Waterways have come to be viewed as the dumping ground of agricultural runoff, industrial effluents and domestic sewage. |
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If the hourly application rate is excessive, runoff could pollute surface waters or flood adjoining areas. |
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Instant runoff voting, which compresses runoffs into general elections by having voters rank candidates in order of preference, is one solution. |
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In March, San Francisco voted to become the first American city to implement instant runoff voting for its major local elections. |
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Soil loss and runoff were evaluated over a 2-year period on the taluses of terraces, in this zone of intense subtropical orchard cultivation. |
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Whoever wins today's presidential runoff has themselves an enormous job, restoring hope and opportunity to a generation that has known only war. |
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Because it's 50 miles off the Queensland coast, the water is exceptionally clear, sans coastal runoff and sediment. |
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One theory holds that rainstorm runoff saturates the ground, making it slippery and allowing heavy gales to push the rocks. |
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Apply the spray to the point of runoff to as many surfaces as possible, especially joints, seams, cracks, ledges, and corners. |
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The team is expected to lobby several political parties in a bid to win their support for the ticket in the runoff, he said. |
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Following melt initiation, the intensity of melt is another consideration in the production of meltwater runoff. |
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This is what we call spraying to the point of runoff, that is, until water begins to drip off the leaves. |
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The Region of Waterloo has recently posted signs around the region warning people that the pumps are in areas that are sensitive to runoff. |
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When space is limited, oil-grit separators and other small technologies can be useful in treating the initial first-flow runoff. |
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A drain constructed from sheet metal guttering was installed at the foot of each plot to intercept the runoff. |
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Roofs covered in greenery reduce stormwater runoff, minimize heat gain, temper the microclimate, and improve the view. |
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Matched precipitation heads are recommended to ensure that wastewater is evenly applied to avoid ponding and surface runoff. |
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However, some agricultural industry groups contend that there is not enough evidence to link farm runoff to red tides or dead zones. |
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By damming runoff, poor ridge layouts may aggravate surface drainage problems. |
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Applying liquid sprays to dry feathers often results in loss of some of the insecticide due to runoff. |
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He said the third generation family property was using trees as shelter belts and for managing runoff. |
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And if no trees are left on the valley slopes to sop up runoff from the rains and slow its flow, a tropical river will wither and die. |
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The runoff hose was supplied by a tank reservoir that permitted measurement of the outflow. |
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In November, she convincingly won the presidency in a runoff against her soccer-star opponent. |
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Although they prefer clear, fresh running water, they seasonally adapt to turbid water caused by runoff and flooding during the rainy season. |
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Additionally, once logged, many national forests are prone to flooding, mudslides and stream destruction due to runoff and siltation. |
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The unanimous decision to reelect Sahal came after he emerged the sole candidate to qualify for the runoff. |
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Mulch the soil well to help absorb runoff and to block evaporation of moisture. |
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Therefore, if runoff can be diverted away from it with dikes and interception ditches, sediment transport can be reduced. |
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In springs of average to high runoff, a few drainages may prove unfordable, requiring a detour. |
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Copper from this pesticide formulation has been found in runoff from fields that have plastic mulch. |
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Water abstraction, agricultural runoff, climate change, and pollution from sewage treatment plants have all been blamed. |
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Liquid manure applied at rates greater than the soil infiltration rate or water-holding capacity can promote runoff. |
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Metal borders located downslope from the plots collect the runoff and direct it into gutters that empty into a plastic bottle. |
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We should push states to require majority winners through instant runoff voting. |
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Permeable surfaced parking areas and engineered swales will force runoff through plant-based filtration to remove contaminants. |
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The saline crust is well developed on the interfluves between the valleys and shows little or no evidence for active runoff. |
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The undisturbed forest was criss-crossed by natural swales that drained runoff to a wetland in the valley north of the site. |
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All products have the potential to contaminate ground and surface water if used improperly through leaching, runoff and off-target application. |
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Once depressions are full, there will be more surface runoff because of the slower infiltration rate. |
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The new regulations managing phosphorus runoff from manure applications are not yet finalized. |
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Storm surge combined with high tides and runoff from rainfall took boaters by surprise as new high water marks were recorded. |
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Fertilizer in irrigation runoff has caused the normally small cattail patches to spread densely over thousands of acres. |
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Green roofs absorb storm water and filter polluted runoff before it ends up in our lakes. |
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You also want to be sure you don't set up your trailer and the generator in an area that might be subject to washouts or runoff from a slope. |
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The runoff from watering your plants goes into the tray and evaporates, providing extra humidity. |
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Californians face waterborne illnesses lurking in the surf from urban runoff, and towns have lost their drinking water due to contamination. |
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These conditions raise the potential for nitrification, leaching, denitrification, or runoff losses. |
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But there's some typical things you might expect with runoff areas and whatnot. |
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Adding more trees will improve air quality, reduce stormwater runoff, slow soil erosion, and improve water quality and recharge. |
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Heavy rain and king tides meant many beaches were contaminated with wastewater runoff. |
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The dilute spray volume is based on the rule that it takes 0.7 to 1.0 gallon to treat 1,000 cubic feet of tree canopy to the point of runoff. |
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The lake largely dried up in droughts or in warm summers, refilling from the runoff of melting show. |
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Except during spring snowmelt and runoff, freshwater input to coastal lagoons is limited. |
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A detention time as short as 30 minutes can be used to settle out solids from dilute waste waters such as open-lot runoff. |
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Urban runoff has been a problem as long as people have lived along the oceanside. |
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But trees help control runoff by soaking water in through their roots and providing sturdy support against erosion. |
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Australia and Ireland also use instant runoff voting, which eliminates primaries by allowing voters to mark a second and third place choice. |
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Despite the looming specter of childers, McDaniel still has a significant edge in the runoff. |
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This contribution is expected to increase as melting rates accelerate, though ultimately the added runoff is predicted to disappear as glaciers decline many decades from now. |
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Smith told me that he especially enjoyed the plenaries given each day on agricultural watersheds, watershed cycling of pollutants and urban runoff. |
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When morning comes and the street sweepers clean the gutters, they are sometimes followed by vacuum trucks, lest the runoff contaminate the storm drains. |
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The same runoff going into the river, diluted with 73 percent less water, would have seriously deteriorated water quality until it was unfit for human contact. |
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We reached the 200 mile mark today as we footslogged through the runoff. |
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As winter came and went, and the bulldozer came and went with it, the main access roads turned into deep trenches, sluicing runoff and causing serious erosion. |
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In addition to permanently acidified lakes, there are also episodic decreases in pH in dilute, but usually non-acid lakes, caused by runoff of acid snow melt in the spring. |
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The rainwater drainage system recharges the groundwater with runoff. |
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As we climb the trail slowly almost unnoticeably deteriorates, more tree roots, more water runoff, more mud, and no more strong well-built bridges, but lots more streams. |
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Texas requires candidates to win an absolute majority in a primary, so the two will face off in a late-July runoff. |
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The residue slows the runoff, allowing more time for infiltration. |
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The searing heat also fuses the soil into an impermeable layer that increases runoff and stream sedimentation and slows the forest's ability to recover. |
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Glacier Park has quite a few mountains with living glaciers, and the runoff rivulets, creeks and rivers have an opalescence that is indescribably beautiful. |
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Soil compaction causes farmers a lot of problems by preventing moisture from seeping down to plant roots and by increasing water runoff and wind erosion. |
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With a bit of luck and duct tape, I thought we might put together enough votes to avoid a runoff. |
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This replenishes the water table while it filters and reduces toxins that otherwise would be picked up from impervious surfaces and concentrated in stormwater runoff. |
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But what if a Louisiana runoff will determine which party controls the Senate? |
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Under Mississippi law, if no candidate receives 50 percent, a runoff is mandated, held three weeks later. |
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Clam and mussel harvesters have been helped by the dry weather, with few flats being shut down because of bacterial pollution caused by runoff from rainstorms. |
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Make sure the manure is stored in a location away from wells and any waterways, and that any runoff is confined or slowly released into a vegetated area. |
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In a four-way race with very credible candidates, a runoff is almost guaranteed, but what matters is which candidates participate. |
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Melting snow runoff caused the waters of the Schuylkill to move ferociously, leading race officials to remove the stake boats at the start of the 2000 meter race course. |
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For the remaining Republicans, the end of the primary will merely be the beginning of a frenzied sprint to the runoff. |
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Morsi received just over 50 percent of the vote in the presidential runoff, and the mb dominated parliamentary elections. |
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These glaciers store water during the rainy season and release it as runoff in the dry season. |
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Slope aspect or direction of exposure may also influence surface runoff. |
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The complex biogeochemical transformations that occur in wetlands have the ability to attenuate contaminants in runoff waters coming from a variety of human activities. |
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The tree borders or vegetative buffer strips that are often planted around farm fields to filter out sediment and pesticides in runoff may also provide habitat. |
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Clean rain gutter and redirect downspout runoff away from the foundation. |
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Cattails and bulrushes are especially efficient at absorbing large quantities of nitrogen and phosphorous, substances easily transported in runoff. |
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The runoff has turned into a macabre political sideshow filled with grotesque attacks and ugly accusations. |
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A runoff is to take place between the two top vote getters as no candidate gained more than 50 percent of the votes, needed to secure an electoral victory. |
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So then-President George H.W. Bush and other prominent Republicans endorsed Treen in the House runoff. |
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Locate and design feedlots or barnyards carefully to prevent surface runoff toward well heads and well recharge areas, drainage ditches, or streams. |
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The ubiety between runoff and deposit is the primary factor that brings on the particularity of hydrogeology characteristics about mines along river. |
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Nearly level topography, where soil usually drains poorly, may also result in surface movement of materials by water when a saturated condition in the soil causes high runoff. |
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The former category includes agricultural runoff and motor oil leakages. |
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Within the Mackenzie Basin, a northward decrease in runoff reflects the spatial trend in precipitation, which shows a decline towards the northern plains and the Shield areas. |
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All roofs that would contribute to runoff from the feedlot should have gutters, downspouts, and outlets that discharge water away from the feedlot. |
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The creek is flowing strong from all the runoff and spring thaw. |
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High levels of nitrate in drinking water, which can be due to agricultural runoff, have been implicated in human health problems, such as blue baby syndrome. |
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The portion that is not plant-available is either not in the proper chemical form for plant uptake or leaves the field through runoff or volatilization before it can be used. |
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More compacted soils will have a larger amount of surface runoff than less compacted soils. |
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Pusey was an agrotech nerd and one of the first to use the new drainpipes to channel runoff water. |
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It becomes surface water runoff through atmospheric scouring associated with rainfall and fogfall. |
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Fertilizer runoff from surrounding agricultural land has exacerbated the problem and led to increased eutrophication. |
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In areas where snow buildup causes difficulties, this lets farmers plant the soil earlier, as the snow runoff drains away more quickly. |
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Drainage systems evolved slowly, and began primarily as a means to drain marshes and storm runoff. |
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For example, one method of measuring the runoff contamination of water sources involves magnetism. |
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In Eurasia, large lakes developed as a result of the runoff from the glaciers. |
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Water pollution from agricultural runoff causes dead zones for plants and aquatic animals due to the lack of oxygen in the water. |
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Estuaries tend to be naturally eutrophic because land runoff discharges nutrients into estuaries. |
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Peat is used in water filtration, such as for the treatment of septic tank effluent and as for urban runoff. |
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Increased nutrients, ascribed to agricultural runoff, have been cited as contributing to jellyfish proliferation. |
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By measuring rainfall, runoff, and drainage area, Perrault showed that rainfall was sufficient to account for flow of the Seine. |
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Surface cover increases capacity by retarding runoff, reducing compaction and other processes. |
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Initial input to receiving waters may arise from a point source discharge or a line source or area source, such as surface runoff. |
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A land area which produces runoff that drains to a common point is called a drainage basin. |
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Surface runoff can be generated either by rainfall, snowfall or by the melting of snow, or glaciers. |
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However, not all rainfall will produce runoff because storage from soils can absorb light showers. |
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When the soil is saturated and the depression storage filled, and rain continues to fall, the rainfall will immediately produce surface runoff. |
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This runoff is called saturation excess overland flow or saturated overland flow. |
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When anthropogenic contaminants are dissolved or suspended in runoff, the human impact is expanded to create water pollution. |
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Sheet erosion is the overland transport of sediment by runoff without a well defined channel. |
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If runoff continue to incise and enlarge rills, they may eventually grow to become gullies. |
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Surface runoff occurring within forests can supply lakes with high loads of mineral nitrogen and phosphorus leading to eutrophication. |
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Regarding soil contamination, runoff waters can have two important pathways of concern. |
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Firstly, runoff water can extract soil contaminants and carry them in the form of water pollution to even more sensitive aquatic habitats. |
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Secondly, runoff can deposit contaminants on pristine soils, creating health or ecological consequences. |
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Flooding occurs when a watercourse is unable to convey the quantity of runoff flowing downstream. |
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In urban areas, surface runoff is the primary cause of urban flooding, known for its repetitive and costly impact on communities. |
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Many world regulatory agencies have encouraged research on methods of minimizing total surface runoff by avoiding unnecessary hardscape. |
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In the 1950s or earlier hydrology transport models appeared to calculate quantities of runoff, primarily for flood forecasting. |
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In this case the surface runoff may be considered to be a line source of water pollution to the receiving waters. |
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Generally, topography plays a big part in how fast runoff will reach a river. |
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Similar slight overall increase in global river runoff and in average soil moisture has been perceived. |
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Instead, stream runoff in those areas flowed into closed basins and formed playa lakes. |
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The average flow of the river is very low, only a few cubic metres per second, but much higher flows are possible during periods of heavy runoff. |
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In the field of land development, low impact development is a similar technique for the prevention of urban runoff. |
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In addition to runoff from land, atmospheric fixed nitrogen can enter the open ocean. |
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Nitrogen in particular is removed through storm drains, sewage pipes, and other forms of surface runoff. |
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Nutrient losses in runoff and leachate are often associated with agriculture. |
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It should be also noted that lakes within forested land are also under surface runoff influences. |
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Still, some targeted point sources did not show a decrease in runoff despite reduction efforts. |
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The roots then improve water quality by consuming nutrient pollutants, such as from agricultural runoff. |
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Mitigation of polluted surface runoff is addressed through a variety of prevention and treatment techniques. |
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The major environmental threats to the Gulf are agricultural runoff and oil drilling. |
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Grants are sometimes available to protect these from rain to avoid runoff and pollution. |
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Around four fifths of oceanic debris is from rubbish blown onto the water from landfills, and urban runoff. |
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High nutrient levels such as those found in runoff from agricultural areas can harm the reef by encouraging the growth of algae. |
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In addition to land runoff, atmospheric anthropogenic fixed nitrogen can enter the open ocean. |
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Polluted runoff from roads and highways can be a significant source of water pollution in coastal areas. |
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If the soil is saturated, or if the rainfall rate is greater than the rate at which water can infiltrate into the soil, surface runoff occurs. |
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It increases the permeability of the soil to rainwater, thus decreasing runoff. |
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The topography of the land determines the velocity at which surface runoff will flow, which in turn determines the erosivity of the runoff. |
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Lagoons and backwaters characterise the lowland, which receives runoff from the rivers. |
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A runoff election was held in September 2007, and Ernest Bai Koroma, the candidate of the main opposition APC, was elected president. |
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Otherwise, surface water is restricted to a few large storage dams retaining and damming up these seasonal floods and their runoff. |
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It has been adversely affected primarily by bulkheading, urban runoff discharged by canals, and the loss of natural fresh water flow. |
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Cape York Peninsula contributes as much as a quarter of Australia's surface runoff. |
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Nanson combined the newly described instant runoff voting with the Borda count to yield a new Condorcet method called Nanson's method. |
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The areas that are not arid and receive high precipitation experience periodic flooding from rapid snowmelt and runoff. |
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A drainage basin is the topographic region from which a stream receives runoff, throughflow, and groundwater flow. |
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Soil compaction also affects the permeability of the soil to water, and hence the amount of water that flows away as runoff. |
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The variation in these factors is also reflected in the contrasting runoff characteristics and subsequent inflows of the principal tributaries. |
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Surface runoff from ridgeline development can contaminate rivers and streams that supply drinking water downstream. |
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When there is very heavy rainfall on California hillsides over a prolonged period, there is almost always ensuing surface runoff. |
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The winner of Tuesday's runoff election for mayor, Jim Whelan, pledged today to heal racial divisions. |
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Cochran just flat outworked his opponent all through the runoff. |
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Another scientist shows viewers a frog, exposed to atrazine in the agricultural runoff of farms in Salinas, Calif. |
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The lapse rate increases when the portfolio is set in a runoff position, and falls thereafter. |
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Republicans Mike Schofield and Ann Hodge are speeding toward a May 27 runoff for House District 132, the Houston-area seat that state Rep. |
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Inconspicuous nutrient laden surface runoff from mature forest Sierran watersheds. |
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About 20 percent of the rain on conventionally tilled plots became direct surface runoff. |
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Surface runoff is generally considered to be the most significant source of that phosphorus. |
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The northern Ogallala, found near the surface in Nebraska, is replenished by surface runoff from rivers originating in the Rockies. |
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On Earth, tree-like channels of this kind are usually formed by surface runoff after significant rainfall, or when snow or ice melts. |
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The Optimizer is an innovative underground detention technology system engineered to stabilize and manage storm water runoff. |
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They reported both demasculinised male, and some defeminised female, wild fathead minnows in proximity to cattle feedlot effluent runoff areas. |
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That's when the recently deputized interim mayor will hand over the reins to the winner of a special runoff election. |
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Patty L, Real B, Gril JJ The use of grassed buffer strips to remove pesticides, nitrate and soluble phosphorus compounds from runoff water. |
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Urban playas in this region often are deepened and incorporated into stormwater management plans as catchments for surface water runoff. |
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When you have water flowing from storm water runoff, a sewage pipe, or any kind of strong flow, it eats away at the loose material. |
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Now, new hydrological analyses indicate just how much storm runoff and sediment washed into the surrounding waters in the wake of that storm. |
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Mountain runoff vulnerability to increased evapotranspiration with vegetation expansion. |
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Greenland's extensive ice sheet is a great source of meltwater runoff that adds to this phenomenon. |
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Already saturated soils in some areas could boost surface runoff and increase the flash flood threat. |
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In different velocities and directions, there was considerable differences in volume and peak flow of runoff hydrographs. |
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Calibration of loss estimation methods in HEC-HMS for simulation of surface runoff, Adv. |
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Agricultural runoff and wind blown debris are prime examples. |
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Sedimentologists at other sites found twenty-three-feet deep clay deposits in lake beds, showing that soil runoff, and thus agricultural decline, was a long-term problem. |
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Because the porosity of the surface soil results in virtually zero runoff, lenses are easily polluted by fecal waste, burials, and chemical spills. |
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After Karzai's alleged win of 54 per cent, which would prevent a runoff, over 400,000 Karzai votes had to be disallowed after accusations of fraud. |
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They are found in a wide range of habitats, ranging from seagrass meadows in hypersaline lagoons to brackish pools highly influenced by freshwater runoff or rainfall. |
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The team found insignificant amounts of organophosphate insecticides used to control boll weevils in runoff from either the Bt or non-Bt cotton sites. |
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The races include two runoffs for the Los Angeles City Council and one runoff apiece for the Los Angeles school board and the Community College District's board of trustees. |
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In addition, the group is working with Whittier Farms, which sits along tributaries to Manchaug Pond, to plant blueberry bushes and revegetate a buffer zone to catch runoff. |
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Alternative systems such as free runoff from falls, pond circulators or in-ground water spouts can be used as fresh, yet recycled water for conservation purposes. |
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Street dust then reaches water sources through runoff, facilitating the transfer of toxins to environments and communities that rely on these water sources. |
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But even on waterbodies fed primarily by surface runoff, late winter and spring can see exceptionally clear conditions, due to the cool water and limited growth of algae. |
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It is one of the left's best ever results and will raise momentum for next month's final runoff where only the two candidates will compete against each other. |
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The river has a history of flooding, mainly due to the high sides of its banks in its earlier stages, which cause rapid runoff of water following heavy rain. |
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Years of runoff from sewers and roads had accumulated in the slow running waters of this area and decomposition of organic matter was causing oxygen depletion. |
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Since River Ribble dredging ceased, the estuary is filling up with sand and is developing a meandering path, depending on the tides and river runoff. |
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They are porous and highly permeable to rainfall, and allow rainwater to slow percolate into the soil below, instead of flowing over the surface as runoff. |
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Wet, saturated soils will not be able to absorb as much rain water, leading to higher levels of surface runoff and thus higher erosivity for a given volume of rainfall. |
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Cities such as Milan depend on 80 percent of water from Alpine runoff. |
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When the fill is completed, this underdrain will form a continuous water runoff system from the upper end of the valley to the lower end of the fill. |
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Some runoff water is trapped for periods of time, for example in lakes. |
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Through erosion, runoff shapes the environment creating river valleys and deltas which provide rich soil and level ground for the establishment of population centers. |
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Water runoff often collects over watersheds flowing into rivers. |
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Evaporation greatly exceeds precipitation and river runoff in the Mediterranean, a fact that is central to the water circulation within the basin. |
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They found that algae can readily be used to reduce the nutrient runoff from agricultural fields and increase the quality of water flowing into rivers, streams, and oceans. |
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Shape will contribute to the speed with which the runoff reaches a river. |
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The resulting contaminated runoff represents not only a waste of agricultural chemicals, but also an environmental threat to downstream ecosystems. |
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Such land derived runoff of sediment nutrients, carbon, and contaminants can have large impacts on global biogeochemical cycles and marine and coastal ecosystems. |
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Some researches show surface runoff of pesticides, such as DDT, can alter the gender of fish species genetically, which transforms male into female fish. |
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In the case of surface waters, the impacts translate to water pollution, since the streams and rivers have received runoff carrying various chemicals or sediments. |
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Some of the contaminants that create the greatest impact to surface waters arising from runoff are petroleum substances, herbicides and fertilizers. |
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The principal environmental issues associated with runoff are the impacts to surface water, groundwater and soil through transport of water pollutants to these systems. |
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The soil particles carried in runoff vary in size from about. |
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Increased runoff reduces groundwater recharge, thus lowering the water table and making droughts worse, especially for farmers and others who depend on the water wells. |
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It is instead forced directly into streams or storm water runoff drains, where erosion and siltation can be major problems, even when flooding is not. |
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In areas where there is no snow, runoff will come from rainfall. |
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When runoff flows along the ground, it can pick up soil contaminants including petroleum, pesticides, or fertilizers that become discharge or nonpoint source pollution. |
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Jellyfish populations may be expanding globally as a result of overfishing of their natural predators and the availability of excessive nutrients due to land runoff. |
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Finally, vacuum sweeper trucks and towed collection units are used for collecting deicing runoff directly from the ramp pavement anywhere aircraft are deiced. |
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Pasture buffer strips were pre-wet by simulated rainfall and then subject to runoff from plots upslope of the pasture strips which had been previously subject to burning. |
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This surface runoff flows along concrete roads and sidewalks. |
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Water near discharging storm drains carry flood water and urban runoff. |
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They grew tepary beans on fields made of flash flood debris, irrigated by winter rains and summer monsoon runoff and not much else, ten inches or so of precipitation annually. |
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The StormFilter, a modular, siphonic media filtration system, provides an ideal solution for the treatment of polluted water flows created by runoff at industrial sites. |
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