David W. Hann

Professor

BS, 1968 Oregon State University
MS, 1970, Oregon State University
PhD, 1978, University of Washington

Email:

Research Interests & Activity:

Forest Modeling

Current programs:

Development of growth and yield information for major PNW tree species; generation of an animating interface for growth and yield models; development of sampling methodologies for characterizing complex forest stands

ORegon Growth ANalysis and ProjectiON; also known as: ORGANON

The Visible Forest: Computer generated visualization of within stand structure of the forest from field data or growth model projections.

Courses:

• FOR 322 - Forest Models

• FOR 507 - Seminar

• FOR 525 - Forest Modeling

Selected publications:

Selected publications:

Canavan, S.J. and D.W. Hann. 2004. The two stage method for measurement error characterization. Forest Science 50: 743-756.

Hann, D.W. and M.L. Hanus. 2004. Evaluation of nonspatial approaches and equation forms used to predict tree crown recession. Canadian Journal of Forest Research 34: 1993-2003.

Marshall, D.D., G.P. Johnson and D.W. Hann. 2003. Crown profile equations for stand grown western hemlock in northwestern Oregon. Canadian Journal of Forest Research 33: 2059-2066.

Hann, D.W. D.D. Marshall and M.L. Hanus. 2003. Equations for predicting height to crown base, five year diameter growth rate, five year height growth rate, five year mortality rate and maximum size density trajectory for Douglas fir and western hemlock in the coastal region of the Pacific Northwest. Forest Research Lab., Oregon State University, Corvallis, Oregon. Research Contribution 40. 83p.

Hann, D.W. and M.L. Hanus. 2002. Enhanced diameter-growth-rate equations for undamaged and damaged trees in southwest Oregon. Forest Research Lab., Oregon State Unviersity, Corvallis, Oregon. Research Contribution #39. 54p.

Hann, D.W. and M.L. Hanus. 2002. Enhanced height-growth-rate equations for undamaged and damaged trees in southwest Oregon. Forest Research Lab., Oregon State Unviersity, Corvallis, Oregon. Research Contribution #41. 38p.

Hann, D. W. 2001. Comment-stability and density management in Douglas-fir plantations. Canadian Journal of Forest Research 31: 367-368.

Hann, D. W. and M. L. Hanus. 2001. Enhanced mortality equations for trees in the mixed conifer zone of southwest Oregon. Forest Research Lab, Oregon State University, Corvallis, Oregon. Research Contribution 34. 34p.

Bravo, F., D. W. Hann, and D. A. Maguire. 2001. Impact of competitor species composition on predicting diameter growth and survival rates of Douglas-fir trees in Southwest Oregon. Canadian Journal of Forest Research 31: 2237-2247.

Hanus, M.L., D.W. Hann, and D.D. Marshall. 2000. Predicting height to crown base for undamaged and damaged trees in southwest Oregon. Forest Research Lab., Oregon State University, Corvallis, Oregon. Research Contribution 29. 35p.

Hann, D.W. 1999. An adjustable predictor of crown profile for stand grown Douglas-fir trees. Forest Science 45: 217-225.

Hanus, M.L., D.W. Hann, and D.D. Marshall. 1999. Predicting height for undamaged and damaged trees in southwest Oregon. Forest Research Lab., Oregon State University, Corvallis, Oregon. Research Contribution 27. 22p.

Hanus, M.L., D.D. Marshall, and D.W. Hann. 1999. Height-diameter equations for six species in the coastal regions of the Pacific Northwest. Forest Research Lab., Oregon State University, Corvallis, Oregon. Research Contribution 25. 11p.

Hann, D.W. 1998. Extending southwest Oregon's Douglas-fir dominant height growth equation to older ages. Forest Research Lab., Oregon State University, Corvallis, Oregon. Research Contribution 18. 16p.

Hanus, M.L., D.W. Hann and D.D. Marshall. 1998. Reconstructing the spatial pattern of trees from routine stand examination measurements. Forest Science 44: 125-133.

Hann, D.W. 1997. Equations for predicting the largest crown width of stand-grown trees in western Oregon. Forest Research Lab., Oregon State University, Corvallis, Oregon. Research Contribution 17. 14p.

Hann, D.W., A.S. Hester and C.L. Olsen. 1997. ORGANON user's manual: Edition 6.0. Department of Forest Resources, Oregon State University, Corvallis, Oregon. 133p.

Dubrasich, M.E., D.W. Hann and J.C. Tappeiner II. 1997. Methods for evaluating crown area profiles of forest stands. Canadian Journal of Forest Research 27: 385-392.

Hanus, M.L., and D.W. Hann. 1997. VIZ4ST: Forest Visulization user's guide, Edition 1.0. Department of Forest Resources, Oregon State University, Corvallis, Oregon. 11p.