Current Projects in the Jackson Lab

Global Carbon Cycle

The "tunnel" CO2 gradient in Temple, Texas	Free-Air CO2 Enrichment (FACE) site at Duke	Soil coring project in the southwestern US

Sample publications

• Gill, RA, HW Polley, HB Johnson, LJ Anderson, H Maherali, RB Jackson. 2002. Nonlinear grassland responses to past and future atmospheric CO2. Nature 417:279-282.

• Jackson, RB, JL Banner, EG Jobbágy, WT Pockman, DH Wall. 2002. Ecosystem carbon loss with woody plant invasion of grasslands. Nature 418:623-626.

• Jobbágy EG, Jackson RB. 2000. The vertical distribution of soil organic carbon and its relation to climate and vegetation. Ecological Applications 10:423-436.

Posters and presentations

Water Cycle

Caves and resource uptake	Global freshwater cycle	Water in a changing world

Sample publications

• Jackson, RB, SR Carpenter, CN Dahm, DM McKnight, RJ Naiman, SL Postel, and SW Running. 2001. Water in a changing world. Ecological Applications 11:1027-1045.    See also the Issues in Ecology report based on this paper for the Ecological Society of America.
• Baron, JS, NL Poff, PL Angermeier, CN Dahm, PH Gleick, NG Hairston, Jr., RB Jackson, CA Johnston, BG Richter, and AD Steinman. 2002. Balancing human and ecological needs for freshwater. Ecological Applications, in press.

Posters

Biosphere/Atmosphere Interactions and Climate Modeling

Change in fire risk from savanna conversion	Change in surface temperature

Sample publications

• Hoffmann, WA, W Schroeder, RB Jackson. 2002. Coupled feedbacks of fire, climate, and vegetation and the conversion of tropical savanna. Geophysical Research Letters, in press.
• Dickinson, RE, JA Berry, GB Bonan, GJ Collatz, CB Field, IY Fung, M Goulden, WA Hoffmann, RB Jackson, R Myneni, PJ Sellers, M Shaikh. 2002. Nitrogen controls on climate model evapotranspiration. Journal of Climate 15:278-295.
• Jackson RB, HJ Schenk, EG Jobbágy, J Canadell, GD Colello, RE Dickinson, CB Field, P Friedlingstein, M Heimann, K Hibbard, DW Kicklighter, A Kleidon, RP Neilson, WJ Parton, OE Sala, MT Sykes. 2000. Belowground consequences of vegetation change and their treatment in models. Ecological Applications 10:470-483.
• Hoffmann WA, Jackson RB. 2000. Vegetation-climate feedbacks in the conversion of tropical savanna to grassland. Journal of Climate 13: 1593-1602.

Posters and Presentations

Conduit diameter increases with depth	Stomatal density and CO2	Trade-offs among physiological traits

Global Carbon Cycle

• Carbon dioxide as a selective agent for stomatal density
• Effects of a 4-year exposure to pre-industrial and elevated CO2 gradient on stomatal characters of C3 and C4 species
• Global patterns of root turnover for terrestrial ecosystems
• Photosynthetic and stomatal responses to sub-ambient and elevated CO2 concentrations in a C3-C4 grassland
• Soil Responses to Atmospheric CO2: Storage and Fluxes of Carbon and Nitrogen in a Grassland Exposed to a Gradient in CO2 Concentration

Water Cycle

• The contribution of deep root functioning to whole-plant water relations and xylem transport in Juniperus ashei
• Trade-offs among vulnerability to xylem cavitation, water transport, and other physiological traits in temperate forest species
• Variability In Resistance To Water-Stress-Induced Cavitation In Juniperus (Cupressaceae) Species
• The contribution of deep roots to the water cycle: seasonal patterns of water uptake and hydraulic lift from below 7 m on the Edwards Plateau, Texas

Other Project Pages

• Atmospheric CO2 and Plant Productivity
• GCTE: Root Distributions and Carbon and Water Fluxes
• Identifying Roots Using ITS
• Root Distributions and Global Models
• Stomata and Scanning Electrochemical Microscopy
• Other Projects

Last modified 3/8/2005 cwcook@duke.edu

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