Principal Research Interests  Professional Memberships   Course Teaching   Publications and Manuscripts   Conference Papers   Invited Seminars  Workshops and Forums   Professional Awards  Professional Services  Position Openings  Lab web

Principal Research Interests:

        My research focuses on the interactions among atmosphere, biosphere, and human dimension in the context of climate change, chemical element cycles, and policy-making. To study these interactions, I use a systems approach that integrates the basic principles of biology, physics, and chemistry. My primary research is to integrate the knowledge derived from field and laboratory experiments with theoretical and computational techniques to advance ecosystem sciences.

        One of my major research activities is on carbon exchanges between terrestrial ecosystems and the atmosphere.  I began studies in this area during my dissertation in University of Alaska.  While the growing body of evidence indicates there are profound changes of climate in northern high latitudes, I was struck by the dramatic changes of permafrost and soil thermal regime and their influences on carbon dynamics in the region. Consequently, I spent several years investigating how changes of soil thermal regime, including permafrost melting, affect the carbon assimilation and decomposition in the region.  I was also intrigued by the increase of wildfires in northern ecosystems and their consequences with respect to carbon and nitrogen cycling.  To explore the fire questions, I used modeling as a tool to examine the interactions between fire disturbances and their effects on soil thermal dynamics, hydrological dynamics, and carbon and nitrogen cycles in boreal forests.

        My second major research activity is on modeling trace gas emissions from ecosystems and their effects on climate and society. I’ve modeled methane exchanges between ecosystems and the atmosphere by considering the effects of permafrost dynamics, hydrological and vegetation dynamics on methane cycling. The model of methane dynamics I developed has been tested and validated by using observations from a variety of ecosystems at different geographical regions.  As a case study, the model has been applied to Alaska to examine the responses of methane emissions to the climate change.  The model has also been applied for the past and 21st century to study methane cycling in Northern Hemisphere.  Now I am collaborating with a number of colleagues in the US and Canada to model the methane dynamics in temperate and tropical regions. In addition, I have been also actively involved in modeling nitrogen gas (e.g. N2O) emissions from terrestrial ecosystems.

        Recently, my research interests were expanded to analyzing consequences of ozone damage and other pollutants for ecosystem services and the economy.  For example, I’ve been involved in several studies using a biogeochemistry model, Terrestrial Ecosystem Model (TEM) and MIT’s Integrated Global System Model to investigate the ozone effects on net primary productivity and carbon sequestration for the continental US and the globe. The research concluded that the effects of ozone should be factored into future calculations of the US carbon budget.  At the global scale, tropospheric ozone effects on ecosystem dynamics and the interaction with climate policy produce a large feedback to estimating climate policy costs. This feedback had not been quantified before.

Professional Memberships:

Ø       Ecological Society of America

Ø       American Geophysical Union

Ø       American Association for the Advancement of Science

Publications:

Ø       Melillo, J.M., S. Hassol, D. Archer, T. Callaghan, F.S. Chapin III, T. Christensen, A.D. McGuire, K. Walter, and Q. Zhuang. Methane from the Arctic: Global warming wildcard. Chapter in United Nations Environmental Programme Yearbook, 2008. (PDF).

Ø       Xiao, J., and Q. Zhuang, Drought effects on large fire activity in Canadian and Alaskan forests, Environ. Res. Lett. 2 044003 (6pp)   doi:10.1088/1748-9326/2/4/044003, 2007. (PDF)

Ø       Balshi M.S., A.D.McGuire, Q. Zhuang, J.M.Melillo, D.W. Kicklighter, E.Kasischke, C. Wirth, M. Flannigan, J.Harden, J.S.Clein, T.J. Burnside, J.McAllister, W.A.Kurz, M.Apps, and A. Shvidenko, The role of historical fire disturbance in the carbon dynamics of the pan-boreal region: A process-based analysis. J. Geophys. Res, 112, G02029, 2007. (PDF)

Ø       Zhuang, Q.,  J. M. Melillo, A. D. McGuire, D. W. Kicklighter, R. G. Prinn, P. A. Steudler, B. S. Felzer, and S. Hu,  Net emissions of CH4 and CO2 in Alaska: implications for the region's greenhouse gas budget ,  Ecological Applications: Vol. 17, No. 1, pp. 203–212,  2007. (PDF)

Ø       Sitch, S.,   A.D. McGuire,  J. Kimball,  N. Gedney,  J. Gamon,  R. Rengstrom, A. Wolf,   Q. Zhuang,  J. Clein,   and  K. C. McDonald,  Assessing the carbon balance of circumpolar arctic tundra using remote sensing and process modeling, Ecological Applications, 17 (1), 2007, 213-234, 2007. (PDF)

Ø       Zhuang, Q., J. M. Melillo, M. C. Sarofim, D W. Kicklighter, A. D. McGuire, B. S. Felzer, A. Sokolov, R. G. Prinn, P. A. Steudler, and S. Hu, CO2 and CH4 exchanges between land ecosystems and the atmosphere in northern high latitudes over the 21st century, Geophys. Res. Lett., 33, L17403, doi:10.1029/2006GL026972, 2006. (PDF).

