Skip to main content

Dr. Dehai Zhao

Senior Research Scientist/Graduate Faculty
(Statistics, Forest Biometrics)
Plantation Management Research Cooperative (PMRC)

Contact Information

Pictured: Dr. Dehai Zhao

Contact Dr. Dehai Zhao

Phone:
706-542-6021

Campus address

Office:
Warnell 4-524

About

Education:
PhD, University of Georgia - Forest Biometrics/Management
MS, University of Georgia - Statistics
MS, Nanjing Forestry University - Forest Biometrics
BS, Nanjing Forestry University - Forest Science
Biography:

Prior Positions:

Assistant/Associate Research Scientist, Warnell School of Forestry and Natural Resources, University of Georgia. 2008-2017. 

Research Professional, Warnell School of Forestry and Natural Resources, University of Georgia. 2005-2008.
Postdoctoral Research Associate, Savannah River Ecology Laboratory. 2003-2005.
Visiting Professor, Faculty of Forestry and Environmental Management, University of New Brunswick, Canada. 1998-1999.
Associate Professor, Nanjing Forestry University, China. 1997-1998.
Assistant Professor, Nanjing Forestry University, China. 1989-1997.

Research

Research Areas Detail:

Growth and Yield Modeling; Ecological Modeling; Advanced Statistical Analysis; Sampling Techniques; Forest Inventory; Quantitative Management; Quantitative Silviculture; Biomass Production and Carbon Sequestration

.

Recent Citations:

* Corresponding Author

G. Quinonez-Barraza, D. Zhao, H.M. De Los Santos-Posadas. 2019. Compatible taper and stem volume equations for five pine species in mixed-species forests in Mexico. Forest Science (accepted).

G. Quinonez-Barraza, D. Zhao, H.M. De Los Santos-Posadas, W. Santiago-García, J.C. Tamarit-Urías, J.A. Najera-Luna. 2019. Compatible taper, volume, green weight, biomass and carbon concentration system for Quercus sideroxyla Bonpl. Revista Chapingo Serie Ciencias Forestales y del Ambiente 25:1 49-69.

Zhao, D.*, J. Westfall, J. Coulston, T.B. Lynch, B.P. Bullock, C.R. Montes. 2019. Additive biomass equations for slash pine trees: Comparing three modeling approaches. Canadian Journal of Forest Research 49: 27-40.

Zhao, D.*, T.B. Lynch, J. Westfall, J. Coulston, M. Kane, D.E. Adams. 2019. Compatibility, development and estimation of taper and volume equation systems.  Forest Science 65(1): 1-13. 

G. Quinonez-Barraza, D. Zhao, H.M. De Los Santos-Posadas, J.J. Corral-Rivas. 2018. Considering neighborhood effects improves individual dbh-growth models for natural mixed-species forests in Mexico. Annals of Forest Science 75: 78.

Gonzalez-Benecke, C., D. Zhao, L. Samuelson, T. Martin, D. Leduc, S. Jack. 2018. Local and general above-ground biomass functions for Pinus palustris trees. Forests 9(6), 310.

Ingwers, M.W., D. Zhao, M. Kane, D. Markewitz, R. Teskey. 2018. Relationships among growth, δ13C, foliar nitrogen concentration, foliar nitrogen content and intercepted radiation at different cultural intensities, planting densities and site indices reveal important of water use efficiency in mid-rotation loblolly pine stands. Forest Ecology and Management 422: 233-240

Wang, X., D. Zhao, G. Li, C. Yang, R. Teskey. 2018. Additive tree biomass equations for Betula platyphylla Suk. plantations in northeast China. Annals of Forest Science 75, 60.

Wang, M., M. Kane, D. Zhao. 2017. Correlation-regression analysis for understanding dominant height projection accuracy. Forest Science 63(6): 549-558.

Lynch, T.B., D. Zhao, H. Will, J.P. McTague. 2017. Deriving compatible taper functions from volume ratio equations based on upper-stem height. Canadian Journal of Forest Research 47: 1424-1431.

Zhao, D.*, M. Kane. 2017. New variable-top merchantable volume and weight equations derived directly from cumulative relative profiles for loblolly pines. Forest Science 63(3): 261-269.

