Navigation Links
LSU, Yale team study agricultural impact on Mississippi River
Date:1/23/2008

BATON ROUGE According to a study published in Nature by researchers at LSU and Yale University, farming has significantly changed the hydrology and chemistry of the Mississippi River, injecting more carbon dioxide into the river and raising river discharge during the past 50 years.

LSU Professor R. Eugene Turner and graduate student Whitney Broussard, along with their colleagues at Yale, tracked changes in the discharge of water and the concentration of bicarbonate, which forms when carbon dioxide in soil water dissolves rock minerals. Bicarbonate in rivers plays an important, long-term role in absorbing atmospheric carbon dioxide, a greenhouse gas. Oceans then absorb this carbon dioxide, but become more acidic in the process, making it more difficult for organisms to form hard shells a necessary function in coral reefs, for example.

Researchers concluded that liming and farming practices, such as changes in tile drainage, tillage practices and crop type, are most likely responsible for the majority of the increase in water and carbon in the Mississippi River, North Americas largest river.

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.

The research team analyzed 100-year-old data on the Mississippi River warehoused at two New Orleans water treatment plants, and combined it with data on precipitation and water export.

The water quality information we used has been sitting idle for over 50 years in an attic in New Orleans, waiting to be discovered, said Broussard, who is pursuing a doctoral degree in coastal ecology at LSU. I felt like a treasure-hunter when we opened those boxes in that 100-plus degree attic to find those data logs. You never know where your research will take you if youre open to suggestion and serendipity. Turner, distinguished professor of coastal ecology, added, and [where it will take you] if you have the benefits of long-term collaborations of trusting and high-quality academic research groups.

The research team used the data to demonstrate the effects of this excess water on the carbon content of the river, and argue that the additional water in the river is altering the chemistry of the Gulf of Mexico as by increasing the amount of nutrients and pollution the river transports to the Gulf.

Were learning more and more about the far-reaching effects of American agriculture on rivers and lakes. This also means that the agricultural community has an incredible opportunity to influence the natural environment in a positive way, more than any other contemporary enterprise, said Broussard. If we want to clean the water, we have to steward the land with right agriculture.


'/>"/>

Contact: R. Eugene Turner
euturne@lsu.edu
225-578-6454
Louisiana State University
Source:Eurekalert

Related biology news :

1. Diet and lifestyle critical to recovery, says study
2. Scientists study the link between childrens nutrition and adult diseases
3. New Argonne study may shed light on protein-drug interactions
4. Sea otter study reveals striking variability in diets and feeding strategies
5. Study: weight-loss tips differ in African-American, mainstream magazines
6. Study helps explain how allergic reactions are triggered
7. Selective restraints and reduced medication could reduce nursing home falls says 4-year study
8. Study locates cholesterol genes; finds surprises about good, bad cholesterol
9. Study suggests genetic connection between short stature and arthritis
10. Radioactive understudy may aid medical imaging, drug development
11. Surprise -- cholesterol may actually pose benefits, study shows
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/2/2016)... , Feb. 2, 2016 Technology Enhancements Accelerate ... an analysis of the digital and computed radiography markets ... , and Indonesia (TIM). ... and market size, as well as regional market drivers ... and discusses market penetration and market attractiveness, both for ...
(Date:2/1/2016)... Feb. 1, 2016  Wocket® smart wallet ( www.wocketwallet.com ) announces the ... Joey Fatone . Las Vegas , where ... --> Las Vegas , where Joey appeared at ... The new video ad was filmed at the Consumer Electronics Show (CES2016) ... Wocket booth to meet and greet fans. --> ...
(Date:1/22/2016)... , January 22, 2016 /PRNewswire/ ... announced the addition of the  "Global ... their offering. --> http://www.researchandmarkets.com/research/4lmf2s/global_behavioral ... the  "Global Behavioral Biometric Market 2016-2020" ... Research and Markets ( http://www.researchandmarkets.com/research/4lmf2s/global_behavioral ) ...
Breaking Biology News(10 mins):
(Date:2/3/2016)... Ascendis Pharma A/S (Nasdaq: ASND ), ... TransCon technology to address significant unmet medical needs, today ... Leerink Partners Global Healthcare Conference Location: , Waldorf ... 2016 Time:  , 11:55am EST www.ascendispharma.com ... An audio webcast of this event will be posted ...
(Date:2/3/2016)... 3, 2016 New Jersey Health Foundation (NJHF) ... million for researchers in New Jersey ... that demonstrates exciting potential.   James ... the New Jersey Health Foundation Research Grant Program ... educational institutions— Princeton University, Rutgers University, Rowan University ...
(Date:2/3/2016)... ... February 03, 2016 , ... ProMIS Neurosciences is currently ... specific to misfolded, propagating strains of Amyloid beta involved in Alzheimer’s disease. The ... Alzheimer’s. , Following on from the first misfolded Amyloid beta target announced on ...
(Date:2/3/2016)... ... 2016 , ... Resilinc released online today its ... 750 unique supply chain notifications and alerts generated by its EventWatch ® ... management practitioners subscribe to the EventWatch service to receive early warnings and analysis ...
Breaking Biology Technology: