Disturbing former farmlands can rouse old pesticides, says Dartmouth research
..." says Renshaw. "While the arsenic and lead in the soils of old orchards is essentially immobile as long as the land is not disturbed, our work suggests that the development of these lands can inadvertently mobilize these metals toward bodies of water. Communities in these areas may want to ensure addition...New study confirms the ecological virtues of organic farming
...ertilizations revealed that organic and integrated soils emitted larger quantities of an environmentally benign gas called dinitrogen (N2), than soils treated with conventional synthetic fertilizer. One explanation for this disparity is that the organ...Woods Hole Research Center scientist furthering discussion of soil carbon decomposition
Significantly more carbon is stored in the world's soils than is present in the atmosphere. In a process called a "positive feedback," global warming may stimulate decomposition of soil organic matter, thus releasing heat-trapping carbon dioxide gas to the atmosphere, possibly causing the rate of global wa...Subsurface bacteria release phosphate to convert uranium contamination to immobile form
...species from three genera isolated from subsurface soils collected at a U.S. Department of Energy (DOE) Fie...ch are all influenced by the natural properties of soils and groundwater," Taillefert said. Sobecky added, "What we're doing now is optimizing the assay co...Highlights of American Chemical Society meeting in Atlanta, March 26-30
...the compound while studying its presence in desert soils in the southwestern United States. They found that perchlorate can form when certain soils containing chloride salts are exposed to sunlight. The researchers also showed that the compounds ca...Nature can help reduce greenhouse gas, but only to a point
...e soil. "What our paper shows is that in order for soils to lock away more carbon as carbon dioxide rises, there has to be quite a bit of extra nitrogen available--far more than what is normally available in most ecosystems," said Hungate of NAU's Merriam-Powell Center for Environmental Research. The pape...Researchers discover way to transport environmental arsenic to plant leaves in new clean-up strategy
...rs call phytoremediation--the cleaning of polluted soils through the use of plants that sequester poisons, make them less harmful, and which can then be harvested--and has the potential to be of use on millions of acres of arsenic-polluted lands worldwide. In research reported in 2002 in Nature Biotechnolo...Hold your breath; Plants may absorb less carbon dioxide than we thought
...O2). Given that a large proportion of the world's soils are nitrogen-limited, the study implies that the rate of increase in atmospheric CO2 levels could turn sharply upward as nitrogen-limited plants lose their ability to take advantage of the extra CO2 "food." Since rising atmospheric CO2 levels are the...Plants' role in global warming re-examined in ORNL Science paper
... our simulations, more carbon stored in plants and soils corresponds to less carbon released to the atmosphere in response to climate change, and a weaker positive feedback between carbon and climate and a weaker amplification of additional warming," the authors write. The paper concludes by saying, "There...Gut reaction: Researchers define the colon's genome
...spects the human gut is at least as complex as our soils or seas. With the evidence at hand, the researchers have described greater diversity in the human gut than researchers have reported for samples of acid mine drainage. These microbes are busy, too. The new study shows that resident microbes in the co...Acid rain causing decline in sugar maples, say researchers
...s, running factories and driving cars, has altered soils and reduced the number of sugar maple trees growin... calcium leads directly to more acidic soils. When soils become too acidic, such trees as sugar maples become stressed and have a harder time growing or prod...Rangeland repair enters phase 2
...up to a site and make a determination based on the soils and vegetation as to what condition that is," Fox said. Then land managers could make a decision about where in the restoration process needs to begin. This type of scale is nothing new for agricultural use, but for military land, it is, he said "Ou...Thawing soil in permafrost a significant source of carbon
...h scientists estimate holds about 40,000 gigatons; soils contain about 2,500 Gt and vegetation about 650 Gt...fied ... and in part because global data bases for soils have been standardized to provide data only for the top meter of soil," Chapin said. "People know ab...Tropical forest CO2 emissions tied to nutrient increases
...ngs of key nutrients given to tropical rain forest soils caused them to release substantially more carbon d...- both of which occur naturally in the rain forest soils -- were added to forest plots in Costa Rica, they caused soil microbes to increase their CO2 emissio...Tropical rainforest nutrients linked to global carbon dioxide levels
...a amounts of key nutrients in tropical rain forest soils cause them to release more carbon dioxide into the...e in carbon dioxide emissions from tropical forest soils due to soil nutrients is a new dimension in understanding these important ecosystems," said Martyn C...2006 World Food Prize recipients to be recognized at soils congress
...ch in the 1950s analyzed the complexity of Cerrado soils and showed that a transformation of the region was possible. His work uncovered an innovative soil improvement process to correct the drastic nutrient depletion of the Cerrado and counteract aluminum toxicity in the region's highly acidic soils, conc...The End of Poverty author to keynote soils congress
...around the world on such topics as climate change, soils and health, urban planning, crop production, hazardous waste, and more. The World Congress of Soil Science is a unique international event held in a different city every four years (last held in the U.S. in 1960). For more information, go to: www.18...Internationally acclaimed soil scientists to receive awards in Philadelphia
...rsity. Since joining OSU in 1987, he has worked on soils and climate change, soil degradation, and global f...re. His research has included "Stagnosols", desert soils in the Central Sahara, soil ecology, and Cryosols in Antarctica. He has served as president of the G...Q&A with Jeffrey Sachs on July 10 at Soils Congress
...around the world on such topics as climate change, soils and health, urban planning, crop production, hazardous waste, and more. It is a unique international event held in a different city every four years (last held in the U.S. in 1960). This Congress is being organized by the International Union of So...Ancient raindrops reveal the origins of California's Sierra Nevada range
... of ancient rainfall to minerals formed in ancient soils provides a powerful way to infer those paleoelevations and is creating a burgeoning set of data from the Himalayas and Tibet, the Andes and now the Sierra Nevada." Gold Rush diggings In the study, the Stanford team compared modern rainfall with...