This Is AuburnAUrora

International Center for Climate and Global Change Research

Recent Submissions

Global Pyrogenic Carbon Production During Recent Decades Has Created the Potential for a Large, Long-Term Sink of Atmospheric CO2 

Wei, Xinyuan; Hayes, Daniel J.; Fraver, Shawn; Chen, Guangsheng; 0000-0001-6544-5287 (2020-05-26)
Fires play an important role in the terrestrial biosphere carbon cycle, not only through direct carbon release but also contributing to a potential long-term storage as pyrogenic carbon (PyC). PyC is formed through fires, ...

Vegetation Functional Properties Determine Uncertainty of Simulated Ecosystem Productivity: A Traceability Analysis in the East Asian Monsoon Region 

Cui, Erqian; Huang, Kun; Arain, Muhammad Altaf; Fisher, Joshua B.; Huntzinger, Deborah N.; Ito, Akihiko; Luo, Yiqi; Jain, Atul K.; Mao, Jiafu; Michalak, Anna M.; Niu, Shuli; Parazoo, Nicholas C.; Peng, Changhui; Peng, Shushi; Poulter, Benjamin; Ricciuto, Daniel M.; Schaefer, Kevin M.; Schwalm, Christoper R.; Shi, Xiaoying; Tian, Hanqin; Wang, Weile; Wang, Jinsong; Wei, Yaxing; Yan, Enrong; Yan, Liming; Zeng, Ning; Zhu, Qiuan; Xia, Jianyang; 0000-0002-1806-4091 (2020-04-02)
Global and regional projections of climate change by Earth system models are limited by their uncertain estimates of terrestrial ecosystem productivity. At the middle to low latitudes, the East Asian monsoon region has ...

Century-long increasing trend and variability of dissolved organic carbon export from the Mississippi River basin driven by natural and anthropogenic forcing 

Ren, Wei; Tian, Hanqin; Cai, Wei-Jun; Lohrenz, Steven E.; Hopkinson, Charles S; Huang, Wei-Jen; Yang, Jia; Tao, Bo; Pan, Shufen; He, Ruoying; 0000-0002-1806-4091; 0000-0001-7920-1427 (2020-04-02)
There has been considerable debate as to how natural forcing and anthropogenic activities alter the timing and magnitude of the delivery of dissolved organic carbon (DOC) to the coastal ocean, which has ramifications for ...

Methane emissions from global rice fields: Magnitude, spatiotemporal patterns, and environmental controls 

Zhang, Bowen; Tian, Hanqin; Ren, Wei; Tao, Bo; Lu, Chaoqun; Yang, Jia; Banger, Kamaljit; Pan, Shufen; 0000-0002-1806-4091; 0000-0001-7920-1427 (2020-04-02)
Given the importance of the potential positive feedback between methane (CH4) emissions and climate change, it is critical to accurately estimate the magnitude and spatiotemporal patterns of CH4 emissions from global rice ...

Global Nitrous Oxide Emissions From Pasturelands and Rangelands: Magnitude, Spatiotemporal Patterns, and Attribution 

Dangal, Shree R. S.; Tian, Hanqin; Xu, Rongting; Chang, Jinfeng; Canadell, Josep G.; Ciais, Philippe; Pan, Shufen; Yang, Jia; Zhang, Bowen; 0000-0002-1806-4091; 0000-0001-7920-1427 (2020-04-01)
The application of manure and mineral nitrogen (N) fertilizer, and livestock excreta deposition are the main drivers of nitrous oxide (N2O) emissions in agricultural systems. However, the magnitude and spatiotemporal ...

Long-term trends in evapotranspiration and runoff over the drainage basins of the Gulf of Mexico during 19012008 

Liu, Mingliang; Tian, Hanqin; Yang, Qichun; Yang, Jia; Song, Xia; Lohren, Steven E.; Cai, Wei-Jun; 0000-0002-1806-4091 (2020-04-01)
The Gulf of Mexico (GOM) is facing large pressures from environmental changes since the beginning of the last century. However, the magnitude and long-term trend of total water discharge to the GOM and the underlying ...

Increased light-use efficiency in northern terrestrial ecosystems indicated by CO2 and greening observations 

Thomas, Rebecca T.; Prentice, Lain Colin; Graven, Heather; Ciais, Philippe; Fisher, Joshua B; Hayes, Daniel J; Huang, Maoyi; Huntzinger, Deborah N.; Ito, Akihiko; Jain, Atul; Mao, Jiafu; Michalak, Anna M.; Peng, Shushi; Poulter, Benjamin; Ricciuto, Daniel M.; Shi, Xiaoying; Schwalm, Christopher; Tian, Hanqin; Zeng, Ning; 0000-0002-1806-4091 (2020-04-01)
Observations show an increasing amplitude in the seasonal cycle of CO2 (ASC) north of 45 degrees N of 56 +/- 9.8% over the last 50 years and an increase in vegetation greenness of 7.5-15% in high northern latitudes since ...

Fitness implications of seasonal climate variation in Columbian ground squirrels 

Dobson, FS; Lane, JE; Low, M; Murie, JO (2020-04-01)
The influence of climate change on the fitness of wild populations is often studied in the context of the spring onset of the reproductive season. This focus is relevant for climate influences on reproductive success, but ...

Development of a REgion‐Specific Ecosystem Feedback Fire (RESFire) Model in the Community Earth System Model 

Zou, Yufei; Wang, Yuhang; Ke, Ziming; Tian, Hanqin; Yang, Jia; Liu, Yongqiang; 0000-0002-1806-4091 (2020-04-01)
Fires play a critical role in modulating regional and global climate through disturbances on meteorological, biogeochemical, and hydrological processes, while fires are strongly affected by climate, terrestrial ecosystems, ...

Severe Long-Lasting Drought Accelerated Carbon Depletion in the Mongolian Plateau 

Lu, Chaoqun; Tian, Hanqin; Yu, Zhen; Pan, Shufen; Dangal, Shree; Zhang, Bowen; Yang, Jin; Pederson, Neil; Hessl, Amy; 0000-0002-1806-4091; 0000-0001-7920-1427; 0000-0001-9529-8206; 0000-0002-8370-0509; 0000-0003-2019-9603 (2020-02-25)
Paleoclimate records identified a severe drought lasting approximately a decade on the Mongolian Plateau during the 2000s, the severity of which was only exceeded by a single drought during the last two millennia. Under ...

Methane exchange between marshland and the atmosphere over China during 1949-2008 

Xu, Xiaofeng; Tian, Hanqin; 0000-0002-1806-4091; 0000-0002-6553-6514 (2020-02-25)
We used a process-based ecosystem model to examine methane (CH4) fluxes in the marshland across China as a result of multifactor global changes during 1949–2008. Our simulated results show a significant declining rate of ...