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Browsing International Center for Climate and Global Change Research by Title

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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 ...

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 ...

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 ...

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 ...

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 ...

Toward more realistic projections of soil carbon dynamics by Earth system models 

Luo, Yiqi; Ahlstrom, Anders; Allison, Steven D.; Batjes, Niles H.; Brovkin, Victor; Carvalhais, Nuno; Chappell, Adrian; Ciais, Philippe; Davidson, Eric A.; Finzi, Adrien C.; Georgiou, Katerina; Guenet, Bertrand; Hararuk, Oleksandra; Harden, Jennifer W.; He, Yujie; Hopkins, Francesca; Jiang, Lifen; Koven, Charlie; Jackson, Robert B.; Jones, Chris D.; Lara, Mark J.; Liang, Junyi; McGuire, A. David; Parton, William; Peng, Changhui; Randerson, James T.; Salazar, Alejandro; Sierra, Carlos A.; Smith, Mathew J.; Tian, Hanqin; Todd-Brown, Katherine E.O.; Torn, Margaret; van Groenigen, Kees Jan; Wang, Ying Ping; West, Tristram O.; Wei, Yaxing; Wieder, William R; Xia, Jianyang; Xu, Xia; Xu, Xiaofeng; Zhou, Tao; 0000-0002-1806-4091 (2022-03-03)
Soil carbon (C) is a critical component of Earth system models (ESMs), and its diverse representations are a major source of the large spread across models in the terrestrial C sink from the third to fifth assessment reports ...

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 ...