Ø       Euskirchen, E.S.­­, A.D. McGuire, D.W. Kicklighter, Q. Zhuang, J.S. Clein, R.J. Dargaville, D.G. Dye, J.S. Kimball, K.C. McDonald,  J.M. Melillo, V.E. Romanovsky, N.V. Smith,  Importance of recent shifts in soil thermal dynamics on growing season length, productivity, and carbon sequestration in terrestrial high-latitude ecosystem, Global Change Biology, 12, 731-750, doi:10.1111/j.1365-2486.2006.01113.x, 2006. (PDF)

Ø       Felzer B., J. Reilly, J. Melillo, D. Kicklighter, C. Wang, R. Prinn, M. Sarofim, Q. Zhuang, Past and future effects of ozone on net primary production and carbon sequestration using a global biogeochemical model, Climatic Change 73:345-373, doi:10.1007/S10584-005-6776-4, 2005. (PDF)

Ø       Zhuang, Q., J. M. Melillo, D. W. Kicklighter, R. G. Prinn, D. A. McGuire, P. A. Steudler, B. S. Felzer, and S. Hu, Methane fluxes between terrestrial ecosystems and the atmosphere at northern high latitudes during the past century: A retrospective analysis with a process-based biogeochemistry model, Global Biogeochemical Cycles, 18, GB3010, doi:10.1029/2004GB002239, 2004. (PDF)

Ø       Felzer B., D. Kicklighter, J. Melillo, C. Wang, Q. Zhuang, and R. Prinn, Ozone effects on net primary production and carbon sequestration in the conterminous United States using a Biogeochemistry Model. Tellus 56B, 230-248, 2004 (PDF)

Ø       Felzer, B., J. Reilly, J. Melillo, D. Kicklighter, C. Wang, R. Prinn, M. Sarofim & Q. Zhuang Past and Future Effects of Ozone on Net Primary Production and Carbon Sequestration Using a Global Biogeochemical Model. MIT Joint Program on Science and Policy of Global Change Report No. 90. 2004 Massachusetts Institute of Technology, Cambridge, Massachusetts. (PDF ).

Ø       Zhuang, Q., A. D. McGuire, J. M. Melillo, J. S. Clein, R. J. Dargaville, D. W. Kicklighter, R. B. Myneni, J. Dong, V. E. Romanovsky, J. Harden, and J. E. Hobbie, Carbon cycling in extratropical terrestrial ecosystems of the Northern Hemisphere during the 20th Century: A modeling analysis of the influences of soil thermal dynamics, Tellus, 55B, 751-776, 2003. (PDF)

Ø       Zhuang, Q., J. M. Melillo, D. W. Kicklighter, R. G. Prinn, P. A. Steudler, D. A. McGuire, B. S. Felzer, and S. Hu, A process-based modeling analysis of methane exchanges between Alaskan terrestrial ecosystems and the atmosphere. MIT Joint Program on Science and Policy of Global Change. Massachusetts Institute of Technology, Cambridge, Massachusetts. Report No. 104, 2003. ( PDF )

Ø       Zhuang, Q., A. D. McGuire, K. P. O'Neill, J. W. Harden, V. E. Romanovsky, J. Yarie. Modeling the soil thermal and carbon dynamics of a fire chronosequence in Interior Alaska, J. Geophy. Res., 107, 8147, doi:10.1029/2001JD001244, 2002. [Printed 108(D1), 2003]. (PDF)

Ø       Felzer B. S., D. W. Kicklighter, J. M. Melillo, C. Wang, Q. Zhuang, and R. G. Prinn, Ozone Effects on Net Primary Production and Carbon Sequestration in the Conterminous United States Using a Biogeochemistry Model. MIT Joint Program on Science and Policy of Global Change Report No. 90. 2002 Massachusetts Institute of Technology, Cambridge, Massachusetts. 23 p. (PDF ).

Ø       Zhuang, Q., V. E. Romanovsky, A. D. McGuire, Incorporation of a permafrost model into a large-scale ecosystem model: Evaluation of temporal and spatial scaling issues in simulating soil thermal dynamics, J. Geophys. Res., 106, D24, 33,649-33,670, 2001. (PDF)

Ø       McGuire, A.D., M. Apps, F.S. Chapin III, R. Dargaville, M.D. Flannigan, E.S. Kasischke, D. Kicklighter, J. Kimball, W. Kurz, D.J. McRae, K. McDonald, J. Melillo, R. Myneni, B.J. Stocks, D.L. Verbyla, and Q. Zhuang. Land cover disturbances and feedbacks to the climate system in Canada and Alaska. In: Land Change Science: Observing, Monitoring, and Understanding Trajectories of Change on the Earth's Surface (eds. Gutman G., Janetos A.C., Justice C.O, Moran E.F., Mustard J.F., Rindfuss R.R., Skole D., Turner II B.L., Cochrane, M.A.), pp. 139-161. Kluwer Adademic Publishers, Dordrecht, Netherlands, 2004.

