Navigation Links
Agriculture is changing the chemistry of the Mississippi River
Date:1/29/2008

New Haven, Conn.Midwestern farming has introduced the equivalent of five Connecticut Rivers into the Mississippi River over the past 50 years and is adding more carbon dioxide annually into its waters, according to a study published in Nature by researchers at Yale and Louisiana State universities.

Its like the discovery of a new large river being piped out of the corn belt, said Pete Raymond, lead author of the study and associate professor of ecosystem ecology at the Yale School of Forestry & Environmental Studies. Agricultural practices have significantly changed the hydrology and chemistry of the Mississippi River.

The researchers tracked changes in the levels of water and bicarbonate, which forms when carbon dioxide in soil water dissolves rock minerals. Bicarbonate plays an important, long-term role in absorbing atmospheric carbon dioxide, a greenhouse gas. Oceans then absorb the excess carbon dioxide and become more acidic in the process. Ocean acidification makes it more difficult for organisms to form hard shells in coral reefs, said R. Eugene Turner, a co-author of the study and a professor at the Coastal Ecology Institute at Louisiana State University.

The researchers concluded that farming practices, such as liming, changes in tile drainage and crop type and rotation, are responsible for the majority of the increase in water and carbon dioxide in the Mississippi River, which is North Americas largest river.

Raymond said that the research team analyzed 100-year-old data on the Mississippi River, warehoused at two New Orleans water treatment plants, along with data on precipitation and water export. A notable finding is that changes in farming practices are more important than changes in precipitation to the increase in water being discharged into the river, he said.

The researchers used their data to demonstrate the effects of excess water on the carbon content of the river, and to argue that nutrients and pollution in the water are altering the chemistry of the Gulf of Mexico.


'/>"/>

Contact: Janet Rettig Emanuel
janet.emanuel@yale.edu
203-432-2157
Yale University
Source:Eurekalert  

Related biology news :

1. Agriculture experts meet in Beijing to examine impacts of food prices and climate change on farmers
2. Emphasizing the precision in precision agriculture
3. Changing environment organizes genetic structure
4. Global deal fuels QUTs world-changing research
5. Changing the global dietary environment
6. Story ideas from the Journal of Biological Chemistry
7. Biocapture surfaces produced for study of brain chemistry
8. Story ideas from the Journal of Biological Chemistry
9. Going live with click chemistry
10. Biogeochemistry -- A window into the Earths ecological health
11. K-State chemistry professor to receive Masao Horiba award
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Agriculture is changing the chemistry of the Mississippi River
(Date:4/5/2017)... , April 5, 2017 Today ... announcing that the server component of the HYPR platform ... for providing the end-to-end security architecture that empowers biometric ... HYPR has already secured over 15 million users ... including manufacturers of connected home product suites and physical ...
(Date:3/30/2017)... , March 30, 2017  On April 6-7, ... Hack the Genome hackathon at Microsoft,s headquarters ... two-day competition will focus on developing health and wellness ... Hack the Genome is the first ... tremendous. The world,s largest companies in the genomics, tech ...
(Date:3/28/2017)... March 28, 2017 The report ... (Camera, Monitors, Servers, Storage Devices), Software (Video Analytics, VMS), ... - Global Forecast to 2022", published by MarketsandMarkets, the ... and is projected to reach USD 75.64 Billion by ... 2022. The base year considered for the study is ...
Breaking Biology News(10 mins):
(Date:4/20/2017)... ... April 20, 2017 , ... Husson University will be ... growing body of knowledge during its Eighth Annual Research and Scholarship Day ... Darling Atrium. During the event, undergraduates, graduate students, and faculty members from all ...
(Date:4/20/2017)... ... April 20, 2017 , ... Parallel6™ , the leader in mClinical™ ... that they were named one of the 2017 Top 10 eClinical Trial Management ... the pharmaceutical industry. , “We take pride in honoring Parallel6 as one of the ...
(Date:4/20/2017)... -- For today, Stock-Callers.com redirects investors, attention to ... clinical research aimed at treating diseases and medical conditions. Under ... Inc. (NASDAQ: KERX), Kite Pharma Inc. (NASDAQ: KITE), and ZIOPHARM ... our complimentary research reports on these stocks now at: ... http://stock-callers.com/registration ...
(Date:4/19/2017)... ... April 18, 2017 , ... Optofluidics today announced ... comes after the company changed focus to making analytical tools for biopharmaceutical quality ... new technology,” says CEO Robert Hart. Founders Bernardo Cordovez, Robert Hart and David ...
Breaking Biology Technology: