Global Ecology Group
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About our group

Our research is motivated by the compelling need to understand the impacts of climate change and human activities on the Earth’s biosphere and the feedbacks to the climate. We strive to answer major science questions on global carbon cycle, greenhouse gas emissions, climate-vegetation interactions, ecosystem dynamics, and coupled natural and human systems. We combine terrestrial biosphere modeling, remote sensing, field measurements, upscaling, model-data fusion, and statistical analysis to answer these science questions.

Dr. Jingfeng Xiao (CV in PDF)

(603) 862-1873; Email: j.xiao at




ResearchGate ResearchGate

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Highlights on recent papers:

Lu, W., Xiao, J., Liu, F., Zhang, Y., Liu,C., Lin, G. (2017) Contrasting ecosystem CO2 fluxes of inland and coastal wetlands: A meta-analysis of eddy covariance data. Global Change Biology, 23, 1180-1198, doi: 10.1111/gcb.13424. [PDF]

Liu, Y.*, Xiao, J., Ju, W., Xu, K., Zhou, Y., Zhao, Y. (2016) Recent trends in vegetation greenness in China significantly altered annual evapotranspiration and water yield. Environmental Research Letters, 11, 094010, doi:10.1088/1748-9326/11/9/094010. [PDF]

Xiao, J., Y. Zhou, Y., Zhang, L. (2015) Contributions of natural and human factors to increases in vegetation productivity in China. Ecosphere 6(11):233.

Thorn, A.M.*, Xiao, J., Ollinger, S.V. (2015) Generalization and evaluation of the process-based forest ecosystem model PnET-CN for other biomes. Ecosphere 6(3):43. [PDF]

Xiao, J. et al. (2014) Data-driven diagnostics of terrestrial carbon dynamics over North America. Agricultural and Forest Meteorology, 197, 142-157. [PDF]

Xiao, J., Davis, K.J., Urban, N.M., Keller, K. (2014) Uncertainty in model parameters and regional carbon fluxes: A model-data fusion approach. Agricultural and Forest Meteorology, 189-190, 175-186. [PDF]

Group news:



Jingfeng Xiao attended the 5th Integrated Land Ecosystem-Atmosphere Processes Study (iLEAPS) Science Conference at Oxford, UK and presented our recent work on the constraining of ecosystem carbon uptake using new satellite data observations (J. Xiao and X. Li).

Ms. Xiaojuan Huang (visiting PhD student) and Drs. Haibo Wang and Weizhi Lu (visiting scholars) joined our group and will conduct research in global ecology during their one-year stay. Welcome and have a fruitful year!


Jingfeng Xiao attended the 12th International Congress of Ecology in Beijing, China (August 21-25) and presented our new work on OCO-2 fluoresence (J. Xiao and X. Li).

Jingfeng Xiao attended the 14th United States-China Carbon Consortium (USCCC) annual meeting at Taiyuan, China (August 18-20th). He led a breakout discussion session on a potential synthesis paper and also presented new work on terrestrial photosynthesis.


Jingfeng Xiao serves on a NASA review panel in Washington DC.


Dr. Baolin Xue's paper on global patterns of woody residence time is accepted by Global Biogeochemical Cycles.


Jingfeng Xiao serves on a review comittee of the National Academies of Sciences, Engineering, and Medicine.


Dr. Weizhi Lu's synthesis paper on wetland carbon fluxes is published in Global Change Biology.

Dr. Junmei Tang's paper titled Impacts of land use and socioeconomic patterns on urban heat island is published in International Journal of Remote Sensing.


November 16, 2016 - Dr. Xufeng Wang is returning to China today. Xufeng has been a visiting scholar in our group for one year, and has done nice work on long-term trends in phenology, productivity, and carbon uptake.

November 2, 2016 - Meeting report in Eos: Improving Carbon Cycle Projections for Better Carbon Management

October 10, 2016 - Dr. Li Zhang's paper titled Drought events and their effects on vegetation productivity in China is accepted by Ecosphere today.

September 21-23, 2016 - The 2016 AmeriFlux PI meeting was held at Golden, CO. Jingfeng Xiao served as one of the meeting organizers and also presented results on the contrasting of annual CO2 fluxes between inland and coastal wetlands.

September 23, 2016 - UNH TODAY: Seeing the Data for the Trees: With major grant and innovative techniques, UNH researchers study forest biodiversity and climate change

September 21, 2016 - Rossella's paper titled "Evapotranspiration and water use efficiency in relation to climate and canopy nitrogen in U.S. forests" is accepted by Journal of Geophysical Research: Biogeosciences today. Congratulations! This work is supported by NASA through Terrestrial Ecology and Carbon Cycle Science.

September 7, 2016 - Our paper titled "Recent trends in vegetation greenness in China significantly altered annual evapotranspiration and water yield" (Liu et al.) is published in ERL today.

September 2, 2016 - We are funded by the National Science Foundation (NSF) through the MacroSystems Biology Program to exmaine the influence of biological diversity on land-atmosphere exchange in forests by confronting theory with data ($1,244,070, 01/2017-12/2021, Co-PI, PI Scott V. Ollinger).

More news

Prospective graduate students and postdocs (and visiting scholars):

Our group may have positions open for highly-motivated and productive graduate students or postdocs. Please contact me if you are interested. We also host highly-motivated visiting students or scholars.