Latest Surface runoff Stories
Field tests by University of Missouri scientists have backed up laboratory research indicating that buffer strips of grass and other plants can reduce the amount of herbicide and veterinary antibiotics in surface runoff from farm plots.Vegetative buffer strips have already proven effective in limiting erosion as well as reducing sediment and nutrients in runoff.The findings come amid concerns about the potential of veterinary antibiotics in surface water leading to the emergence of...
U.S. Department of Agriculture (USDA) scientists are helping meet the water demands of a riparian desert region that is home to a national conservation area and a thriving military base.Agricultural Research Service (ARS) hydraulic engineer Dave Goodrich and hydrologist Russ Scott have been part of Arizona's Upper San Pedro Partnership (USPP)-a mix of 21 federal, state, and local groups managing the region's water-supply needs-since the association started in 1998. ARS is USDA's chief...
Over 50 percent of the population in the United States and over 60 percent in the world live in coastal areas. Rapidly growing human populations near the ocean have massively altered coastal water ecosystems. Â One of the most extensive human stressors is the discharge of chemicals and pollutants into the ocean. In the Southern California Bight, more than 60 sewage and urban runoff sources discharge over 1 billion gallons of liquid on a dry day with the two largest sources of contaminants...
The global demand for fresh water will exceed the available supply by an estimated 40% within the next 20 years, according to research scheduled to be presented at a Canadian Water Network (CWN) conference this week.Roughly 300 scientists, economists, and policy makers will attend the international summit, which will be held in Ottawa from February 28 through March 3, according to a CWN press release. In addition to research findings, speakers and other participants will present new...
Much of the Mississippi River's sediment load doesn't come from field runoff, according to work by scientists at the U.S. Department of Agriculture (USDA). Instead, the scientists with USDA's Agricultural Research Service (ARS) have confirmed that stream bank collapse and failure can be chief contributors to high sediment levels in the silty streams and rivers that flow into the Mississippi. ARS is USDA's chief intramural scientific research agency.The U.S. Environmental Protection Agency...
RICHMOND, VIRGINIA, Feb. 8 /PRNewswire/ - In developing its new Howard Quad Complex, a $20 million, 458-bed residence hall, Virginia State University (VSU) relied on Imbrium Systems' SorbtiveFILTER technology to treat stormwater runoff from adjacent parking lots. The Quad Phase I is the first of two projects consisting of four, L-shaped residence halls that will eventually cover the area now occupied by Howard Hall. The University is situated in Chesterfield County at Ettrick on a bluff...
The Estero de Domingo Rubio wetland, located near the Marismas del Odiel Natural Area in the Huelva estuary, is regionally, nationally and internationally protected thanks to its ecological value. However, its tributary rivers and the RÃa de Huelva estuary pump manmade pollutants into it, which could affect its water quality and ecosystem.Industrial activity, accumulations of dangerous waste, the expansion of farming, and excessive extraction of sand and gravel for the construction...
By Don Comis, ARSRain gardens are increasingly popular with homeowners and municipalities and are mandatory for many communities nationally. U.S. Department of Agriculture (USDA) scientists are finding ways to improve rain gardens so they not only reduce runoff, but also keep toxic metals out of storm drains.Rain gardens are plantings in depressions that catch stormwater runoff from sidewalks, parking lots, roads and roofs. Rain gardens come in various shapes and sizes, from large basins...
Technology offers design teams, engineers and landscape architects full, project-specific documentation to assess roof contributions in meeting both municipal and LEED stormwater requirements Chicago, IL (PRWEB) December 1, 2010 American Hydrotech, a recognized leader in the development and distribution of premium waterproofing and roofing products, today announced the availability of an industry-first Hydrotech Hydrology Tool (HHT), providing architects, engineers, building owners and...
Estimating the long-term impact of agriculture on land is tricky when you don't have much information about what a field was like before it was farmed. Some fields in Missouri started producing crops more than a century ago"”long before anyone kept detailed records about the physical and chemical properties of the soil in a field.Researchers can't go back in time to revisit old fields in their pristine state, but a University of Missouri graduate student did perhaps the next best thing,...
Latest Surface runoff Reference Libraries
Erosion is the process by which rock and soil are taken from the surface of the Earth by exogenetic processes like wind or the flow of water, and then transported and deposited in another location. While erosion is a natural process, human activities have increased by 10 to 40 times the rate at which erosion is happening globally. Excessive erosion results in problems such as desertification, decreases in agricultural productivity because of land degradation, sedimentation of waterways,...
The water cycle (or hydrologic cycle) describes the continuous movement of water above, below, and on the planet. Since the water cycle is in fact a "cycle", there is no beginning or end. Water exists in three states: liquid, vapor, and ice. Although the balance of water on our planet is fairly constant, individual water molecules may come and go. The water cycle is driven by the sun. The sun heats the oceans and allows water to evaporate into the air. The sun also heats snow and ice which...
