HOME >> BIOLOGY >> NEWS
Changes in agricultural practices help clean up Lake Erie

CLEVELANDChanges in agricultural practices on farms around the Lake Erie basin have reduced the amount of pollutants in runoff into rivers that feed the lake, according to a landmark study by Case Western Reserve University geologists.

Examining the water quality of the Maumee and Sandusky rivers, Peter Whiting, CWRU associate professor of geological sciences, and Doug Moog, CWRU senior research associate, found that cropland remains the biggest contributor to sediment and pollution that flow into Lake Erie. They reported their findings in the Journal of Environmental Quality.

The geologists examined the water quality of the rivers for the amounts of sediment, phosphorus and nitrogen that were linked to changes in water runoff, climate and agricultural practices. Once they accounted for the amount of runoff, they then considered changes in agricultural practices and climate.

Winter temperatures rose in the Lake Erie Basin during 1976-95, as they have globally. Snowfall and snow cover have decreased by 40 percent, and winter temperatures increased by 4˚F per decade. These climate changes resulted in more runoff from exposed land surfaces during the winter months, and the runoff doubled the amount of sediment and nitrogen flowing into the lake during winter months. In addition, nitrogen levels have increased by as much as 500 percent, because water soaked into bare ground and leached nitrogen from the soil during the winter months, according to the researchers.

During other times of the year, Whiting and Moog noted that changes in agricultural practices resulted in improved water conditions. They found phosphorus levels from fertilizers decreased by more than 50 percent for all seasons and linked the decrease to the amount of land left fallow or in conservation tillage of planting without plowing or with little mulching.

As more land has been left fallow and farmers have adopted more environmentally friendly practices, the amount
'"/>

Contact: Susan Griffith
sbg4@po.cwru.edu
216-368-1004
Case Western Reserve University
15-Apr-2002


Page: 1 2

Related biology news :

1. Changes to insect-seeking calls of horseshoe bats may drive new species formation
2. Changes in shape of single protein plays key role in the spread of cancer cells
3. Changes in arctic ice affect life around the globe
4. Changes in jet stream, storm tracks, linked to prairie drought patterns, study finds
5. Changes in prevalence of mutations associated with HIV treatment failure
6. Changes in rainfall patterns spur plant growth, carbon absorption across U.S.
7. Changes in Lake Erie fish population suggest lakes recovery
8. Changes in Australian ecosystems tied to arrival of exotic animals
9. Changes in North American land use have had major impact on global environment
10. Changes in diet related to prevalence of asthma and allergies
11. Changes for chickens? New hybrid corn helps reduce phosphorus in poultry litter, UD scientists report

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/6/2017)... , April 6, 2017 Forecasts ... ANPR, Document Readers, by End-Use (Transportation & Logistics, Government ... Oil, Gas & Fossil Generation Facility, Nuclear Power), Industrial, ... Other) Are you looking for a definitive ... ...
(Date:4/4/2017)... 4, 2017   EyeLock LLC , a leader ... United States Patent and Trademark Office (USPTO) has issued ... linking of an iris image with a face image ... the company,s 45 th issued patent. ... timely given the multi-modal biometric capabilities that have recently ...
(Date:3/30/2017)... YORK , March 30, 2017 Trends, ... type (physiological and behavioral), by technology (fingerprint, AFIS, iris ... voice recognition, and others), by end use industry (government ... and immigration, financial and banking, and others), and by ... Europe , Asia Pacific , ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... Charlotte, N.C. (PRWEB) , ... October 11, 2017 ... ... ARCS® Foundation President Andi Purple announced Dr. Suneel I. Sheikh, the ... Laboratories ( ASTER Labs ), Inc. has been selected for membership in ...
(Date:10/11/2017)... ... October 11, 2017 , ... Proscia Inc ., ... a Webinar titled, “Pathology is going digital. Is your lab ready?” with Dr. ... best practices and how Proscia improves lab economics and realizes an increase in ...
(Date:10/11/2017)... ... October 11, 2017 , ... A new ... rates in frozen and fresh in vitro fertilization (IVF) transfer cycles. ... to IVF success. , After comparing the results from the fresh and frozen ...
(Date:10/10/2017)... ... October 10, 2017 , ... For the ... won a US2020 STEM Mentoring Award. Representatives of the FirstHand program travelled to ... Experience from US2020. , US2020’s mission is to change the trajectory of STEM ...
Breaking Biology Technology:
Cached News: