Oral Session #34: Water Relations in Trees.

Presiding: M.P. Sheffield, J.W. Jones Ecological Research Center.
Monday, August 7, 2000
1:00 PM to 5:15 PM
Cottonwood Room III - Sports Event Center

1:00 PM	Partitioning of soil water among tree species in a Brazilian Cerrado ecosystem. JACKSON, P.C. , F.C. MEINZER, M. BUSTAMANTE, G. GOLDSTEIN, A. FRANCO, P.W. RUNDEL and L. CALDAS, E. IGLER, F. CAUSIN
1:15 PM	Hydraulic architecture of seasonally dry rainforest tree species of differing leaf phenology from North Queensland, Australia. CHOAT, B. , J.A.M. HOLTUM, J.G. LULY, M.C. BALL
1:30 PM	Evapotranspiration from Middle Rio Grande (New Mexico) riparian ecosystems: The roles of flooding and community composition. CLEVERLY, J.R. , J.R. THIBAULT, J. PEARCE, C.N. DAHM
1:45 PM	Transpiration, root architecture, and biomass allocation in cottonwood (Populus fremontii) and mesquite (Prosopis velutina): Responses to experimental manipulations. SNYDER, K.A. , D.G. WILLIAMS
2:00 PM	Regulation of watershed hydrology by plant-water relations and topographic controls. ENGEL, V. , M. STEIGLITZ, M. WILLIAMS
2:15 PM	Xylem cavitation and repair in two clones of black cottonwood with different stomatal behavior. PRATT, R.B. , R.A. BLACK
2:30 PM	Gender-specific responses of boxelder to water availability during a decade of growth in a common garden. WARD, J.K. , T.E. DAWSON, D.L. PIERCE, J.R. EHLERINGER
2:45 PM	Evidence of soil moisture stress in an Amazonian rain forest and implications for carbon uptake. WILLIAMS, M. , Y. SHIMABOKURO, D.A HERBERT, S. PARDI LACRUZ, C. RENNO, E.B RASTETTER
3:00 PM	Break
3:15 PM	Hydraulic properties and freeze-thaw induced embolism in 17 sympatric species of oaks (Quercus.) CAVENDER-BARES, J. , N.M. HOLBROOK
3:30 PM	Water use and stomatal conductance of Pinus taeda L. and Liquidambar styraciflua under ambient and elevated CO 2. SCHAFER, K.V.R. , R. OREN, C. LAI, G. KATUL
3:45 PM	Seasonal pattern and influence of water stress on photosynthesis and 2-methyl-3-buten-2-ol emission from ponderosa pine. GRAY, D.W. , M.T. LERDAU, A.H. GOLDSTEIN
4:00 PM	Stomatal conductance and photosynthesis are directly related to stem hydraulic conductivity in ponderosa pine seedlings. HUBBARD, R.M. , V. STILLER, J.S. SPERRY, M.G. RYAN
4:15 PM	Water potential, gas exchange, and carbon isotope discrimination in very tall coast redwoods, Sequoia sempervirens: Support for the hydraulic limitation hypothesis. KOCH, G.W. , S.C. SILLETT
4:30 PM	Water transport in large northern Rocky Mountain conifers is not always limited. SALA, A. , E.V. CAREY, R.M. CALLAWAY
4:45 PM	Hydraulic capacitance and resistance as a function of tree size. PHILLIPS, N. , B.J. BOND, T. HINCKLEY, N. MCDOWELL, M.G. RYAN, A. SCHAUER
5:00 PM	Evidence of hydraulic limitation and compensation in large, old Douglas-fir trees. MCDOWELL, N.G. , N. PHILLIPS, A. SCHAUER, B.J. BOND, M.G. RYAN