Yan, X.L., T.F. Dai, D. Zhao, L.M. Jia. 2016. Combined surface drip irrigation and fertigation significantly increase biomass and carbon storage in a Populus x euramericana cv. Guariento plantation. Journal of Forest Research 21: 280-290.

Zhao, D.*, M. Kane, R. Teskey, D. Markewitz. 2016. Modeling aboveground biomass components and volume-to-weight conversion ratios for loblolly pine trees. Forest Science 62(5): 463-473.

Zhao, D.*, M. Kane, R. Teskey, T.R. Fox, T.J. Albaugh, H.L. Allen, R. Rubilar. 2016. Maximum response of loblolly pine plantations to silvicultural management in the southern United States. Forest Ecology and Management 375: 105-111.

Zhao, D.*, M. Kane, D. Markewitz, R. Teskey, M. Clutter. 2015. Additive tree biomass equations for mid-rotation loblolly pine plantations. Forest Science 61(4): 613-623.

Zhao, D.*, M. Kane, R. Teskey, D. Markewitz, D. Greene, B. Borders. 2014. Impact of management on nutrients, carbon, and energy in aboveground biomass components of mid-rotation loblolly pine (Pinus taeda L.) plantations. Annals of Forest Science 71: 843-851.

Wang, M., M. Kane, B. Borders, D. Zhao. 2014. Direct variance-covariance modeling as an alternative to the traditional guide curve approach for prediction of dominant heights. Forest Science 60(4): 652-662.

Akers, M., M. Kane, D. Zhao, R. Teskey, R.F. Daniels. 2013. Effects of planting density and cultural intensity on stand and crown attributes of mid-rotation loblolly pine plantations. Forest Ecology and Management 310: 468–475.

Bryars, C; Maier, C; Zhao, D; Kane, M; Borders, B; Will, R; and Teskey, R. 2013. Fixed physiological parameters in the 3-PG model produced accurate estimates of loblolly pine growth on sites in different geographic regions. Forest Ecology and Management 289:501-514.

Zhao, D* and Kane, M. 2012. Differences in growth dynamics of loblolly and slash pine plantations in the southeastern United States. Forest Ecology and Management 281:84-92.

Zhao, D*; Kane, M; Borders, B; Subedi, S; and Akers, M. 2012. Effects of cultural intensity and planting density on stand-level aboveground biomass production and allocation of 12-year old loblolly pine plantations in the Upper Coastal Plain and Piedmont of the southeastern United States.Canadian Journal of Forest Research 42 (1):111-122.

Zhao, D*; Kane, M; and Borders, B. 2012. Crown ratio and relative spacing relationships for loblolly pine plantations. Open Journal of Forestry 2(3):107-112.

Subedi, S; Kane, M; Zhao, D; Borders, B; and Greene, D. 2012. Cultural intensity and planting density effects on aboveground biomass of 12-year-old loblolly pine trees in the Upper Coastal Plain and Piedmont of the southeastern United States. Forest Ecology and Management 267:157-162.

Zhao, D*; Kane, M; and Borders, B. 2011. Growth responses to planting density and management intensity in loblolly pine plantations in the southeastern United States lower coastal plain. Annals of Forest Science 68:625-635.

Zhang, Y; Adams, J; and Zhao, D. 2011. Does insect folivory vary with latitude among temperate deciduous forests?. Ecological Research 26:377-383.

Zhao, D*; Kane, M; and Borders, B. 2010. Development and applications of the relative spacing model for loblolly pine plantations. Forest Ecology and Management 259:1922-1929.

Zhao, D*; Kane, M; Borders, B; and Harrison, M.W. 2009. Long-term effects of site preparation treatments, complete competition control and repeated fertilization on growth of slash pine plantations in the flatwoods of the southeastern United States. Forest Science 55:403-410.

Zhao, D*; Kane, M; Borders, B; Harrison, M; and Rheney, J. 2009. Site preparation and competing vegetation control affect loblolly pine long-term productivity in the southern Piedmont/Upper Coastal Plain of the United States. Annals of Forest Science 66 (705). 9p.

