Curriculum Vitae
Education
- 2015 - 2019, Ph.D. in Earth System Science, Auburn University (AU), US
- 2011 - 2014, M.S. in Geology, University of Chinese Academy of Sciences (UCAS), China
- 2007 - 2011, B.S. in Geological Engineering, China University of Mining and Technology (CUMT), China
Research experience
- August 2023 - Present: Air Quality and GHG Data Scientist
- Washington State Department of Ecology
- March 2022 - Present: Emissions Inventory Specialist
- Washington State Department of Ecology
- March 2022 - Sept 2022: Research Associate
- The Still Lab, Oregon State University (OSU)
- March 2021 - March 2022: Postdoctoral Researcher
- The Still Lab, Oregon State University (OSU)
- June 2021 - Sept 2022: Affiliate Postdoctoral Scholar
- Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory (LBNL)
- May 2019 - Jan 2021: Postdoctoral Fellow
- GIS and Remote Sensing Laboratory, AU
- Spring 2015 - Spring 2019: Research Assistant
- International Center for Climate and Global Change Climate, AU
- Fall 2011 - Fall 2014: Research Assistant
- Key Laboratory of Computational Geodynamics, Chinese Academy of Sciences, UCAS
Teaching experience
Selected Publications
Magnitude and Uncertainty of Nitrous Oxide Emissions From North America Based on Bottom-Up and Top-Down Approaches: Informing Future Research and National Inventories
Xu, R., Tian, H., Pan, N., Thompson, R. L., Canadell, J. G., Davidson, E. A., ... & Zhou, F. (2021). Magnitude and uncertainty of nitrous oxide emissions from North America based on bottom‐up and top‐down approaches: Informing future research and national inventories. Geophysical Research Letters, e2021GL095264.
Satellite-detected ammonia changes in the United States: natural or anthropogenic impacts
He, Y., Xu, R., Prior, S. A., Yang, D., Yang, A., & Chen, J. (2021). Satellite-detected ammonia changes in the United States: natural or anthropogenic impacts. Science of the Total Environment, 789, 147899.
Global N2O emissions from cropland driven by nitrogen addition and environmental factors: comparison and uncertainty analysis
Xu, R., Tian, H., Pan, S., Prior, S. A., Feng, Y., & Dangal, S. R. S. (2020). Global N2O emissions from cropland driven by nitrogen addition and environmental factors: comparison and uncertainty analysis. Global Biogeochemical Cycles, 34, e2020GB006698.
A comprehensive quantification of global nitrous oxide sources and sinks
Tian, H., Xu, R., Canadell, J.G. et al. A comprehensive quantification of global nitrous oxide sources and sinks. Nature 586, 248–256 (2020).
Satellite observations of forest resilience to hurricanes along the northern Gulf of Mexico
Gang, C., Pan, S., Tian, H., Wang, Z., Xu, R., Bian, Z., Pan, N., Yao, Y. and Shi, H., 2020. Satellite observations of forest resilience to hurricanes along the northern Gulf of Mexico. Forest Ecology and Management, 472, p.118243.
Long-term trajectory of nitrogen loading and delivery from Mississippi River basin to the Gulf of Mexico
Tian, H., Xu, R., Pan, S., Yao, Y., Bian, Z., Cai, W.J., et al. (2020). Long-term trajectory of nitrogen loading and delivery from Mississippi River basin to the Gulf of Mexico. Global Biogeochemical Cycles, 34,e2019GB006475.
Global soil nitrous oxide emissions since the preindustrial era estimated by an ensemble of terrestrial biosphere models: Magnitude, attribution, and uncertainty
Tian, H., Yang, J., Xu, R., Lu, C., Canadell, J.G., Davidson, E.A., Jackson, R.B., Arneth, A., Chang, J., Ciais, P. and Gerber, S., 2019. Global soil nitrous oxide emissions since the preindustrial era estimated by an ensemble of terrestrial biosphere models: Magnitude, attribution, and uncertainty. Global Change Biology, 25(2), pp.640-659.
Increased nitrogen enrichment and shifted patterns in the world’s grassland: 1860–2016
Xu, R., Tian, H., Pan, S., Dangal, S.R., Chen, J., Chang, J., Lu, Y., Skiba, U.M., Tubiello, F.N. and Zhang, B., 2019. Increased nitrogen enrichment and shifted patterns in the world's grassland: 1860–2016. Earth System Science Data, 11(1), pp.175-187.
Global ammonia emissions from synthetic nitrogen fertilizer applications in agricultural systems: Empirical and process‐based estimates and uncertainty
Xu, R., Tian, H., Pan, S., Prior, S.A., Feng, Y., Batchelor, W.D., Chen, J. and Yang, J., 2019. Global ammonia emissions from synthetic nitrogen fertilizer applications in agricultural systems: Empirical and process‐based estimates and uncertainty. Global Change Biology, 25(1), pp.314-326.
Half‐Century Ammonia Emissions From Agricultural Systems in Southern Asia: Magnitude, Spatiotemporal Patterns, and Implications for Human Health
Xu, R.T., Pan, S.F., Chen, J., Chen, G.S., Yang, J., Dangal, S.R.S., Shepard, J.P. and Tian, H.Q., 2018. Half‐Century Ammonia Emissions From Agricultural Systems in Southern Asia: Magnitude, Spatiotemporal Patterns, and Implications for Human Health. GeoHealth, 2(1), pp.40-53.
Preindustrial nitrous oxide emissions from the land biosphere estimated by using a global biogeochemistry model
Xu, R., Tian, H., Lu, C., Pan, S., Chen, J., Yang, J. and Zhang, B., 2017. Preindustrial nitrous oxide emissions from the land biosphere estimated by using a global biogeochemistry model. Climate of the Past, 13(7), pp.977-990.
Talks and posters
Spatial distribution of C3 and C4 vegetation from 2000 to 2019 in the contiguous US
Talk at AGU Fall Meeting 2021, New Orleans, Louisiana
Managing agricultural nitrogen loss to restore air and water quality in the United States
Talk at AGU Fall Meeting 2019, Virtual
Nitrous oxide emission from North America based on bottom-up and top-down approaches: trends, drivers, and comparison
Talk at AGU Fall Meeting 2019, San Francisco, California
Global nitrous oxide emissions from streams and rivers: A process-based modeling study
Talk at AGU Fall Meeting 2018, Washington, DC
Global soil N2O emissions since the pre-industrial era estimated by an ensemble of Terrestrial Biosphere Models: Magnitude, attribution and uncertainty
Talk at AGU Fall Meeting 2018, Washington, DC
Quantifying and predicting historical and future patterns of carbon fluxes from the North American Continent to Ocean
Talk at AGU Fall Meeting 2017, New Orleans, Louisiana
Impacts of climate variability and change on crop yield in sub-Sahara Africa
Talk at AGU Fall Meeting 2017, New Orleans, Louisiana
Nitrogen delivery from the Mississippi-Atchafalaya River Basin to the Gulf of Mexico: magnitude, attribution, and uncertainty
Talk at AGU Fall Meeting 2017, New Orleans, Louisiana
Largely Increased Nitrous Oxide Emission from Global Livestock Sector during 1860-2014: A geospatial-temporal analysis
Poster at AGU Fall Meeting 2017, New Orleans, Louisiana
Nitrous oxide emissions from grassland ecosystems: Magnitude, spatio-temporal pattern and attribution
Talk at AGU Fall Meeting 2017, New Orleans, Louisiana
Impacts of multiple global environmental changes on African crop yield and water use efficiency: Implications to food and water security
Talk at AGU Fall Meeting 2016, San Francisco, California
Indirect Nitrous Oxide Emissions from Major Rivers in the World: Integration of a Process-based Model with Observational Data
Talk at AGU Fall Meeting 2016, San Francisco, California
Global Nitrous Oxide Emissions from Agricultural Soils: Magnitude and Uncertainties Associated with Input Data and Model Parameters
Poster at AGU Fall Meeting 2016, San Francisco, California
Estimation of Pre-industrial Nitrous Oxide Emission from the Terrestrial Biosphere
Poster at AGU Fall Meeting 2015, San Francisco, California
Historical Pattern and Future Trajectories of Terrestrial N2O Emission driven by Multi-factor Global Changes
Talk at AGU Fall Meeting 2015, San Francisco, California
The mechanisms of gas generation during coal deformation: Preliminary observations
Poster at 2nd World Congress on Petrochemistry and Chemical Engineering 2014, Las Vegas, Nevada
Skills
- Remote sensing and GIS
- Proficient in ArcGIS, ERDAS, ArcPy, and other programs in processing and analyzing spatial data
- Model development
- improving spatially-explicit land ecosystem models (DLEM and ELM-FATES)
- incorporating the Bi-directional NH3 exchange module into DLEM
- Programming
- Proficient in C++, R, and Python
Service
- Scientific Conference
- OSPA Liaison for American Geophysical Union Fall Meeting sessions (B054) entitled “Regional Budgets, Trends, and Drivers of Major Greenhouse Gases (N2O, CH4, and CO2) I & II”, San Francisco, CA, December 2020
- OSPA Liaison for American Geophysical Union Fall Meeting sessions (B34D & B13L) entitled “Regional Budgets, Trends, and Drivers of Major Greenhouse Gases (N2O, CH4, and CO2) I & II”, San Francisco, CA, December 2019.
- Guest Editor, 2021-2023
- Sustainability; Special Issue “Multi-scale Nitrogen Emission and its Impact”
- Journal Reviewer
- One Earth
- Geoscientific Model Development
- Earth System Science Data
- Global Change Biology
- Environmental Research Letters
- Atmospheric Environment
- Agriculture, Ecosystems, & Environment
- Journal of Environmental Quality
- Journal of Geophysical Research: Biogeosciences
- Journal of Environmental Sciences
- Soil & Tillage Research
- Ecosystem Health and Sustainability
- Science of the Total Environment
- Sustainability
- Agricultural and Forest Meteorology
- Resources, Conservation & Recycling
- Community
- Serve as a volunteer in the third annual Spring Fling 2015 hosted by the School of Forestry and Wildlife Sciences