives. The workshop also brought together denitrification measurement and modeling perspectives as these groups need to work in concert with each other for denitrification rates to be obtained at appropriate temporal and spatial scales.
Many of the RCN workshops are envisioned to be joint efforts, with different funding sources and objectives combined in productive ways. For this workshop, combined RCN funding and objectives with the Northeastern Nitrogen Gases Working Group, which is funded by the Northeastern Ecosystem Research Cooperative (NERC).
We would like to thank all the participants in this first Denitrification RCN Workshop. Your important contributions led to its marvelous success.
Co-chairs: Sybil Seitzinger, Eric Davidson, Peter Groffman, Elizabeth Boyer, Rosalynn Lee
AGENDA
[PDF]
TUESDAY, NOVEMBER 28
Workshop background and goals. Moderator: Rosalynn Lee
- IES Welcome. Director Gene Likens
- Introduction. Peter Groffman
- Toward improved understanding of denitrification across terrestrial, freshwater and marine systems. Eric Davidson & Rosalynn Lee [PDF]
- Current estimates of the relative magnitude of denitrification across terrestrial, freshwater and marine systems. Sybil Seitzinger [PDF]
- Current modeling approaches to quantify denitrification across terrestrial, freshwater and marine systems. Beth Boyer [PDF]
Introduction to our case-study watersheds. Moderator: Madhura Kulkarni
- Merrimack. The N cycle and denitrification in the Hubbard Brook headwaters and beyond. Peter Groffman [PDF]
- Merrimack. The N cycle and denitrification in the Plum Island Sound and offshore shelf and its integration with the larger watershed. Anne Giblin
- Illinois. The N cycle and denitrification in the upper Mississippi River basin: tile drained and non-drained agricultural watersheds. Mark David [PDF]
- Illinois. The N cycle and denitrification in tile drained agricultural watersheds: estimates and modeling. Greg McIsaac [PDF]
Modeling approaches in terrestrial & aquatic ecosystems. Moderators: Wally Fulweiler & Emilie Stander
- DNDC, DeNitrification-DeComposition. Christina Tonitto [model summary]
- DAYCENT. Bill Parton & Steve DelGrosso [PDF] [model summary]
- RHESSys, Regional Hydro-Ecologic Simulation System. Christina Tague [PDF] [model summary]
- DRAINMOD-NII. Mohamed Youssef [PDF] [model summary]
- SPARROW, Spatially Referenced Regressions on Watershed attributes. Richard Alexander [model summary]
- SFM, Sediment Flux Model. Damian Brady for Dominic DiToro [model summary]
- Scaling out to ecosystem effects of denitrification with dynamic biological-physical models. Katja Fennel [PDF]
- Discussion and charge to breakout groups. Beth Boyer
POSTER SESSION »
WEDNESDAY, NOVEMBER 29
Considerations for model representations of process-based measurements in various systems. Moderator: Wil Wolheim
- Denitrification in channels from LINX, the Lotic Intersite Nitrogen Experiment. Pat Mulholland [PDF]
- Considerations for measuring and modeling denitrification in small streams. JK Böhlke
- Modeling instream and near-stream processes at the small watershed scale, with implications for integrated ecosystem modeling. Rob Runkel [PDF]
- Charge to breakout groups. Sybil Seitzinger
- CASE
STUDY BREAKOUT GROUPS
Moderators: Peter Groffman & Mark David
Considerations for model development & scaling. Moderator: Emilio Mayorga
- Denitrification in engineered systems. Art Gold [PDF]
- Regionalizing with geospatial databases. Lex Bouwman
- BREAKOUT WORKING GROUPS
THURSDAY, NOVEMBER 30
Working group reports and plans for future progress.
- Merrimack watershed. Peter Groffman
- Illinois watershed. Mark David
- Model comparisons. Beth Boyer
- BREAKOUT WORKING GROUPS
- Future RCN activities such as future workshops & conferences. Sybil Seitzinger & Eric Davidson
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| FRONT (L-R): Pierre-Andre Jacinthe, Emilio Mayorga, Beth Boyer, Sybil Seitzinger, Jen Morse, Alex Rao, Emilie Stander, Christina Tague, Madhura Kulkarni, Rosalynn Lee, Steve Del Grosso. BACK (L-R): Katja Fennel, Greg McIsaac, Wil Wollheim, Lex Bouwman, Peter Groffman, Rob Runkel, John Harrison, Pat Mulholland, Anne Giblin, Christina Tonitto, Richard Alexander, Roxane Maranger, Damian Brady, Art Gold, Bill Parton, Mark David, Craig Tobias, Klaus Butterbach-Bahl, Philippe Vidon, JK Bohlke, Mohamed Youssef, Eric Davidson, Jeff Cornwell, Marie Thouvenot, Ketil Koop-Jacobsen, Wally Fulweiler, Marselle Alexander-Ozinskas. |