Zhao, D*; Kane, M; Borders, B; and Harrison, M. 2008. Pine growth response to different site-preparation methods with or without post-plant herbaceous weed control on North Florida's Lower Coastal Plain. Forest Ecology and Management 255:2512-2523.

Borders, B; Wang, M; and Zhao, D. 2008. Problems of scaling plantation plot diameter distributions to stand level. Forest Science 54:349-355.

Wang, M; Borders, B; and Zhao, D. 2008. Parameter Estimation of Base-age Invariant Site Index Models: Which Data Structure to use?  Forest  Science  54:129-133.

Wang, M; Borders, B; and Zhao, D. 2008. An empirical comparison of two subject-specific approaches to dominant heights modeling: The dummy variable method and the mixed model method. Forest Ecology and Management 255:2659-2669.

Zhao, D*; Borders, B; Wang, M; and Kane, M. 2007. Modeling mortality of second-rotation loblolly pine plantations in the Piedmont/Upper Coastal Plain and Lower Coastal Plain of the southern United States. Forest Ecology and Management 252:132-143.

Wang, M; Borders, B; and Zhao, D. 2007. Parameter estimation of based-age invariant site index models: which data structure we use to fit?. Forest Science 53(5):541-551.

Zhao, D*; Allen, B; and Sharitz, R.R. 2006. Twelve-year response of an old-growth southeastern floodplain forest to disturbance of hurricane Hugo. Canadian Journal of Forest Research 36:3136-3147.

Zhao, D*; Borders, B; and Wang, M. 2006. Survival models for fusiform rust infected loblolly pine plantations with and without mid-rotation understory vegetation control. Forest Ecology and Management 235:232-239.

Zhao, D*; Borders, B; Wilson, M; and Rathbun, S.L. 2006. Modeling neighborhood effects on the growth and survival of individual trees in a natural temperate species-rich forest. Ecological Modelling 196:90-102.

Zhao, D*; Wilson, M; and Borders, B. 2005. Modeling response curves and testing treatment effects in repeated measures experiments: a multilevel nonlinear mixed-effects model approach. Canadian Journal of Forest Research 35:122-132.

Zhao, D*; Borders, B; and Wilson, M. 2005. A density-dependent matrix model for bottomland mixed-species hardwood stands in the Lower Mississippi Alluvial Valley. Ecological Modelling 184:381-395.

Zhao, D*; Borders, B; and Wilson, M. 2004. Individual-tree diameter growth and mortality models for bottomland mixed-species hardwood stands in the Lower Mississippi Alluvial Valley. Forest Ecology and Management 199:307-322.

 

Plantation Management Research Cooperative (PMRC) Technical Reports:

Zhao, D.*, B. Bullock, C. Monters. Tape, merchantable volume, and biomass equations for slash pine trees. UGA/PMRC Technical Report 2018-1. 37 pp.

Zhao, D.*, M. Kane. Loblolly pine tree equations for volume-to-weight conversion ratios, aboveground biomass and biomass allocation. UGA/PMRC Technical Report 2016-1. 42 pp.

Zhao, D.*, M. Kane, M. Wang.  Comparison of loblolly pine and slash pine plantation performance through Age 18 in the Lower Coastal Plain.  UGA/PMRC Technical Report 2015-2.  31 pp.

Kane. M., M. Wang, J. Rheney, D. ZhaoWestern Gulf Culture Density Study: Results through Age 12. UGA/PMRC Technical Report 2015-1. 55 pp.

Zhao, D.*, M. Kane. 2014. Coastal Plain Culture/Density Study: Age 18 Analysis for Loblolly pine. UGA/PMRC Technical Report 2014-3.  42 pp.

Borders, B., D. Zhao, M. Wang, M. Kane. Growth and Yield Models for Second/Third Rotation Loblolly Pine Plantations in the Piedmont/Upper Coastal Plain and Lower Coastal Plain of the Southeastern U.S.  UGA/PMRC Technical Report 2014-1. 49 pp.

Wang, M., M. Kane, D. Zhao. 2014.  SAGS Culture/Density Study: Age 15 Results.  UGA/PMRC Technical Report 2014-2. 82 pp.

Zhao, D.*, M. Kane. 2013. Piedmont and Upper Coastal Plain Loblolly Pine Site Preparation Study: Results through Age 25. UGA/PMRC Technical Report 2013-1. 40 pp.

