B43H:
Progress in Biogeochemical Research of the World's Large Rivers I Posters

Submit an Abstract to this Session



Session ID#: 23503

Session Description:
The world’s large rivers discharge freshwater, dissolved solids, and suspended solids to the sea, playing a key role in the physical, chemical, and biological dynamics of coastal and marine systems. The quantity and quality of riverine outflows can be greatly affected by a number of natural and anthropogenic factors in these drainage basins. Since the beginning of the Anthropocene, the Earth has experienced unprecedented changes in climate, population growth, economic development, land use, and land cover. Large rivers are the messengers of the Anthropocene; Quantifying how the most recent geologic era has modified element fluxes from large rivers at a global scale is crucial. This session aims at bringing together the latest research and observations on material transport and biogeochemical processes along the aquatic continuum from river to estuary/coastal waters. We encourage submissions reporting recent findings on the biogeochemistry of carbon, nutrients, and other chemical elements, including their isotopes.
Primary Convener:  Yi-Jun Xu, Louisiana State University, School of Renewable Natural Resources, Baton Rouge, LA, United States
Conveners:  Laodong Guo, University of Wisconsin-Milwaukee, School of Freshwater Sciences, Milwaukee, United States, Jerome Gaillardet, Institut de Physique du Globe de Paris, Paris, France and Houjie Wang, Ocean University of China, Qingdao, China
Chairs:  Houjie Wang, Ocean University of China, Qingdao, China and Laodong Guo, Univ of Wisconsin-Milwaukee, Milwaukee, WI, United States
OSPA Liaison:  Jerome Gaillardet, Institut de Physique du Globe de Paris, Paris, France
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
1030 Geochemical cycles [GEOCHEMISTRY]
1041 Stable isotope geochemistry [GEOCHEMISTRY]
1806 Chemistry of fresh water [HYDROLOGY]

Abstracts Submitted to this Session:

How Natural is the Dissolved Inorganic Composition of Mississippi River Water? (261141)
Bernhard Peucker-Ehrenbrink1, Stefani T Johnson1, Shelley J. Meaux2, Kristina Brown1, Michael J. Blum2, Mead A Allison3, Janine Halder4, Leonard I. Wassenaar5, Amanda M. Cuesta2, Emily S. Norris2 and Rebecca S. Wang2, (1)Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, MA, United States, (2)Tulane University of Louisiana, New Orleans, LA, United States, (3)Tulane University of Louisiana, New Orleans, United States, (4)IAEA International Atomic Energy Agency, Isotope Hydrology Laboratory, Vienna, Austria, (5)IAEA International Atomic Energy Agency, Vienna, Austria
Tempo-spatial variations of precipitation in the middle Yellow River (Huanghe) Basin: Response to ENSO cycle (213820)
Houjie Wang1, Song Li2, Xiao WU1 and Naishuang Bi1, (1)Ocean University of China, Qingdao, China, (2)Louisiana State University, Baton Rouge, LA, United States
Dissolved Carbon Fluxes During the 2017 Mississippi River Flood (214674)
Jeremy Hans Reiman, Louisiana State University, Baton Rouge, LA, United States and Yi-Jun Xu, Louisiana State University, School of Renewable Natural Resources, Baton Rouge, LA, United States
Floodplain Impact on Riverine Dissolved Carbon Cycling in the Mississippi-Atchafalaya River System (216873)
Emily DelDuco, Louisiana State University, Agricultural Center, Baton Rouge, LA, United States, Yi-Jun Xu, Louisiana State University, School of Renewable Natural Resources, Baton Rouge, LA, United States and Yijun Xu
Increasing Alkalinity Export from Large Russian Arctic Rivers (221604)
Travis Drake, Florida State University, Earth Ocean and Atmospheric Science, Tallahassee, FL, United States, Alexander V Zhulidov, South Russia Centre for Preparation and Implementation of International Projects, Rostov-on-DON, Russia, Tatiana Yu. Gurtovaya, South Russia Centre for Preparation and Implementation of International Projects, Rostov-on-Don, Russia and Robert G Spencer, Florida State University, Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States
The distribution of uranium in different size of suspended sediment in the Yellow River (223501)
Xueyan Jiang, Ocean University of China, Qingdao, China, Qian Liu, George Mason University, Fairfax, United States and Chenqing Yu, Ocean University of China, Marine Chemistry, Qingdao, China
The carbon flux of global large rivers: a re-evaluation of amount and spatial patterns (247553)
Mingxu Li, Northwest A&F University, Yangling, China, Changhui Peng, Hunan Normal University, Changsha, China and Qiuan Zhu, Northwest A&F University, college of forestry, Yangling, China
Dissolved Oxygen Dynamics in Backwaters of North America’s Largest River Swamp (256271)
Skylar Mackenzie Bueche1, Yi-Jun Xu2 and Jeremy Hans Reiman1, (1)Louisiana State University, Baton Rouge, LA, United States, (2)Louisiana State University, School of Renewable Natural Resources, Baton Rouge, LA, United States

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