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Latest Surface runoff Stories

2010-11-05 15:39:13

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...

2010-10-30 00:00:40

Azavea (formerly Avencia), an award-winning Geographic Information Systems (GIS) software design and development firm, announces the launch of PhillyStormwater.org, a public web Stormwater Billing application (http://PhillyStormwater.org/) for the Philadelphia Water Department (PWD). The application supports the City of Philadelphia's new parcel-based stormwater billing program. Philadelphia, PA (Vocus) October 29, 2010 Azavea, an award-winning Geographic Information Systems (GIS) software...

2010-09-30 11:23:00

BOSTON, Sept. 30 /PRNewswire/ -- On Tuesday, September 28, 2010, New York City Mayor, Michael Bloomberg, spoke from the roof of P.S. 118 in Queens on technologies that the City will be considering to reduce stormwater flow impacts to wastewater treatment plants. One of the technologies, blue roofs, uses site-specific retention systems to mechanically slow the release of stormwater from roof surfaces to stormwater collection systems, thereby, reducing storm flows to the City's 14...

2010-09-27 15:02:00

EBENSBURG, Pa., Sept. 27 /PRNewswire/ -- Passed by the state legislature in 1978 and fueled by increased urbanization statewide, Public Act 167 was designed to reimburse up to 75 percent of communities' costs to create and update comprehensive stormwater management plans contracted through the Pennsylvania Department of Environmental Protection (DEP). Once developed, the plans are designed to help communities mitigate increased stormwater runoff and downstream flooding risks associated...

2010-09-24 13:48:00

HARRISBURG, Pa., Sept. 24 /PRNewswire-USNewswire/ -- Agriculture Secretary Russell C. Redding today reminded Pennsylvania producers to plant cover crops this fall to keep beneficial nutrients in the soil and reduce nitrogen runoff into local waterways, including the Chesapeake Bay watershed. By planting cover crops--a small grain crop planted in the fall--producers reduce soil erosion, improve soil quality, decrease nutrient leaching, suppress weeds and attract beneficial pests....

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2010-09-21 08:25:00

Snowmelt in the Colorado River basin is occurring earlier, reducing runoff and the amount of crucial water available downstream. A new study shows this is due to increased dust caused by human activities in the region during the past 150 years. The study, led by a NASA scientist and funded by the agency and the National Science Foundation, showed peak spring runoff now comes three weeks earlier than before the region was settled and soils were disturbed. Annual runoff is lower by more than...

2010-09-20 14:47:00

WASHINGTON, Sept. 20 /PRNewswire-USNewswire/ -- Snow melt in the Colorado River basin is occurring earlier, reducing runoff and the amount of crucial water available downstream. A new study shows this is due to increased dust caused by human activities in the region during the past 150 years. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) The study, led by a NASA scientist and funded by the agency and the...

2010-08-20 10:00:00

HARRISBURG, Pa., Aug. 20 /PRNewswire-USNewswire/ -- The Department of Environmental Protection is providing municipal drainage system operators a nine-month extension of their existing general permit to better coordinate implementation of new permitting requirements. The extension applies to general permit PAG-13, which governs how municipal separate storm sewer systems handle stormwater runoff in urban areas. These systems, commonly referred to as MS4s, are publicly owned networks of...

2010-08-18 15:04:04

Reducing the runoff from plant nutrients that can eventually wash into the Chesapeake Bay could someday be as easy as checking the weather forecast, thanks in part to work by U.S. Department of Agriculture (USDA) scientists. One way farmers manage manure from their livestock is by applying it to crop fields, which increases soil levels of nitrogen and phosphorus. But when it rains, the nitrogen and phosphorus in freshly applied manure is much more likely to run off and pollute nearby water...

2010-08-16 15:14:48

Arsenic in food supplements passes through chickens, then passes through the field Fields amended with poultry litter can accumulate significant levels of arsenic, according to studies by USDA-Agricultural Research Service (ARS) scientists and associates. These findings provide key information about the agricultural pollutants that can build up in agricultural soils over time"”and possibly migrate into nearby streams and rivers. Poultry producers have sometimes supplemented chicken...


Latest Surface runoff Reference Libraries

Erosion
2013-04-01 12:48:39

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,...

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2009-07-06 17:58:20

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...

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Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.