News in 2010
Dec. 28, 2010
Welcome Ms. Yaling Liu joins our lab to pursue her PhD with a Bachelor degree in Geography from Hubei University and a MS degree in meteorology from China Agriculture University.
Dec. 28, 2010
Our lab just published a study on investigating the growing season length of Alaskan terrestrial ecosystems.
Citation:
Tang, J., and Q. Zhuang (2010), Modeling soil thermal and hydrological dynamics and changes of growing season in Alaskan terrestrial ecosystems, Climatic Change, DOI 10.1007/s10584-010-9988-1.
Abstract:
We found that, in response to the projected warming, by year 2099, (1) the snow-free days will be increased by 41.0 and 27.5 days, respectively, in boreal forest and tundra ecosystems and (2) the growing season lengths will be more than 28 and 13 days longer in boreal forest and tundra ecosystems, respectively, compared to 2010.
Dec. 3, 2010
Congratulations to Yueyang Jiang who passed his Preliminary Exam and become a PhD candidate!
Dec. 1, 2010
Congratulations to Jinyun Tang who accepted a post-doctoral scientist offer from Lawrence Berkeley National Laboratory!
Nov. 27, 2010
Our lab just published a methane modeling study focusing on simulating methane production, oxidation, and transport (particularly ebullition) with different model complexities.
Citation:
Tang, J.,Zhuang, Q., Shannon, R. D., and White, J. R. (2010) Quantifying wetland methane emissions with process-based models of different complexities,Biogeosciences, 7, 3817-3837, doi:10.5194/bg-7-3817-2010
Abstract:
The models were tested through a group of sensitivity analyses using data from two temperate peatland sites in Michigan. We demonstrate that only the four-substance model with a pressure-based ebullition algorithm is able to capture the episodic emissions induced by a sudden decrease in atmospheric pressure or by a sudden drop in water table.
Nov. 23, 2010
Congratulations to Qing Zhu who passed his PhD Qualifying Exam and to Min Chen who passed his Preliminary Exam to advance to PhD candidacy!
Nov. 22, 2010
Our lab just published a synthesis study of US carbon fluxes based on satellite and eddy flux observations.
Citation:
Xiao, J., Q. Zhuang, Beverly E. Law, Dennis D. Baldocchi, Jiquan Chen, Andrew D. Richardson, Jerry M. Melillo, Kenneth J. Davis, David Y. Hollinger, Sonia Wharton, Ram Oren, Asko Noormets, Marc L. Fischer, Shashi B. Verma, David R. Cook, Ge Sun, Steve McNulty, Steven C. Wofsy, Paul V. Bolstad, Sean P. Burns, Peter S. Curtis, Bert G. Drake, Matthias Falk, David R. Foster, Lianhong Gu, Julian L. Hadley, Gabriel G. Katul, Marcy Litvak, Siyan Ma, Timothy A. Martin, Roser Matamala, Tilden P. Meyers, Russell K. Monson, J. William Munger, Walter C. Oechel, U. Kyaw Tha Paw, Hans Peter Schmid, Russell L. Scott, Gregory Starr, Andrew E. Suyker, Margaret S. Torn (2011), Assessing net ecosystem carbon exchange of U.S. terrestrial ecosystems by integrating eddy covariance flux measurements and satellite observations, Agricultural and Forest Meteorology, Volume 151, Issue 1, 15 January 2011, Pages 60-69, ISSN 0168-1923, DOI: 10.1016/j.agrformet.2010.09.002.
Abstract:
The study provides an estimate of net ecosystem carbon exchange (NEE) at high spatial (1 km) and temporal (8-day) resolutions in the US for the period 2001-2006. We find that the U.S. terrestrial carbon sink varied between 0.51 and 0.70 pg C yr-1 over the period.
Nov. 22, 2010
As a product of our NCEAS methane synthesis project, a study focusing on arctic methane bubble emissions was published in Limnol. Oceanogr.: Methods.
Citation:
Anthony, K. M. W., D. A. Vas, L. Brosius, F. S. Chapin III, S. A. Zimov, and Q. Zhuang (2010) Estimating methane emissions from northern lakes using ice bubble surveys, Limnol. Oceanogr.: Methods 8, 592?C609.
Oct. 9, 2010
As a contribution to our NCEAS methane synthesis project, a study on mid-upper tropospheric methane in the high Northern Hemisphere using satellite retrieval, aircraft measurements, and model simulations was just published.
Citation:
Xiong, X., C. D. Barnet, Q. Zhuang, T. Machida, C. Sweeney, and P. K. Patra (2010), Mid-upper tropospheric methane in the high Northern Hemisphere: Spaceborne observations by AIRS, aircraft measurements, and model simulations, J. Geophys. Res., 115, D19309, doi:10.1029/2009JD013796.
Sept. 20, 2010
Our lab just won a NSF CDI type II project entitled "A Paradigm Shift in Ecosystem and Environmental Modeling: An Integrated Stochastic, Deterministic, and Machine Learning Approach".
Abstract:
Prof. Zhuang is Lead Principal Investigator in collaboration with M. Crawford, H. Zhang, D. Xiu, J. Zhang at Purdue and J. Melillo at Marine Biological Laboratory in Woods Hole, MA and J. Reilly at MIT. This project will advance systems modeling approaches by developing a suite of stochastic modeling approaches, coupled with geostatistical and machine learning techniques. The novel developments, together with observed data, will advance ecosystem and environmental sciences through computational thinking.
