 |
|
Expert to Discuss Phosphorus' Impact on Gulf 'Dead Zone'
October 29, 2009Phosphorus is an essential element in production agriculture, however fertilizer runoff and wastewater discharge have led to massive eutrophication problems in water bodies worldwide.
Many researchers believe such contamination is at least partly responsible for offshore "dead zones," such as the expansive area found in the Gulf of Mexico. While wetlands often act as filtering or storage systems for nutrients, protecting our landscape from contamination, researchers still do not fully understand the complex relationships between phosphorus and wetland ecosystems.
Dr. Curtis Richardson, an internationally acclaimed ecologist and wetland soil scientist at Duke University, will share his perspectives on current phosphorus research as part of the William H. Patrick Jr. Memorial Lectureship at the 2009 Annual Meetings of the American Society of Agronomy (ASA), Crop Science Society of America (CSSA) and Soil Science Society of America (SSSA) in Pittsburgh, PA.
Richardson's lecture, "Phosphorus Biogeochemistry and Wetland Function: The State of Our Understanding," will translate phosphorus biogeochemistry research into realistic management techniques to improve wetland ecosystems while sustaining ecological functions of the landscape. It will be held Tuesday Nov. 3, from 9:55 to 11:00 am in the David L. Lawrence Convention Center, Room 321.
The presentation will focus on questions surrounding phosphorus cycling and limitations, as well as the role of phosphorus in wetland functioning and landscapes. Through a comparative analysis of new studies and research, Richardson will address these and other issues, providing a modern analysis of the importance of phosphorus to our wetland world.
Richardson is the director of the Duke University Wetland Center and a professor of resource ecology at the Nicholas School of the Environment. He also serves as a scientific advisor to a USAID-sponsored project to restore the marshlands in southern Iraq. His research has focused on long-term ecosystem responses to large-scale perturbations such as nutrient additions, hydrologic alterations and trace metal effects in such areas as the marshes of Iraq and the Florida Everglades.
A new USDA program highlights the need for increased conservation practices. Called the Mississippi River Basin Healthy Watersheds Initiative, it provides a $320 million investment over four years to support programs in 12 states to help farmers voluntarily implement conservation practices which avoid, control, and trap nutrient runoff, improve wildlife habitat, and maintain agricultural productivity. In addition, agricultural researchers are developing sustainable conservation practices to decrease soil erosion and nutrient runoff.
The lectureship was established as a memorial to William H. Patrick Jr. and highlights a distinguished scientist who has made significant contributions to some aspect of wetland soils.
The Soil Science Society of America (SSSA)
Phosphorus Current Events and Phosphorus News RSSLet them eat snail
A nutritionist in Nigeria says that malnutrition and iron deficiency in schoolchildren could be reduced in her country by baking up snail pie.
Iron controls patterns of nitrogen fixation in the Atlantic
Scientists including researchers from the National Oceanography Centre, Southampton and the University of Essex have discovered that interactions between iron supply, transported through the atmosphere from deserts, and large-scale oceanic circulation control the availability of a crucial nutrient, nitrogen, in the Atlantic.
Wolves, moose and biodiversity: An unexpected connection
Moose eat plants; wolves kill moose. What difference does this classic predator-prey interaction make to biodiversity?
Quantum computer chips now 1 step closer to reality
In the quest for smaller, faster computer chips, researchers are increasingly turning to quantum mechanics -- the exotic physics of the small. The problem: the manufacturing techniques required to make quantum devices have been equally exotic. That is, until now.
Mystery Solved: Marine Microbe Is Source of Rare Nutrient
A new study of microscopic marine microbes, called phytoplankton, by researchers at Woods Hole Oceanographic Institution (WHOI) and the University of South Carolina has solved a ten-year-old mystery about the source of an essential nutrient in the ocean.
Engineers Produce 'How-To' Guide for Controlling the Structure of Nanoparticles
Tiny objects known as nanoparticles are often heralded as holding great potential for future applications in electronics, medicine and other areas.
Golf course putting greens show their age
Just like the rest of us, golf courses show their age-especially on putting greens, which experience more foot traffic than anywhere else on golf courses. Putting greens, which comprise only about 1.6% of the total area on most courses, require more intensive management than any other part of the course.
Perennial vegetation, an indicator of desertification in Spain
A team of scientists has analyzed 29 esparto fields from Guadalajara to Murcia and has concluded that perennial vegetation cover is an efficient early warning system against desertification in these ecosystems. The study has been published in the Ecology magazine.
