2012 LTER ASM - Movement of Organic Matter

Microstegium vimineum is associated with changes in nitrogen availability and fluxes across a broad landscape

tursell — Fri, 07 Sep 2012 03:12:31 +0000

Poster Number:

397

Presenter/Primary Author:

Tara Ursell

Co-Authors:

Robert J. Warren II, Ashley D. Keiser, Jeffrey Norman, John Barrett, Mark A. Bradford

Student Poster:

Yes

Photochemical Degradation of Strong Natural Iron-Binding Ligands in the California Current Ecosystem

rbundy — Wed, 05 Sep 2012 07:45:57 +0000

Poster Number:

388

Presenter/Primary Author:

Randelle Bundy

Co-Authors:

Kathy Barbeau

The speciation of iron has been shown to be significantly affected by photochemical processes in the surface ocean, altering both the redox state and organic complexation of iron.

Student Poster:

Yes

Does Crop Rotation Influence Soil Microbial Function?

mmcdaniel — Fri, 31 Aug 2012 21:20:10 +0000

Poster Number:

344

Presenter/Primary Author:

Marshall McDaniel

Co-Authors:

A. Stuart Grandy

Crop rotations, which increase plant diversity through time, are considered key to sustainable agroecosystem management. Crop rotations have been shown to alter soil carbon (C) and nitrogen (

Cover Crops Have the Greatest Influence on Belowground Ecosystem Processes Along a Gradient of Cropping System Diversity

bneill — Fri, 31 Aug 2012 18:09:04 +0000

Poster Number:

340

Presenter/Primary Author:

Brendan O'Neill

Co-Authors:

Stuart Grandy

Co-Authors:

Thomas Schmidt

Row crop agriculture dominates most of the landscape of the U.S. upper mid-west, and along with constant pressure to increase production are calls to reduce inputs harmful to air, soil and water.

Student Poster:

Yes

Life in Brown Waters: Aquatic Bacteria Respond to Increased Terrestrial Carbon Loading

mmuscarella — Fri, 31 Aug 2012 16:59:37 +0000

Poster Number:

336

Presenter/Primary Author:

Mario Muscarella

Co-Authors:

Stuart Jones

Co-Authors:

Jay Lennon

Bacteria are vital for the functioning of natural and managed ecosystems due to their role in biogeochemical processes; however, it is unclear how bacteria will respond to environmental changes.

Student Poster:

Yes

Mechanisms of soil C storage in bioenergy cropping systems

ltiemann — Thu, 30 Aug 2012 02:24:56 +0000

Poster Number:

318

Presenter/Primary Author:

Lisa Tiemann

Co-Authors:

Stuart Grandy

Soils often accrue carbon (C) when land is converted from grain based row crops such as corn to perennial bioenergy crops.

The Chemical Properties of Alaskan Permafrost and Seasonally Thawed Soils

jernakovich — Tue, 28 Aug 2012 21:53:48 +0000

Poster Number:

297

Presenter/Primary Author:

Jessica Ernakovich

Co-Authors:

Wallenstein, Matthew D.

Co-Authors:

Calderón, Francisco J.

Although permafrost soils contain vast stores of carbon, we know relatively little about the chemical composition of the carbon stored in these soils.

Student Poster:

Yes

Fine Root Production and Belowground Soil Processes Across a Dryland Ecotone

bnieto — Tue, 28 Aug 2012 16:15:57 +0000

Poster Number:

291

Presenter/Primary Author:

Brenda Nieto

Co-Authors:

Nate Pierce

Co-Authors:

Steve A. Archer

Co-Authors:

Heather L. Throop

Drylands cover 30% of terrestrial land area and can influence global C (carbon) and N (nitrogen) cycles.

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

Altitudinal gradient of dissolved organic carbon in headwater streams of the Wuyi Mountains in China

hhruan — Sun, 26 Aug 2012 06:35:53 +0000

Poster Number:

272

Presenter/Primary Author:

honghua ruan

Co-Authors:

Wei Huang

Co-Authors:

Xiaoming Zou

Co-Authors:

William H. McDowell

Dissolved organic carbon (DOC) in stream water is positively correlated with soil organic carbon (SOC) at regional scales in which climate and vegetation are relatively invariant.

Student Poster:

Yes