Aug. 20, 2010
In collaboration with several other institutions, our lab just published a study focusing on carbon balance in the Arctic in recent years at Tellus.
Citation:
McGuire, A.D., D.J. Hayes, D.W. Kicklighter, M. Manizza, Q Zhuang, M. Chen, M. J. Follows, K. R. Gurney, J.W. McClelland, J. M. Melillo, B. J. Peterson, and R. G. Prinn (2010) An analysis of the carbon balance of the Arctic Basin from 1997 to 2006, Tellus, DOI: 10.1111/j.1600-0889.2010.00497.x.
Aug. 10, 2010
In collaboration with Chinese Academy of Sciences, our lab published a study focusing on carbon dynamics on the Tibetan Plateau during the 20th century.
Citation:
Zhuang Q., J. He, Y. Lu, L. Ji, J. Xiao, T. Luo, Carbon dynamics of terrestrial ecosystems on the Tibetan Plateau during the 20th century: an analysis with a process-based biogeochemical mode, Global Ecology and Biogeography,19,5, 649-662,2010. DOI: 10.1111/j.1466-8238.2010.00559.x
June 14, 2010
Congratulations to Xiaoliang Lu, who just published a research article on evaluating evapotranspriation and water-use efficiency of the terrestrial ecosystems in the U.S. with satellite and eddy flux data and modeling approach.
Citation:
Xiaoliang Lu, Qianlai Zhuang, Evaluating evapotranspiration and water-use efficiency of terrestrial ecosystems in the conterminous United States using MODIS and AmeriFlux data, Remote Sensing of Environment, Volume 114, Issue 9, 15 September 2010, Pages 1924-1939, ISSN 0034-4257, DOI: 10.1016/j.rse.2010.04.001
June 8, 2010
Prof. Zhuang has been named a William F. and Patty J. Miller Associate Professor in the College of Science.
Abstract:
In his naming letter, Dr. Jeffrey T. Roberts, the Dean of College of Science at Purdue wrote "...The professorship, which was created through the generosity of Purdue alumni Bill and Patty Miller, recognizes Qianlai's extraordinary accomplishments as a leading researcher in climate change, and his potential for continuing scholarly accomplishments". Congratulations!
May 9, 2010
Our lab just published a study focusing on carbon balance in the Midwest of the U.S. in Mitigation and Adaptation Strategies for Global Change.
Citation:
Lu, Xiaoliang and Qianlai Zhuang (2010), Evaluating climate impacts on carbon balance of the terrestrial ecosystems in the Midwest of the United States with a process-based ecosystem model, Mitigation and Adaptation Strategies for Global Change,15, 5, 467-487,10.1007/s11027-010-9228-z.
Abstract:
We found that, during the 21st century, vegetation and soil carbon fluxes and pools show an increase trend with a great inter-annual variability. The ecosystems serve as a carbon sink under future climate scenarios. This study provides the information of the biomass and NEP at a state- level in the Midwest, which will be valuable for the stakeholders in the region to better manage their land for the purpose of increasing carbon sequestration on the one hand and meeting the increasing demand of biomass on the other.
Apr. 9, 2010
Congratulations to Prof. Zhuang who has been promoted to Associate Professor with tenure at Department of Earth & Atmospheric Sciences and Department of Agronomy at Purdue!
Apr. 9, 2010
Congratulations to Jinyun Tang, who has been awarded Bilsland Dissertation Fellowship for the 2010-2011 academic year!
Feb. 1, 2010
Our lab just published a synthesis paper on estimating gross primary production based on eddy flux measurements in the US.
Citation:
Jingfeng Xiao, Qianlai Zhuang, Beverly E. Law, Jiquan Chen, Dennis D. Baldocchi, David R. Cook, Ram Oren, Andrew D. Richardson, Sonia Wharton, Siyan Ma, Timothy A. Martin, Shashi B. Verma, Andrew E. Suyker, Russell L. Scott, Russell K. Monson, Marcy Litvak, David Y. Hollinger, Ge Sun, Kenneth J. Davis, Paul V. Bolstad, Sean P. Burns, Peter S. Curtis, Bert G. Drake, Matthias Falk, Marc L. Fischer, David R. Foster, Lianhong Gu, Julian L. Hadley, Gabriel G. Katul, Roser Matamala, Steve McNulty, Tilden P. Meyers, J. William Munger, Asko Noormets, Walter C. Oechel, Kyaw Tha Paw U, Hans Peter Schmid, Gregory Starr, Margaret S. Torn, Steven C. Wofsy, A continuous measure of gross primary production for the conterminous United States derived from MODIS and AmeriFlux data,. Remote Sensing of Environment , Volume 114, Issue 3, 15 March 2010, Pages 576-591, ISSN 0034-4257, DOI: 10.1016/j.rse.2009.10.013.
Abstract:
We estimated GPP for each 1 km x 1 km cell across the U.S. for each 8-day interval over the period from February 2000 to December 2006. The estimated GPP for the conterminous US is between 6.91 and 7.33 Pg C yr- 1.