Navigation Links
Melting snow provides clues for acidification
Date:2/15/2008

MADISON, WI, February 11, 2008 -- In forests of the northeastern United States, sulfate and nitrate are the dominant dissolved forms of sulfur and nitrogen in precipitation. In winter, these acidic agents accumulate in the snowpack and are released to groundwater and streams over a short period of time during spring snowmelt. This pulsed release of sulfate and nitrate in snowmelt can cause episodic acidification in poorly buffered soils, ultimately threatening the health of acid-sensitive biota.

There have been recent studies showing that biological cycling of sulfur and nitrogen persists in cold weather, despite below freezing air temperatures. Much of this activity occurs in soils, where an insulating snow layer keeps soil temperatures warm enough for a range of biological processes. Despite the growing awareness of winters role in sulfur and nitrogen cycling, many questions remain unanswered. In particular, there is much uncertainty about how sulfate and nitrate are retained or transformed in forest soils during cold weather.

In the November-December 2007 issue of the Soil Science Society of America Journal (SSSAJ), scientists from the U.S. Forest Service, SUNY-ESF, University of Calgary, and Cary Institute of Ecosystem Studies tracked the movement of sulfate and nitrate deposited in snow. A solution containing isotopically enriched sulfate and nitrate was sprayed on the surface of the snowpack during mid winter. The isotopic values of the labeled sulfate and nitrate were well above background levels and served as a tracer to follow the movement and transformation of these compounds in the ecosystem.

The researchers found that almost all of the labeled sulfate and nitrate deposited on the surface of the snow was recovered in snowmelt water, indicating that there were no significant transformations of sulfate and nitrate in the snowpack. In contrast, about half of the sulfate and nitrate was retained or transformed in the forest flo
'/>"/>

Contact: Sara Uttech
suttech@soils.org
608-268-4948
Soil Science Society of America
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Investigational New Drug Application for Fat Melting Injections Cleared by the FDA
2. Non-Invasive Fat-Melting Procedures - Hype or Reality?
3. Study provides hope that some transplant patients could live free of antirejection drugs
4. Study provides hope that some transplant patients could live free of anti-rejection drugs
5. USAID Provides Additional Wildfire Assistance to Greece
6. LifeMasters Provides Tips for Maintaining a Healthy Blood Cholesterol Level
7. New knock-out gene model provides molecular clues to breast cancer
8. PreMD Provides Update on 510(k) Application for PREVU(x) POC
9. SIV infection of natural hosts provides new insights into HIV disease complexity
10. Microarray provides 3 genomic guides to breast cancer treatment decisions
11. Access Innovations Provides Support Services for Agis Network
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/22/2014)... 2014 Explorys, the leader in big ... leadership team: Greg Yarrington as Vice President of Operations, ... Wells as Vice President of Solutions. These new leaders ... jobs in 2015 to support client demand for the ... offerings, and growth of its partner network. , ...
(Date:12/22/2014)... 2014 Pasadena sleep apnea ... sleep apnea. Drowsy drivers are 15 times more likely ... well-rested, and some experts believe that sleep-deprived drivers may ... drivers. Unfortunately, millions of Americans may be sleep-deprived without ... Sleep Medicine, about 18 million Americans have sleep apnea, ...
(Date:12/22/2014)... (PRWEB) December 22, 2014 Christmas is days ... has a fast and easy solution that will please: the ... can be purchased from from $25 up to $350," says ... 100% customer satisfaction and a wide array of skin care ... fees and no expiration dates. , Gift delivery past ...
(Date:12/22/2014)... Washington, DC (PRWEB) December 22, 2014 ... Nursing Leadership Conference, next month in San ... strategies to address dynamics that often stand in ... authority, and competition. , This premier faculty ... Center for Transformational Leadership, whose mission is to ...
(Date:12/21/2014)... 2014 BellasDress.com offers a wide range ... Today, it announces its BellasDress Christmas Sale , ... online store. , BellasDress is a famous online supplier ... fans through a series of promotions. The dress experts ... , “We are proud of offering high quality ...
Breaking Medicine News(10 mins):Health News:Explorys Continues to Experience Rapid Growth, Adds Three Healthcare IT Executives to Its Leadership Team 2Health News:Explorys Continues to Experience Rapid Growth, Adds Three Healthcare IT Executives to Its Leadership Team 3Health News:Pasadena Dentist, Dr. Marine Martirosyan, Now Offers Consultations for Sleep Apnea 2Health News:2015 NLN Leadership Conference February 5-7 San Antonio 2Health News:2015 NLN Leadership Conference February 5-7 San Antonio 3Health News:BellasDress.com Announces its BellasDress Christmas Sale 2
... LYMAN, S.C., Sept. 11 Southern Home Medical,Equipment, Inc. ... the month of August 2008 compared to July 2008., ... stated, "On the heels of,reporting record sales in the ... on a path of strong sales momentum. Encore Medical ...
... against women in a family also has serious consequences ... sling Monemi from Uppsala University has studied women and ... other things, that children whose mothers are exposed to ... other children. , Kajsa sling Monemi, paediatrician, the ...
... - For Non-US Healthcare Media, - Global ... Improved Survival Outcomes With Vetmedin(R) (pimobendan), Veterinarians and ... promise of an extended happy life together for millions ... that dogs,suffering from the most common type of heart ...
... Residents to Eat Right, Move More ... and Milk Their Diets, BOSTON, Sept. 11 ... fad diets -- which seem to go in and out of,fashion like shoulder ... -- including 51 percent of Massachusetts,residents -- remain overweight or obese., A ...
... 11 Oculus Innovative,Sciences, Inc. (Nasdaq: OCLS ), ... of products based upon the Microcyn(R),Technology platform, today announced ... exclusive interview on WallSt.net,s 3-Minute Press Show., The ... the,significance of the company,s latest press release., ...
... Plastic surgeon offers the surprise scoop, NEW ... time and an,active lifestyle can impact a person,s ... million Americans turned to cosmetic procedures last,year to ... Shirley Madhere, M.D., says you can improve your ...
Cached Medicine News:Health News:Southern Home Medical Announces Revenues Up 172% for the Month of August 2Health News:Landmark Research Heralds New Era in Dog Heart Treatment and Longer Life for Dogs 2Health News:Landmark Research Heralds New Era in Dog Heart Treatment and Longer Life for Dogs 3Health News:Landmark Research Heralds New Era in Dog Heart Treatment and Longer Life for Dogs 4Health News:Message to Boston Residents: Forgo Fad Dieting and Join the Campaign for Healthy Weight 2Health News:Message to Boston Residents: Forgo Fad Dieting and Join the Campaign for Healthy Weight 3Health News:Message to Boston Residents: Forgo Fad Dieting and Join the Campaign for Healthy Weight 4Health News:[video] Hojabr Alimi, CEO of Oculus Innovative Sciences, Inc. Discusses Reduction of Planned Expenses on WallSt.net's 3-Minute Press Show 2Health News:Insider Secrets for Beautiful Skin 2
(Date:12/22/2014)... 22, 2014 Cyberonics, Inc. (NASDAQ: CYBX ... and management of epilepsy, today announced it will participate in ... Wednesday, January 14, 2015, in San Francisco ... Chief Executive Officer, will speak at 11:00 AM Pacific Time.  ... by clicking on the Investor Relations link on the Cyberonics ...
(Date:12/22/2014)... , Dec. 22, 2014  Pfenex Inc. (NYSE MKT: ... anthrax vaccine, has been filed and is now open ... by the Department of Health and Human Services (HHS), ... "We are extremely pleased to have the ... This represents a significant milestone in our company,s partnership ...
(Date:12/19/2014)... Calif. , Dec. 19, 2014  Newport ... that Siddhartha Kadia, Ph.D. has joined the company,s ... Chief Executive Officer and a director of Evans ... laboratory testing, evaluation and analytical services to companies ... Prior to joining Evans Analytical Group, Dr. ...
Breaking Medicine Technology:Pfenex Announces Active IND and Additional BARDA Funding for Recombinant Anthrax Vaccine Program, Px563L 2Pfenex Announces Active IND and Additional BARDA Funding for Recombinant Anthrax Vaccine Program, Px563L 3Siddhartha Kadia, Ph.D. Joins Board of Directors of Newport Corporation 2
... MADISON, N.J. and CYPRESS, Calif., April 11, 2012  Quest ... provider of diagnostic testing, information and services, today announced ... granted 510(k) clearance to its Simplexa C. difficile ... The test, from the company,s Focus ...
... MIAMI, April 11, 2012  One of the responsibilities of ... and dogs against heartworm disease . While many ... understand how preventative heartworm treatments actually work. ... provides the following five tips and safety measures ...
Cached Medicine Technology:FDA Clears the Quest Diagnostics Simplexa® C. difficile Molecular Test 2FDA Clears the Quest Diagnostics Simplexa® C. difficile Molecular Test 3petMD.com Celebrates Heartworm Awareness Month with Five Heartworm Prevention Tips for Pet Owners 2petMD.com Celebrates Heartworm Awareness Month with Five Heartworm Prevention Tips for Pet Owners 3
... RELISA ENA Multiparameter Kit is ... for six of the most ... a unique quality control system. ... Check) well in each strip ...
... RELISA ENA assays were designed with the ... clinician in the diagnosis of autoimmune disease. ... disease and 1,000 normal individuals were tested ... Test System. Immuno Concepts compared the results ...
... functional human C1q coated in the solid phase ... stage, CIC in the diluted patient samples and ... into the C1q coated assay wells. After incubation, ... and a ready to use conjugate (goat anti-human ...
... CIC are formed as a host ... cleared by phagocytosis. If not cleared, CIC ... inflammatory response. CIC are increased in Systemic ... may be involved in other autoimmune disorders ...
Medicine Products: