Tag: "soils" at biology news
ORNL system eliminates perchlorate, helps scientists trace source
...xplosives but also occurs naturally, as in nitrate soils
from Chile used to make fertilizers, making the source sometimes difficult to trace. Conventional treatments use tiny resin beads to trap the perchlorate, but the spent resin becomes contaminated, and disposal is costly or impractical. Th...
Three years of Proba, the 'smart' satellite that runs itself
...studying spectral reflectance of crop residues and soils
in France, biodiversity monitoring in Africa, coastal area mapping in the south of Chile and archaeological projects in Spain. Proba's additional payload The other imager on board Proba is the compact HRC, which has an even higher spatial resolu...
Stanford environmental molecular science institute will study pollutants, one molecule at a time
...will be on how heavy metal contamination in water, soils
and sediments interacts with the surfaces of environmental solids and bacteria. ''We live in a world of interfaces among solids, liquids, gases, microbial organisms and plants, which are the locations of most chemical and biological interactions in t...
Scientists find acid rain an unlikely ally in the battle against a greenhouse gas
...it is destroyed via oxidation as it moves from wet soils
below the water table through dry soil to the surface. Despite substantial oxidation, natural wetlands remain the single largest source of methane emission accounting for about one third of the global annual total methane. "It's a complicated proces...
Not finding life? Dig deeper.
... 2003, scientists reported that the driest Atacama soils
were sterile. Not so, reports a team of Arizona sc...n rainfall event" -- adding water to the Atacama's soils
-- and seeing whether the team could then detect microbial activity. ...
Birds, butterflies, bacteria same law of biology appears to apply
...s sampled the microbial fungi Ascomycota in desert soils
of a 62-square-mile national park in Australia. The Horner-Devine paper was based on bacteria sampled across a half-acre in a New England salt marsh. The studies span different microbial taxa, habitats, continents, molecular techniques and spatial...
NSF funds Panikov's Alaskan Tundra Microbial Observatory project
...ntensive year-round recording of gas emission from soils
to atmosphere, they found sizeable winter activity of the tundra microbial community." In laboratory experiments conducted in 2000 and 2004, Panikov and others, using sensitive radioisotope technique, detected respiratory activity of microorganisms...
K-State professor to discuss feeding the world's population without poison
...es in the world. He will emphasize that productive soils
and protection of water quality are the basis for ...g to Rice, technology for better management of the soils
and waters is available now for sustaining soil and water while providing food, fiber and energy for...
Stealth worms may improve insect pest control
...These juveniles also can survive dry conditions in soils
for long periods of time before they infect more insects. This naturally-occurring relationship between the nematodes and their mutualistic bacteria has existed for millennia. EPNs are found in terrestrial environments, including deserts, rainforests...
Could microbes solve Russia's chemical weapons conundrum?
...w generation of biotechnologies for remediation of soils
contaminated by CWAs or products of their detoxification. "Bioutilization of organic compounds of reaction masses is a biotechnological method that pro-vides maximum environmental safety, since the pollutants are naturally degraded to innocuous produ...
Acid rain likely stunts US forests
A recent international scientific study on Russian soils
raises concerns that acid rain may have serious im...d has been taken in measuring acid rain effects on soils
and trees," he said. "By providing the only preserved soil in the world collected before the acid r...
Defenseless plants arm themselves with metals
... every other plant species. Thlaspi plants live in soils
naturally enriched in nickel, and when growing in ... some obscure chance, those plants were growing on soils
with elevated metals. We've shown that high salicylic acid levels produce high glutathione levels. W...
Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra
...dra. It turns out that the nutrient-poor volcanic soils
of the Aleutian archipelago can only support dense grasslands if they receive regular doses of fertilizer in the form of bird droppings. On islands without foxes, seabirds transfer nutrients from the ocean to the land by feeding on marine fish and in...
Earth's services in peril, report concludes
... water filtration and flood control, the health of soils
as the basis for our food supply. The demand for water by people and industry has doubled since 1960. Underground aquifers are drying up, and sometimes the flow of once-mighty rivers such as the Nile in Africa or Colorado in North America is drained...
Study uncovers bacteria's worst enemy
...on. However, a single chemical rarely contaminates soils
and groundwater and combinations of actinides, radionuclides, organic chemicals and metal regularly exist at many nuclear sites. Based on the results of this study, if bioremediation is to be effective at these types of sites, the operative microorga...
Water research initiatives at UW-Madison
...tershed reacts relative to "old' mercury stored in soils
and lake sediments. With funds from the Water Resources Institute, UW-Madison water chemist James Hurley is working with an international team of scientists who are experimentally adding small amounts of mercury to a lake in Ontario, Canada, to trace...
Hawaiian soils reveal clues to cultural history
...e historical interactions between people and their soils
in Hawaii. Chadwick, a professor of geography and...e past year. One of the world leaders in relating soils
to ecology and earth system science, Chadwick belongs to a prominent research group in ecosystem stu...
'Live fast, die young' applies to forests, too
...ctive forests tropical forests growing on fertile soils
half of all trees die and are replaced by new growth in only thirty years. The faster turnover of trees means that the world's most productive forests may also be those likely to respond most rapidly positively or negatively to environmental chan...
How the environment could be damaging men's reproductive health
...age and agricultural chemicals. POPs from polluted soils
are washed off the land into the sea. Additionally, the atmosphere plays an important role in their transport over long distances. POPs have a strong tendency to bioaccumulate in marine and terrestrial food webs. Humans, being at the top of the food ...
New frontiers in molecular bioscience topic of UD symposium
...on understanding how drought conditions and saline soils
inhibit plant growth, and whether or not plants can recover from this stress and resume growth. His studies of water stress in marine plants such as the large-celled alga Chara corallina have been applied to corn and other important agronomic crops. ...
1 2 3 4 5 6 7