Ø       Zhuang, Q., and W. S. Reeburgh,  Introduction to Special Section on Recent Field Observations and Modeling Studies on Methane, In press at J. Geophys. Res. - Biogeosciences.

Ø       Xiao, J., Zhuang, Q., D. D. Baldocchi, B. E. Law, A. D. Richardson, J. Chen, R. Oren, G. Starr, A. Noormets, S. Ma, S. B. Verma, S. Wharton, S. C. Wofsy, P V. Bolstad, S. P. Burns, D. R. Cook, P. S. Curtis, B. G. Drake, M. Falk, M. L. Fischer, D. R. Foster, L. Gu, J. L. Hadley, D. Y. Hollinger, G. G. Katul, M. Litvak, T. A. Martin, R. Matamala, S. McNulty, T. P. Meyers, R. K. Monson, J. W. Munger, W. C. Oechel, K. T. Paw U, H. P. Schmid, R. L. Scott, G. Sun, A. E. Suyker, M. S. Torn, 2008. Estimation of net ecosystem carbon exchange for the conterminous United States by combining MODIS and AmeriFlux data, In press at Agricultural and Forest Meteorology.  

Ø       Xiao, J., Zhuang, Q., Liang, E., McGuire, A. D., Kicklighter, D. W., Moody, A., and Melillo, J. M., Droughts and their impacts on carbon cycling of terrestrial ecosystems in China during the 20th century; in review at JGR-Atmosphere.

Ø       Tang, J. and Q. Zhuang, A Global Sensitivity and Bayesian Inference Framework to Improve the Parameter Estimation and Prediction of Process-Based Terrestrial Ecosystem Models, in review at Global Change Biology

Ø       Tang, J. and Q. Zhuang, Equifinality in Parameterization of Process-Based Biogeochemistry Models: A Significant Uncertainty Source to Regional Carbon Dynamics. In review at J. Geophys. Res. - Atmos.

Ø       Zhuang, Q., J. He, Y. Hu, J. Xiao, and T. Luo, Carbon Dynamics of Terrestrial Ecosystems in the Tibetan Plateau during the 20th Century: An Analysis with a Process-Based Biogeochemistry Model, in review at Global Ecology and Biogeography

Ø       Xiong, X., C. Barnet, Q. Zhuang, X. Liu, Satellite Observed Increase of Tropospheric Summer Methane Concentration:  Is it due to Wetland Emission over the High Northern Hemisphere? In review at Geophy. Res. Lett.

Ø       He, J., Q. Zhuang, and T. Luo, Terrestrial Carbon Dynamics along a Permafrost-dominated North-south Transect in the Tibetan Plateau, in review at Ecological Research.

Ø       Zhuang, Q. , T. Zhang, J. Xiao, and T. Luo, Quantification of Net Primary Production of Chinese Forest Ecosystems with Spatial Statistical Approaches, in review at Mitigation and Adaptation Strategies for Global Change

Ø       Xiao, J., Zhuang, Q., D. D. Baldocchi, B. E. Law, A. D. Richardson, J. Chen, R. Oren, G. Starr, A. Noormets, S. Ma, S. B. Verma, S. Wharton, S. C. Wofsy, P V. Bolstad, S. P. Burns, D. R. Cook, P. S. Curtis, B. G. Drake, M. Falk, M. L. Fischer, D. R. Foster, L. Gu, J. L. Hadley, D. Y. Hollinger, G. G. Katul, M. Litvak, T. A. Martin, R. Matamala, S. McNulty, T. P. Meyers, R. K. Monson, J. W. Munger, W. C. Oechel, K. T. Paw U, H. P. Schmid, R. L. Scott, G. Sun, A. E. Suyker, M. S. Torn, 2008. A Continuous Measure of Gross Primary Productivity for the Conterminous U.S. Derived from MODIS and AmeriFlux Data, In review at Global Change Biology.  

Ø        Jiang, Y.,  Q. Zhuang, J. Little, and M. Flannigan, Derivation of Fire Recurrence Intervals from Canadian Boreal Wildfire Data, in review at International Journal of Wildland Fire.

Thesis and Dissertation:

Ø       Zhuang Q., Modeling the influences of climate change, permafrost dynamics, and fire disturbance on carbon dynamics of high latitude ecosystems. University of Alaska Fairbanks. Ph.D. Dissertation. December 2001.

Ø       Zhuang Q., The study of the plant morphological information processing,. The Institute of Botany, Chinese Academy of Sciences, Beijing. M.S. Thesis. 1991.

Conference Papers /Presentations:      

Ø       Zhuang, Q., Modeling CO2 and CH4 emissions in the Arctic, Northern Eurasia Earth Science Partnership Initiative (NEESPI) Science Team meeting, June 2-6, 2008, Helsinki, Finland. (Invited)

Ø       He, J., Q. Zhuang, and T. Luo, Terrestrial Carbon Dynamics along a Permafrost-dominated North-south Transect in the Tibetan Plateau, 9th international conference on permafrost, Permafrost on a warming planet: Impacts on ecosystems, infrastructure and climate, University of Alaska Fairbanks, June 29-July 3, 2008.

Ø       Zhuang, Q.;  Xu, K.; Tang, J., Responses of global soil methane consumption to changes of climate, land-use and land-cover, and atmospheric chemistry deposition during the 20th century, European Geosciences Union, General Assembly 2008, Vienna, Austria, 13 – 18 April 2008

Ø       Xiao, J., Q. Zhuang, Estimation of Continental-Scale Gross Primary Productivity by Combining MODIS and AmeriFlux Data, AAG Meeting, Boston, MA, April 15-19, 2008

Ø       Tang, J., Q. Zhuang, Changes of Growing Season Length and Soil Thermal Regimes in Alaskan Boreal Forests, 93rd ESA Annual Meeting, Milwaukee, Wisconsin, August 3-8, 2008

Ø       Zhuang, Q., K, Xu, and J. Tang, Evaluating effects of changes of climate, land-use and land-cover, and atmospheric nitrogen deposition and methane concentrations on global soil methane consumption, 93rd ESA Annual Meeting, Milwaukee, Wisconsin, August 3-8, 2008

Ø       Zhuang, Q., and K. Xu, Global NPP supply and bioenergy potentials: An analysis with a process-based terrestrial ecosystem model, the Eleventh Annual Conference on Global Economic Analysis. Helsinki, Finland, June 12-14, 2008

 

Ø       Tang, J., Q. Zhuang, Quantifying the Uncertainty of Carbon Dynamics in Boreal Forests with High-performance Computing, Computing Research Institute poster session, Purdue University, IN. October 25, 2007.

Ø       Tang, J., Q. Zhuang, A Global Sensitivity Analysis and Bayesian Inference Framework to Improve the Parameter Estimation and Prediction of Process-Based Terrestrial Ecosystem Models, Purdue Ecological Sciences and Engineering Symposium, Purdue University, IN. November 9, 2007.

Ø       Lu, X., Q. Zhuang, Y. Hu, and J. Tang,  Modeling Responses of Net Primary Productivity to Climatic Changes in Indiana During the 20th Century, Purdue Ecological Sciences and Engineering Symposium, Purdue University, IN. November 9, 2007.

Ø       Zhuang, Q., Modeling impact of permafrost dynamics on carbon dioxide and methane cycling in northern high latitudes, American Geophysical Union annual meeting, San Francisco, CA, 10–14 December 2007. (Invited)

Ø       Zhuang, Q., Current issues on methane modeling, Workshop of “Towards a process-based description of trace gas emissions in land surface models”, 16 -19 October 2007, Marina Plaza, Helsingborg, Sweden (Invited Keynote Speaker)

Ø       Xiao, J. and Q. Zhuang, Prediction of Continental-Scale Net Ecosystem Carbon Exchange by Combining MODIS and AmeriFlux Data, American Geophysical Union annual meeting, San Francisco, CA, 10–14 December 2007.

Ø       McGuire, A.D., F.S. Chapin III, J. Walsh, C.Wirth, Q. Zhuang, and E. Euskirchen.  Arctic feedbacks to the carbon-climate system. AAAS Annual Meeting, San Francisco, California. Invited, 2007.

Ø       Zhuang, Q., Modeling Dynamics of Water, Carbon, and Peatlands in Northern High Latitudes, Conference of Carbon in Peatlands: State-of-the-Art and  Future Research, Wageningen, the Netherlands, 15-18 April, 2007.

 

Ø       Zhuang, Q.,  A. Mialon, M. Fily, A. Royer, The Influence of the Changes of Wetland Area Extent on Carbon Dioxide and Methane Dynamics over the Pan-Arctic from 1988 to 2000, American Geophysical Union annual meeting, San Francisco, CA, 11–15 December 2006.

Ø       Xiao, J., Q. Zhuang, The Effects of Severe Droughts on Net Primary Productivity and Carbon Sequestration of Terrestrial Ecosystems in China over the 20th Century, American Geophysical Union annual meeting, San Francisco, CA, 11–15 December 2006.

Ø       Zhuang, Q., Quantifying Net Land-Atmosphere Exchanges of CH4 and CO2 in Alaskan Boreal Ecosystems, Western Pacific Geophysics Meeting, Beijing China, 24-27 July 2006.  

Ø       Zhuang, Q.,  A. Mialon, M. Fily, A. Royer, Quantifying Net Methane Exchanges Between the Terrestrial Biosphere and the Atmosphere in Northern High Latitudes With a Biogeochemistry Model and Microwave Satellite Wetland Data, Earth System Science Partnership (ESSP) Global Environmental Change, Open Science Conference, Beijing, China, 9-12 November, 2006.

Ø       McGuire, A. David, E. Euskirchen, F.S. Chapin III, M. Balshi, Q. Zhuang, J. Melillo, D. Kicklighter, J. Walsh, and C. Wirth, Integrated Regional Changes in Boreal Forests: Implications for the Global Climate System, Boreal Forest Research Association (IBFRA), Umea, Sweden, August 28-30, 2006.  

Ø       Zhuang, Q., and A. Mialon, Modeling Seasonal and Interannual Variability of Net Methane Emissions in Northern North America, 2006 Joint Assembly, Baltimore MD, 23 - 26 May, 2006.  

Ø       Zhuang, Q., J. Melillo, D. Kicklighter, B. Felzer, D. McGuire, R. Prinn, A Modelling Analysis of Impact of Fire Disturbances on Net Carbon Exchanges in Boreal Terrestrial Ecosystems, ESA meeting, Memphis, Tennessee, 2006.

Ø       Kicklighter, D.W., J.M. Melillo, R.G. Prinn, A.D. McGuire, B.S. Felzer, And Q. Zhuang, Relative importance of multiple stresses on terrestrial carbon sequestration, 2006 Joint Assembly, Baltimore MD, 23 - 26 May, 2006.  

Ø       Kicklighter, D.W., J.M. Melillo, R.G. Prinn, A.D. McGuire, B.S. Felzer, and Q. Zhuang, Importance of DOC exports on estimates of terrestrial carbon sequestration, ESA meeting, Memphis, Tennessee, 2006.

Ø       Felzer, B. S., M. Williams, J. M. Melillo, D.W. Kicklighter, Q. Zhuang, E. B. Rastetter, R. G. Prinn, The role of evapotranspiration on carbon dynamics and ozone uptake on temperate forests in the U.S., ESA meeting, Memphis, Tennessee, 2006.

Ø       Felzer, B. S., M. Williams, J. M. Melillo, D.W. Kicklighter, Q. Zhuang, E. B. Rastetter, R. G. Prinn, The role of evapotranspiration on the relative influence of ozone on regional carbon dynamics, European Geosciences Union, General Assembly 2006, Vienna, Austria, 02 – 07 April 2006.

 

Ø       Zhuang, Q.,  J. M. Melillo, A. David McGuire, R. G. Prinn, B. S. Felzer, D. W. Kicklighter et al., Net methane exchanges between the atmosphere and land ecosystems in the northern high latitudes over the 21st century, Americal Geophysical Union Annual Meeting, San Francisco, CA, 5-9 December, 2005.

Ø       Zhuang, Q.,  J. M. Melillo, B. S. Felzer, D. W. Kicklighter, A. David McGuire, R. G. Prinn, Modelling CH4 and CO2 fluxes in northern high latitudes under contemporary climate conditions, 90th ESA Annual Meeting, Montréal, Canada, August 7 - 12,  2005. (Invited).

Ø       Kicklighter, D.W., J.M. Melillo, R.G. Prinn, A.D. McGuire, B.S. Felzer, and Q. Zhuang, Relative importance of multiple stresses on terrestrial carbon sequestration, 90th ESA Annual Meeting, Montréal, Canada, August 7 - 12,  2005.

Ø       Euskirchen, E. S., Q. Zhuang, A. David McGuire, J. Harden, M. Mack, C. C.Thompson, Simulating vegetation, soil thermal, and carbon dynamics within a fire chronosequence of interior Alaska, The Chronosequence Approach for Studying Boreal Carbon Dynamics, University of California Irvine, March 2005

Ø       Zhuang Q., J. M. Melillo, A. D. McGuire, D. W. Kicklighter, R. G. Prinn, P. A. Steudler, B. S. Felzer, and S. Hu, Methane emissions and the greenhouse gas budget in Alaska for the past and 21st centuries, San Francisco, CA, 13 - 17 December 2004.

Ø       Felzer B., Q. Zhuang, J. Melillo, D. Kicklighter, R. Prinn, The Effect of Ozone on Ecosystem Processes Using Improved Hydrological Cycling Within a Biogeochemical Model, San Francisco, CA, 13 - 17 December 2004.

Ø       Euskirchen S.E., A.D. McGuire, D.W. Kicklighter, Q. Zhuang, J.S. Clein, K.C. McDonald, N.V. Smith, J.S. Kimball, R.J. Dargaville, D.G. Dye, Recent shifts in the dynamics governing growing season length and productivity in terrestrial high-latitude ecosystems. San Francisco, CA, 13 - 17 December 2004.

Ø       Zhuang, Q., J.M. Melillo, B.S. Felzer, D.W. Kicklighter, A.D. McGuire, A. Sokolov, R.G. Prinn, P. Steudler, and S. Hu, The global warming potential budget of net methane and carbon dioxide exchanges in northern high latitudes, The Ecological Society of America Annual Meeting, Portland, Oregon, August 1- 6, 2004.

Ø       Harden J.W. , M. R. Turetsky, J. Carrasco, H. Veldhuis, S. Wofsy, and Q. Zhuang, Organic Soils of the North: a Mismatch for our Current Climate? 2004 Joint Assembly: AGU, the Canadian Geophysical Union (CGU) and the Society of Exploration Geophysicists (SEG), Montreal, Canada, 17-21 May 2004.

Ø       Zhuang, Q., J.M. Melillo, D.W. Kicklighter, B.S. Felzer, A. Sokolov, R.G. Prinn, A.D. McGuire, P. Steudler, and S. Hu, The relationship of global warming potentials to methane and carbon dioxide exchanges in northern high latitudes estimated with a process-based biogeochemistry model, International science conference on "Climate Disturbance Interactions in Boreal Forest Ecosystems", Fairbanks, Alaska, U.S.A., May 3-7, 2004.(Invited)

 

Ø       Zhuang, Q., J. M. Melillo, D. W. Kicklighter, R. G. Prinn, P. A. Steudler, D. A. McGuire, B. S. Felzer, and S. Hu, Methane emissions from the terrestrial ecosystems at northern high latitudes during the 20th Century: A retrospective analysis with a process-based biogeochemistry model, San Francisco, CA, 8 - 12 December 2003.

Ø       Felzer B., J. Reilly, J. Melillo, D. Kicklighter, C. Wang, R. Prinn, M. Sarofim, Q. Zhuang, Implication of ozone on carbon sequestration and climate policy in the U.S. using the MIT Integrated Global Systems Model, San Francisco, CA, 8 - 12 December 2003.

Ø       McGuire A. D. , J. Clein, Q. Zhuang, Modeling Modes of Variability in Carbon Exchange Between High Latitude Terrestrial Ecosystems and the Atmosphere: A Synthesis of Progress and Identification of Challenges, First SEARCH Open Science Meeting, Seattle, Washington, 27-30 October 2003.

Ø       Global Change Forum XXI, Climate Understanding, Long-Term Goals, and Current Mitigation Effort, Massachusetts Institute of Technology, Cambridge, MA, Oct. 8-10, 2003. (Invited)

Ø       Harden J. , M. Turetsky, J. Carrasco, K. Manies, D. McGuire, J. Neff, M. Pavich, N. Rosenbloom, S.E. Trumbore, Q. Zhuang, Toward understanding long-term terrestrial carbon: mechanisms, modern tools, and modeling of soil systems, The INQUA Congress, Reno Hilton Resort & Conference Center, Reno, Nevada USA, July 23 - 30, 2003.

Ø       Zhuang, Q., J. M. Melillo, D. W. Kicklighter, R. G. Prinn, P. A. Steudler, D. A. McGuire, B. S. Felzer, and S. Hu, Modeling methane consumption and emission between the terrestrial biosphere and the atmosphere, The Ecological Society of America, ESA/ISEM annual meeting, Savannah, Georgia, August 3-5, 2003.

 

Ø       Janetos, J. et al., (including Q. Zhuang), SCOPE Workshop: Forest conservation and management in an information age, Swope Center, Marine Biological Laboratory, Woods Hole, MA, 15-18 December 2002.

Ø       Zhuang, Q., Jerry M. Melillo, David A. McGuire, Roger J. Dargaville, David. W. Kicklighter, Joy S. Clein, Ranga B. Myneni, Jiarui Dong, Vladimir E. Romanovsky, Jennifer Harden, and John E. Hobbie. Effects of soil thermal dynamics on carbon cycling in extratropical terrestrial ecosystems of the Northern Hemisphere. AGU 2002 Fall Meeting, Moscone Center, San Francisco, CA. December 6-10, 2002.

Ø       Felzer B., D. Kicklighter, J. Melillo, C. Wang, Q. Zhuang, R. Prinn, Ozone effects on global vegetation productivity and carbon sequestration using a biogeochemistry model, AGU 2002 Fall Meeting, Moscone Center, San Francisco, CA. December 6-10, 2002.

Ø       Zhuang,Q., A.D. McGuire, J.M. Melillo, J.S. Clein, R.J. Dargaville, R.B. Myneni, J. Dong, V.E. Romanovsky, J. Harden, and J.E. Hobbie, Carbon cycling in extratropical terrestrial ecosystems of the Northern Hemisphere during the 20th Century: A modeling analysis of the influences of soil thermal dynamics. NASA LCLUC science team meeting, University of Maryland, College Park, Maryland. November 20-22, 2002.

Ø       Felzer B. S., D. W. Kicklighter, J. M. Melillo, C. Wang, Q. Zhuang, and R. Prinn, Ozone Effects on Global Net Primary Production and Carbon Sequestration Using a Biogeochemistry Model. EOS Investigator Working (IWG) meeting, the Turf Valley Resort and Conference Center in Ellicott City, MD. November 18-20, 2002.

Ø       Harden J.W., A.D. McGuire, J. Neff, K.P. O'Neill, B.J. Stocks, Zhuang, Q., Soil carbon of Northern latitudes and their potential for CO2 exchange, Natural Resource Management to Offset Greenhouse Gas Emissions, Raleigh, NC. November 19-21, 2002.

Ø       Zhuang, Q., J.S. Clein, A.D. McGuire, R.J. Dargaville, V.E. Romanovsky, J. Harden, D.W. Kicklighter, J.M. Melillo, J.E. Hobbie, and E.B. Rastetter. Modeling the effects of soil thermal dynamics on the seasonality of carbon fluxes across northern temperate and high latitude regions. Annual Meeting of the Ecological Society of America. Tucson, Arizona. August 4-9, 2002.

Ø       Felzer, B., J. M. Melillo, and Q. Zhuang, Surface Ozone Effects on Productivity Using a Biogeochemistry Model, 2002 Spring Meeting, Washington Convention Center, Washington, DC. May 28-31, 2002.

Ø       Clein, J.S., A.D. McGuire, Q. Zhuang. TEM circumpolar model results with output data for tower sites. Workshop for development of a research agenda to determine the current circumpolar carbon budget. Fairbanks, Alaska. 2002.

 

Ø       Zhuang, Q., J.S. Clein, A.D. McGuire, R.J. Dargaville, D.W. Kicklighter, J.M. Melillo, J.E. Hobbie, and E.B. Rastetter. Modeling the effects of soil thermal dynamics on the seasonality of carbon fluxes across northern temperate and high latitude regions. Fall Meeting of the American Geophysical Union. San Francisco, California. Dec, 2001.

Ø       Jennifer W. Harden, Michelle Mack, Hugo Veldhuis, Kenji Yoshikawa, Q. Zhuang, Fire Dynamics and Implications for Carbon and Nitrogen Cycling in Boreal Forests, Fall Meeting, Moscone Center, San Francisco, CA, December 10-14, 2001.

Ø       Zhuang, Q., A. D. McGuire, J. S. Clein, et al., Modeling the effects of soil thermal dynamics on the seasonality of CO2 of monitoring stations at global scale, LAII-ATLAS, all scientist meeting, Salt Lake City, Utah. November, 2001.

Ø       Zhuang, Q., A. D. McGuire et al., Workshop for ARCSS project "A Retrospective Analysis of Alaska as a Regional System", University of Alaska Fairbanks, Fairbanks, Alaska. August 21-22, 2001.

Ø       Zhuang, Q., A. David McGuire, Jennifer Harden, Katherine P. O'Neill, Vladimir E. Romonanvsky, John Yarie, Modeling the Carbon Dynamics of a Fire Chronosequence in Interior Alaska, The 86th ESA Annual Meeting, the Monona Terrace Convention Center and the University of Wisconsin, Madison. August 5-9, 2001.

Ø       Zhuang, Q., V. E. Romanovsky, A. D. McGuire, Modeling soil thermal and carbon dynamics of a fire chronosequence in Interior Alaska, LTER site review, Fairbanks, AK. 2001.

 

Ø       Zhuang, Q., A. David McGuire, Jennifer Harden, Katherine P. O'Neill, John Yarie. Modeling the Carbon Dynamics of a Fire Chronosequence in Interior Alaska, San rancisco. AGU annual meeting. December 5-9, 2000.

Ø       McGuire A. D., R.A. Meier, Q. Zhuang, M. Macander, T. S. Rupp, E. Kasischke, D. Verbyla, D. W. Kicklighter, and J. M. Melillo. The role of fire disturbance, climate, and atmospheric CO2 in the response of historical carbon dynamics in Alaska from 1950 to 1995: The importance of fire history, San Francisco. AGU annual meeting. December 5-9, 2000.

Ø       Meier R. , Jennifer Harden, Cherie Silapaswan, Dave Swanson, Q. Zhuang, Dave McGuire, Characterization of Soil Drainage Classes for the Study of Soil Carbon Storage in Alaska. San Francisco. AGU annual meeting. December 5-9, 2000.

Ø       Zhuang, Q., A. David McGuire, Vladimir E. Romanovsky, Joy S. Clein, Xinxian Zhang, David W. Kicklighter, Jerry M Melillo, Steve Wofsy, Incorporation of a permafrost model into a large-scale ecosystem model: Evaluation of temporal and spatial scaling issues in simulating carbon dynamics, LTER symposium, Alaska's Changing Boreal Forest LTER 2000 Symposium, Fairbanks, AK. Oct. 19-20, 2000.

Ø       Jennifer W. Harden1 and A. David McGuire With contributions from W. Cannon and K. Manies1 (USGS), R. Mier and Q. Zhuang (UAF), J. Neff (CSU), K. O'Neill (Duke), R. Ottmar and D. Sandberg (USFS), J. Randerson (CalTech), B. Stocks (Forestry Canada), The Biogeochemistry of Fire: modeling and measuring the impact of fire on carbon, nutrients, and atmospheric emissions, USGS workshop. Sept, 2000.

Ø       McGuire, A., Meier, R., Zhuang, Q., Macander, M., Rupp, T., Kasischke, E., Verbyla, D., Kicklighter, D., Melillo, J., The role of fire disturbance, climate, and atmospheric CO2 in the response of historical carbon dynamics in Alaska from 1950 to 1995, ESA's 85th Annual Meeting in Snowbird, Utah, August 6-10, 2000.

Ø       Zhuang, Q., V.E. Romanovsky, J.S. Clein, A.D. McGuire, J.M. Melillo, D.W. Kicklighter, and S. Wofsy. Modeling permafrost and carbon dynamics in an old black spruce ecosystem. Annual Meeting of the Ecological Society of America. Snowbird, Utah. 2000.

Ø       McGuire A.D., R.A. Meier, Q. Zhuang, M. Macander, T.S. Rupp, E. Kasischke, D. Verbyla, D.W. Kicklighte, and J.M. Melillo, The Role of Fire Disturbance, Climate, and Atmospheric CO2 in the Response of Historical Carbon Dynamics in Alaska from 1950 to 1995: A Process-based Analysis with the Terrestrial Ecosystem Model, International Science Conference. The Role of Boreal Forests and Forestry in the Global Carbon Budget. Edmonton, Alberta Canada. May 8-12, 2000.

Ø       Zhuang, Q., A. D. McGuire, V. E. Romanovsky, People and the forest: what's happening in our back yard. Fairbanks, AK. May 13, 2000.

Ø       McGuire, A. D., Q. Zhuang, et al, The role of fire disturbance, climate, and atmospheric CO2 in the response of historical carbon dynamics in Alaska from 1950 to 1995: A process-based Analysis with the Terrestrial Ecosystem Model. International Boreal Forest Research association Conference: The Role of Boreal Forests and Forestry in the Global Carbon Budget. May, 2000.

Ø       Zhuang, Q., A. D. McGuire, V. E. Romanovsky, Modeling Soil Temperature of Alaskan Black Spruce Forests, Frostfire Synthesis Meeting , Fairbanks, AK. March 21-23, 2000.

Ø       McGuire, A. D.; Meier, Rose A.; Zhuang, Q.; Macander, Matthew; Rupp, T. Scott; Kasischke, Eric; Verbyla, David; Kicklighter, David W.; and Melillo, Jerry M., The role of fire disturbance, climate, and atmospheric CO2 in the response of historical carbon dynamics in Alaska from1950 to 1995: A process-based analysis with the Terrestrial Ecosystem Model. Frostfire Synthesis Meeting. March 21-23, 2000.

Ø       Zhuang, Q., V.E. Romanovsky, J. S. Clein-Curley, A.D. McGuire, JM Melillo, D.W. Kicklighter, S. Wofsy, Modeling Permafrost and Carbon Dynamics in an Old Black Spruce Ecosystem. Frostfire Synthesis Meeting. March 21-23, 2000.

Ø       Zhuang, Q., A coupled model of soil thermal and biogecochemical dynamics. US Fish and Wildlife Research Unit, Fairbanks, AK. March 10, 2000.

Ø       Zhuang, Q., A. D. McGuire, V. E. Romanovsky, Modeling the soil thermal regime of Tussock tundra. Land-Atmosphere-Ice Interactions, the 2000 LAII workshop, Seattle. February 23-26, 2000.

Ø       A. D. McGuire, R. Meier, and Q. Zhuang et al., 1950-1995 fire disturbance to carbon balance of Alaska, Land-Atmosphere-Ice Interactions, the 2000 LAII workshop, Seattle. February 23-26, 2000.

 

Ø       Zhuang, Q., A. D. McGuire, R. E. Romanovsky, A coupled model of soil thermal and biogecochemical dynamics for application to boreal forest ecosystems: Evaluation of spatial and temporal scaling performance. Denali National Park, AK, 50th AAAS meeting symposium. September 18-22, 1999.

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