Kane, M.,M. Wang, D. Zhao, J. Rheney, M. Messina. 2013. Western Gulf Culture Density Study: Results through Age 10. UGA/PMRC Technical Report 2013-2. 54 pp.

Zhao, D.*, Kane, M. 2011. Coastal Plain culture/density study: Age 15 analysis. UGA/PMRC TTechnical Report 2011-2. 62 pp.

Kane, M; Zhao, D; Rheney, J; Chappell, N; and Messina, M. 2011. Western Gulf culture/ density study: results through age 8 on non-thinned plots. UGA/PMRC Technical Report 2011-1. 52 pp.

Zhao, D.* and Kane, M. 2010. SAGS culture and density study: Age 12 results. UGA/PMRC Technical Report 2010-1. 35 pp.

Kane, M; Harrison, W.M.; and Zhao, D. 2009. Slash pine improved planting stock-vegetation control study: Age 21 results. UGA/PMRC Technical Report 2009-3. 63 pp.

Zhao, D*; Kane, M; and Borders, B. 2009. Crown ratio and relative spacing relationship for loblolly pine plantations. UGA/PMRC Technical Report 2009-2. 26 pp.

Zhao, D*; Kane, M; and Borders, B. 2009. Development and applications of the relative spacing model for loblolly pine plantations. UGA/PMRC Technical Report 2009-1. 29 pp.

Zhao, D*; Kane, M; and Harrison, M. 2008. SAGS Culture/Density Study: Results Through Age 10. UGA/PMRC Technical Report 2008-3. 33 pp.

Zhao, D*; Kane, M; Borders, B; and Harrison, M. 2007. Slash Pine Site Preparation Study: Results through Age 26. UGA/PMRC Technical Report 2007-3. 63 pp.

Zhao, D*; Borders, B; Wang, M; and Kane, M. 2007. Modeling Mortality of Second-Rotation Loblolly Pine Plantations in the Piedmont/Upper Coastal Plain and Lower Coastal Plain of the Southeastern United States. UGA/PMRC Technical Report 2007-5. 31 pp.

Zhao, D*; Kane, M; Borders, B; and Harrison, M. 2007.Piedmont Loblolly Pine Site Preparation Study: Results through Age 21. UGA/PMRC Technical Report 007-4. 50 pp.

Zhao, D*; Kane, M; Borders, B; and Harrison, M. 2007. Growth Response of Slash and Loblolly Pine Plantations to Different Site-Preparation Treatments with or Without Post-plant Herbaceous Weed Control on Lower Coastal Plain Sites of North Florida. UGA/PMRC Technical Report 2007-2. 30 pp.

Grants

"An Improved biomass and carbon database for US tree species" USDA-FIA. 2018-2019. (UGA portion $35,000. PI)

"An Improved biomass and carbon database for US tree species" USDA-FIA. 2016-2017. (UGA portion $77,500. PI)

"An Improved biomass and carbon database for US tree species" USDA-FIA. 2013 -2016. (UGA portion $248,586. PI) .

"Biomass Model System for Intensively Managed Loblolly Pine Plantations" TIP-FRP. 07/01/2009-06/30/2010. $70,833. PI.

"Modification and Development of Growth and Yield Models for Genetically Enhanced Loblolly Pine Plantations" TIP-FRP. 07/01/2009-06/30/2010. $52,671. Co-PI

"High Density Southern Pine Feedstock Production and Carbon Sequestration" USDA AFRI. 01/01/2011-12/31/2016. $887,379.00. Co-PI

"Integrating research, education, and extension for enhancing southern pine climate change mitigation and adaption"  USDA NIFA. 01/01/2011-12/31/2016. $20,000,000. (UGA portion $1,340,000). Co-PI 

 

Others

Book
Zhao, D. 2011. MODELING MIXED SPECIES FOREST STANDS - Empirical Modeling Strategies. LAP LAMBERT Academic Publishing. 148 pp.

Courses Regularly Taught:
Service:
  1. UGA Graduate Council (8. 2016 - 9.2019)
  2.  UGA Research Scientist Promotion Committee (8.2018 - 8.2021)