HOME >> BIOLOGY >> NEWS
Acid rain revisited: ESA releases report on the ecological response to acid deposition

Congress will soon give careful consideration to renewal of the Clean Air Act and its amendments. In anticipation of this event, a group of scientific experts met last year to discuss their research of acid deposition, often called acid rain. The results of this meeting have been summarized and are now available in a new report from the Ecological Society of America entitled, "Acid Deposition: The Ecological Response."

The group of experts was composed of 40 of the nation's top ecological researchers. They met in March 1999 with three specific goals in mind: to evaluate the long term trends emerging from research data on ecosystem response to acid deposition; to examine whether changes have occurred in the ecological damage caused by acid deposition, and to compare those changes to observations and projections of the 1990 National Acid Precipitation Assessment Program (NAPAP) Report. During this same year, the Clean Air Act Amendments (CAAA) were passed to reduce the adverse effects of acid deposition through phased reductions of annual emissions of its precursors, sulfur dioxide (SO2) and nitrogen oxides (NOx). The scientists also wanted to ascertain whether ecosystems were experiencing any kind of recovery from previous acid deposition.

The most important conclusions drawn from the workshop regard regional differences in both deposition levels and recovery rates. In the Midwest and Northeast, the scientists agreed, emission reductions of sulfur dioxide correspond to decreases in the fluxes of sulfate in both precipitation and surface waters. But in some regions and ecosystems, these reductions may not have resulted in ecosystem recovery.

Several factors may be limiting this recovery. First, acid deposition can deplete base cations from soils, such as calcium and magnesium, that are essential for plant growth. Besides being essential for plants these elements also neutralize further acid inputs.

Second, nitrogen deposition may also be li
'"/>

Contact: Alison Gillespie
alison@esa.org
202-833-8773 ext. 21
Ecological Society of America
11-May-2000


Page: 1 2 3

Related biology news :

1. 5AM Solutions releases Microarray Enterprise Manage(TM) Software
2. Joslin Diabetes Center releases new low impact exercise video
3. The American Academy of Microbiology releases report
4. Academy Harbor Consortium releases letter on mercury to President Bush
5. The American Academy of Microbiology releases report
6. Journal announces scientific releases
7. ICSU releases GMO synthesis report
8. CAST releases report on environmental impacts of grazing systems on our nations resources
9. Twenty-years of long-term ecological research: National Science Foundation releases review report
10. NNSAs Livermore Lab partners with cities and counties to track biological, chemical releases
11. Refrigerator disposal releases ozone-depleting chemicals

Post Your Comments:
(Date:11/4/2014)... 4, 2014   Neurotechnology , a provider ... the latest version of its fingerprint matching algorithm ... MINEX evaluation organized by NIST. The MINEX ... the INCITS 378 fingerprint standard template format. MINEX ... tenders in the United States ...
(Date:11/3/2014)... A University of Colorado Cancer Center study ... Academy of Sciences describes the activity of a ... Interleukin 37 or IL-37. It has been known to ... in the adaptive immune system: IL-37 inhibits the ability ... antigens. , "Knowing this mechanism that underlies IL-37,s effect ...
(Date:11/3/2014)... birth weight and preterm birth are linked to increased ... published in the American College of Rheumatology (ACR) journal, ... birth weight and pre-term babies were not at greater ... , According to the ACR, 27 million Americans ... OA. Symptoms of OA range from mild to severe ...
Breaking Biology News(10 mins):Neurotechnology Places Second in Ongoing MINEX Ranking for Fingerprint Matching Algorithms 2Neurotechnology Places Second in Ongoing MINEX Ranking for Fingerprint Matching Algorithms 3PNAS: From HIV to cancer, IL-37 regulates immune system 2Preterm, low birth-weight babies may need new hips in adulthood 2
(Date:11/26/2014)... 26, 2014 The ETC (Emerging ... technology innovation centers, announced today that applications for ... December 1st. “Do you have a big idea?,” ... want to know about it. AccelerateBaltimore helps you ... product in just 13 weeks.” Interested game ...
(Date:11/26/2014)... 25, 2014 Silicon Valley Electronic Data ... RPM Alliance , provider of clinical research and ... the latest addition to its CRO Partnership Program, Clinovo ... system to India. , “We have found Clinovo’s ... customizable EDC platform which is both user friendly and ...
(Date:11/26/2014)... November 25, 2014 Miles Holder, formerly ... the Graphel Carbon Products team as Sales/Marketing Manager. Mr. ... and customer service for the graphite industry. , “We ... our team,” stated Dave Trinkley, VP of Market and ... range of experience in the graphite industry, along with ...
(Date:11/26/2014)... , 25 novembre 2014 Theravalues Corporation est ... le marché européen au salon Hi Europe 2014 ... ). Curcumine la plus biodisponible ... amorphe (non-cristalline) à des ingrédients approuvés par les ... pigment jaune présent dans la racine de curcuma ...
Breaking Biology Technology:AccelerateBaltimore Applications to Close in 6 Days 2AccelerateBaltimore Applications to Close in 6 Days 3RPM Alliance Joins Clinovo’s CRO Partnership Program, Further Strengthening Its Presence in Southern California and India 2Miles Holder Joins Graphel Corporation as Sales/Marketing Manager 2La curcumine présentant la plus haute biodisponibilité bientôt en vente en Europe 2La curcumine présentant la plus haute biodisponibilité bientôt en vente en Europe 3
Cached News: