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About the Department


Holly Barnard
Oregon State University
321 Richardson Hall
Corvallis, OR 97331
Phone: 541-737-6562

Fax: 541-737-1393
Holly.Barnard<at>oregonstate.edu

Photo by Peter Krupp

Current Position

Education

  • M.S. Forest Science (Tree physiology), Colorado State University, Fort Collins, CO, 2000.
    Co-advisors: Dr. Michael Ryan and Dr. Dan Binkley
  • B.S. Forest Resources (Ecosystems), University of Washington, Seattle, WA, 1998.
    Advisors: Dr. Tom Hinckley and Dr. Linda Brubaker

Certification

2004 – Certified Ecologist, Ecological Society of America

Research Interests

  • Ecohydrology Of HJ Andrews
  • Forest Water Relations
  • Catchment And Hillslope Hydrology
  • Stable Isotope Methods In Hydrology And Tree Physiology
  • Transpiration Measurement Methods

Publications

Barnard, H.R., C.B. Graham, W.J. Van Verseveld, J.R. Brooks, B.J. Bond, and J.J. McDonnell. 2009. Mechanistic assessment of hillslope transpiration controls of diel sub-surface flow: a steady-state irrigation approach. Submitted to Ecohydrology.

• Pypker, T.G., H.R. Barnard, M. Hauck, E.W. Sulzman, M.H. Unsworth, A.C. Mix, A. Kennedy, and B.J. Bond. 2008. Can carbon isotopes be used to predict watershed scale transpiration? Water Resource Research In Revision.

• Pypker, T.G., M. Hauck, E.W. Sulzman, M.H. Unsworth, A.C. Mix, Z. Kayler, D. Conklin, A. Kennedy, H.R. Barnard and B.J. Bond. 2008. Toward using d13C of ecosystem respiration to monitor canopy physiology in complex terrain. Oecologia, 158 (3): 399-410.

• Hubbard R.M., M.G. Ryan, C.P. Giardina, and H.R. Barnard. 2004. The effect of fertilization on sap flux and canopy conductance in a Eucalyptus saligna experimental forest. Global Change Biology 10:427-436.

• Barnard, H.R. and M.G. Ryan, 2003, A test of the hydraulic limitation hypothesis in fast-growing Eucalyptus saligna, Plant, Cell and Environment, 26, 1235-1245.

• McDowell, N., H.R. Barnard, B.J. Bond, T. Hinckley, R. Hubbard, H. Ishii, B. Kostner, F.C. Meinzer, J.D. Marshall, F. Magnani, N. Phillips, M.G. Ryan, and D. Whitehead, 2002, The relationship between tree height and leaf area:sapwood area ratio, Oecologia, 132 (1): 12-20.

• Binkley, D., J.L. Stape, M.G. Ryan, H.R. Barnard, and J. Fownes, 2001, Age-related decline in forest ecosystem growth: an individual-tree, stand structure hypothesis, Ecosystems 5 (1): 58-67.

Personal Interests

Climbing, Skiing, unsuccessful gardening

 

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