Water quality improves after lawn fertilizer ban, study shows
In an effort to keep lakes and streams clean, municipalities around the country are banning or restricting the use of phosphorus-containing lawn fertilizers, which can kill fish and cause smelly algae blooms and other problems when the phosphorus washes out of the soil and into waterways.
Organic food not nutritionally better than conventionally-produced food
There is no evidence that organically produced foods are nutritionally superior to conventionally produced foodstuffs, according to a study published today in The American Journal of Clinical Nutrition.
More Phosphorus Current Events and Phosphorus News Articles
 |
Hyland's Phosphorus, 30X, 250 Tablets (Pack of 3) by Hyland's Homeopathic Homeopathic Medicine. Cough and sore throat. Made according to the Homeopathic Pharmacopoeia of the United States since 1903. |
 |
The 13th Element: The Sordid Tale of Murder, Fire, and Phosphorus by John Emsley (Author) Discovered by alchemists, prescribed by apothecaries, exploited by nineteenth-century industrialists, and abused by twentieth-century combatants, phosphorus is one of nature's deadliest- and most fascinating- creations. Now award-winning author John Emsley combines his gift for storytelling with his scientific expertise to present an enthralling account of this eerily luminescent element. From murders-by-phosphorus where the bodies glowed green, to the match factory strike that helped end child labor in England, to the irony of the World War II firebombing of Hamburg, to even deadlier compounds derived from phosphorus today. The 13th Element weaves together a rich tableau of brilliant and oddball characters, social upheavals, and curious, bizarre, and horrific events that comprise the... |
 |
Carlson Complexed Phosphorus 250 tablets by Carlson 100 mg Phosphorus per tablet from 1,000 mg Phosphorus amino acid complex. |
 |
Boiron Homeopathic Medicine Phosphorus, 30C Pellets, 80-Count Tubes (Pack of 5) by Boiron Homeopathic medicine. Made in France. |
 |
Boiron Homeopathic Medicine Phosphorus, 6C Pellets, 80-Count Tubes (Pack of 5) by Boiron Homeopathic medicine. Made in France. |
 |
Giorgio Brutini Men's 17282 Slipon,Navy/Phosphorus Blue,13 M by Giorgio Brutini Moc slip-on with penny strap. |
 |
Patagonia All-Time Shell - Women's Phosphorus Medium by Patagonia Women's All-Time Shell Jacket by PatagoniaFeatures:Environmentally friendly 2.5-layer recycled-polyester shell that repels rain and blocks windRemovable, 2-way adjustable hood2-way front zip with double storm-flap and snapsCollar lined in cozy microfleece for next-to-skin comfortWater-repellent handwarmer pockets have invisible zippers; vertical mesh-lined internal pocketSnap cuffs, drawcord hemJust-below-hip lengthShell: 2.5-layer, 50-denier 4.2-oz 100% all-recycled polyester ripstop with waterproof/breathable H2No barrier and Deluge DWR (durable water repellent) finish. Collar lining and chin guard: 4.2-oz 100% polyester (60% recycled) brushed fleece. Recyclable through the Common Threads Recycling Program454 g (16 oz)Made in China We are not able to ship Patagonia products outside the... |
 |
Osteoform Calcium Phosphorus Supplement 50ct Btl by VET A MIX Chewable tablets for dogs and cats. Calcium phosphorus ratio of 1.8 to 1 to aid in correcting deficiencies without excess phosphorus. Contains vitamin a, d, and c all involved in bone and cartilage metabolism. Aids in healing fractures. For young puppies of large breeds during rapid growth periods. Ideal for pregnant and lactating bitches. Give 1 to 2 tablets daily per 11 lbs. Of body weight. |
 |
OUTERS PHOSPHORUS BRONZE BRUSH 38/357/380/9MM 41970 by Outers Outers Phosphor Bronze Brush 38/357/9MM/380 8-32 Pistol |
 |
Copper Phosphorus Soldering Rods by Bernzomatic Brazing / welding rods. Joins copper to copper without flux or copper to copper alloys (brass and bronze). This alloy is widely used in refrigeration, electrical and plumbing jobs to join copper tubing and pipe, electrical wires and flexible tubing. Excellent for soldering copper tubing connections even with water in the line. |
| © 2009 BrightSurf.com |