2012 LTER ASM - JRN

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

Long-term reproductive phenology in the Chihuahuan Desert linking legacy and contemporary datasets

dbrowning — Tue, 14 Aug 2012 22:19:55 +0000

Poster Number:

213

Presenter/Primary Author:

Dawn Browning

Co-Authors:

John P. Anderson

Co-Authors:

Debra C. Peters

Arid and semi-arid regions of the southwestern USA are especially sensitive to changes in temperature as well as drought frequency and intensity.

Water-nitrogen effects on fine-root production in a Chihuahuan Desert grassland

Jhaussler — Tue, 07 Aug 2012 00:52:37 +0000

Poster Number:

182

Presenter/Primary Author:

Josh Haussler

Co-Authors:

Osvaldo E. Sala

Co-Authors:

Laureano Gherardi

Co-Authors:

Shane Easter

Co-Authors:

Lara Reichmann

Co-Authors:

Jane Smith

Co-Authors:

Heather Throop

Co-Authors:

Steven Archer

Arid lands comprise approximately 40% of the Earth's land surface, and contribute 30-35% of the terrestrial net primary productivity.

Student Poster:

Yes

Understanding litter decomposition in drylands: Is litter abrasion an important abiotic factor?

mpeterson — Thu, 02 Aug 2012 17:01:42 +0000

Poster Number:

156

Presenter/Primary Author:

Melanie Peterson

Co-Authors:

Luis C. Duarte

Co-Authors:

Maria R. Bravo-Garza

Co-Authors:

Heather Throop

Drylands comprise approximately 40% of the global land cover and about 20% of the global soil organic carbon (C) pool (Lal, 2004).

Student Poster:

Yes

Soil memory: a tool for understanding vegetation change during the Anthropocene

cmonger — Thu, 02 Aug 2012 14:31:07 +0000

Poster Number:

155

Presenter/Primary Author:

Curtis Monger

Referring to his memory, Abraham Lincoln said that “My mind is like a piece of steel—very hard to scratch anything on it, but almost impossible, after you get it there, to rub it out.” Soils, metap

Grass-shrub interactions in a Chihuahuan Desert ecosystem: can vegetation structure predict state-transitions?

npiece — Thu, 02 Aug 2012 06:51:48 +0000

Poster Number:

154

Presenter/Primary Author:

Nate Pierce

Co-Authors:

Steve Archer, Brandon Bestelmeyer

State transition from perennial grassland to woody plant domination is synonymous with land degradation and desertification in many arid and semiarid ecosystems.

Student Poster:

Yes

Improving the understanding and scaling of land-atmosphere carbon, water and energy exchange in a Chihuahuan Desert shrubland at the Jornada Experimental Range, Southern New Mexico.

ajaimes — Mon, 30 Jul 2012 22:00:36 +0000

Poster Number:

111

Presenter/Primary Author:

Aline Jaimes

Co-Authors:

Christine Laney

Co-Authors:

Marcy Litvak

Co-Authors:

Debra Peters

Co-Authors:

Craig E. Tweedie

Arid and semiarid ecosystems represent about 40% of the world’s land cover and are home of about 35% of the world’s human population.

Student Poster:

Yes

Jornada Basin Schoolyard LTER: Inquiry-Based Ecology Education for the K-12 Community

sbestelmeyer — Sat, 28 Jul 2012 14:06:04 +0000

Poster Number:

Presenter/Primary Author:

Stephanie Bestelm...

Co-Authors:

Rink Somerday

Co-Authors:

Paul Harper

Co-Authors:

Stephanie Haan-Amato

Co-Authors:

Anna Keener

More than 102,000 people have participated in the Jornada Basin schoolyard LTER’s hands-on ecological science programs since 1999 thanks to an effective collaboration between three entities that ru

Density fractionation and 13C reveal changes in soil carbon following woody encroachment in a desert ecosystem

klajtha — Fri, 20 Jul 2012 20:42:32 +0000

Poster Number:

Presenter/Primary Author:

Kate Lajtha

Co-Authors:

Heather Throop

Woody encroachment has dramatically changed land cover patterns in arid and semiarid systems (drylands) worldwide over the past 150 years.

Long-term soil water dynamics across a desert basin: Broad-scale climatic drivers and local heterogeneity

mduniway — Tue, 17 Jul 2012 23:43:11 +0000

Poster Number:

Presenter/Primary Author:

Michael Duniway

Co-Authors:

H. Curtis Monger

Co-Authors:

John Anderson

Co-Authors:

Jeff Herrick

In arid and semiarid ecosystems, plant community composition and production is primarily limited by soil water availability. Soil profile development and soil-vegetation feedbacks can influen