2012 LTER ASM - Movement of Inorganic Matter

Examining the mechanistic basis of summer nitrate peaks: a coupled biogeochemical and hydrological approach

jduncan — Wed, 05 Sep 2012 15:11:47 +0000

Poster Number:

389

Presenter/Primary Author:

Jonathan Duncan

Co-Authors:

Lawrence E. Band

Co-Authors:

Peter M. Groffman

Co-Authors:

Emily S. Bernhardt

Contrary to behavior predicted by the nitrogen saturation hypothesis, Pond Branch (the Baltimore Ecosystem Study forested reference watershed) exhibits peak nitrogen export during the growing seaso

Student Poster:

Yes

Alpine grasslands in LTER Slovakia – air pollution and climate in focus

lhalada — Sat, 01 Sep 2012 09:47:59 +0000

Poster Number:

366

Presenter/Primary Author:

Lubos Halada

Co-Authors:

Robert Kanka

Co-Authors:

Andrej Halabuk

Slovak alpine is well studied and documented, less are known impacts of global change and several projects are recently focused to this issue.

Greenhouse gas emissions from a constructed wetland system in Phoenix, AZ

jramos1 — Sat, 01 Sep 2012 09:39:33 +0000

Poster Number:

365

Presenter/Primary Author:

Jorge Ramos

Co-Authors:

Eric Chapman

Co-Authors:

Nicholas A. Weller

Wetlands support ecological functions that result in valuable services to society, including the purification of water through processes such as denitrification, plant uptake, and soil retention.

Student Poster:

Yes

Effects of forest disturbances on stream nitrate concentrations in sites participating in StreamChemDB

aargerich — Thu, 30 Aug 2012 20:39:46 +0000

Poster Number:

327

Presenter/Primary Author:

Alba Argerich

Co-Authors:

Johnson, Sherri L.

Co-Authors:

Sebestyen, Stephen D.

Co-Authors:

Rhoades, Charles C.

Co-Authors:

Greathouse, Effie

Co-Authors:

Wohlgemuth, Peter M.

Co-Authors:

Scatena, Fred N.

Co-Authors:

McDowell, William H.

Co-Authors:

Likens, Gene E.

Co-Authors:

Knoepp, Jennifer D.

Co-Authors:

Jones, Jeremy B.

Co-Authors:

Ice, George G.

Co-Authors:

Campbell, John L.

Co-Authors:

Amatya, Devendra M.

Co-Authors:

Adams, Mary Beth

Land use practices and natural disturbances in forested headwater catchments affect stream water chemistry with the potential to influence downst

Spatial and temporal variability in soil CO2 fluxes during the snow covered season on Niwot Ridge

dliptzin — Thu, 30 Aug 2012 00:03:19 +0000

Poster Number:

316

Presenter/Primary Author:

Daniel Liptzin

Co-Authors:

Brian Seok

Co-Authors:

Detlev Helmig

Co-Authors:

Mark W. Williams

Until recently, microbial activity in seasonally snow covered ecosystems was thought to be limited during the snow-covered season. However, in the last decade many studies have shown that the

Is the missing nitrogen source (or sink) at Hubbard Brook statistically significant? Quantifying Uncertainty in Ecosystem Studies (QUEST)

ryanai — Wed, 29 Aug 2012 14:57:08 +0000

Poster Number:

306

Presenter/Primary Author:

Ruth Yanai

Co-Authors:

Carrie R. Levine

Co-Authors:

Mark B. Green

Co-Authors:

John L. Campbell

Co-Authors:

Matthew A. Vadeboncoeur

Co-Authors:

Steve Hamburg

Nutrient budgets for forested ecosystems have rarely included error analysis, making it difficult to establish the significance of the results. At the Hubbard Brook Experimental Forest, the N

Nitrous Oxide (N2O) production by Rhizosphere fungi from Nitrogen fertilized grasslands

slopez — Wed, 29 Aug 2012 05:01:29 +0000

Poster Number:

304

Presenter/Primary Author:

Sara Lopez

Co-Authors:

Robert Sinsabaugh

Co-Authors:

David Hanson

Co-Authors:

Andrea Porras-Alfaro

The use of nitrogen (N) fertilizers has created international concern as denitrification of fertilizer-derived nitrate could result in higher rates of N₂O release to the atmosphere.

Student Poster:

Yes

Influence of stoichiometry and suburbanization on in-stream uptake of NH4 and PO4 in headwater, New England streams

nmorse — Tue, 28 Aug 2012 17:34:10 +0000

Poster Number:

294

Presenter/Primary Author:

Nat Morse

Co-Authors:

W.M. Wollheim

The physical, chemical and biological impacts of suburban land use change affect ecosystem structure and functions in headwater streams.

Student Poster:

Yes

The Moorea Coral Reef LTER Site

sholbrook — Sun, 26 Aug 2012 17:56:05 +0000

Poster Number:

274

Presenter/Primary Author:

Sally Holbrook

Co-Authors:

Russell J. Schmitt

Co-Authors:

Robert C. Carpenter

Co-Authors:

Peter J. Edmunds

The Moorea Coral Reef (MCR) LTER site, established in 2004, explores community and ecosystem effects of pulsed perturbations and slowly changing environmental drivers on coral reefs, ecologically a

Comparison of in-situ methods to measure N mineralization rates in forest soils

pgroffman — Wed, 22 Aug 2012 20:33:25 +0000

Poster Number:

259

Presenter/Primary Author:

Peter Groffman

Co-Authors:

Jorge Duran

Co-Authors:

Jennifer L. Morse

Co-Authors:

Robin Schmidt

Co-Authors:

James Burtis

Nitrogen mineralization is a critical ecosystem process that is difficult to measure.