runoff

Site such areas where the surface runoff during rain will not cause contamination , and protect the area with cutoff ditches.

But over the last 30 years "there has been an increase in runoff, " he said in an email exchange.

The main reason was that the operation effect of Danjiangkou reservoir for runoff was more in the low water period than in the flood period.

The total land area that contributes surface runoff to a river or lake is called a watershed, fiver basin, or catchment area.

The Iron Runoff was a bit of a struggle at first and the toughest set of races for me so far in Forza 2.

South African diplomats said they did not know in advance that Mr. Tsvangirai would pull out of the runoff.

When slope gradient and soil surface hydrological condition had not change, runoff increased with increasing of rainfall intensity.

Therefore, tree planting and grass growing in semi-arid area maybe reduce runoff, meanwhile, improve monthly runoff distribution in a year.

Tsvangirai withdrew from the presidential runoff election Sunday saying that it was an illegitimate, violent sham.

But she was just short of a majority, so she will face a run-off runoff election.

Aristide arrived in Haiti two days before the runoff but has kept a low profile so far and did not endorse a candidate.

But she was just short of a majority, so she will face a runoff election.

The area around the distribution point should be paved with stones or gravel or protected by boards, with a runoff to allow proper drainage.

If no presidential candidate wins at least 50 percent of the vote a runoff election is to be held in three weeks.

The article describes the source and features of Weihe and analyzes runoff changes of Weihe in a year.

The runoff became necessary after the Zimbabwe Election Commission determined Tsvangirai did not get more than 50 percent of the vote.

Our rivers are the places for putting wastewater and industrial waste, as well as the runoff from streets and the land.

Organic pollutants inflow into the bottom of rivers and drainage channels with rainfall and surface runoff directly.

I thought we would win handily in the June 11 runoff unless there was a very small turnout, in which case anything could happen.

But urban runoff and septic seepage are not always the main culprits behind microbial pollution.

The new study focused on surface melt, runoff and the number of days when bare ice, free of snow, is exposed to the Sun's radiative force.

Both Massoud and Abdullah hinted yesterday that he would consider re-entering the race if conditions for a runoff vote were made fairer.

Constructed wetlands around the house and the inclusion of a green roof further help to increase energy efficiency and manage water runoff.

Runoff pollution of traffic and commercial areas was more serious than that of cultural educational areas.

But officials results said Mr. Tsvangirai did not win outright, and he withdrew from a runoff because of state-sponsored violence.

Soil moisture is an important part of the soil, and, is an important factor to impact plant and crop growth, and, runoff.

This effect is again the result of increased runoff and subsurface movement through saturated soils around improperly sited septic tanks.

Adopting intercepting measure and controlling first flush pollution was the key of controlling storm runoff pollution from urban areas.

The amount of nutrient input with rainfall in forest land was more than the amount of runoff output.

Although the model seems to be simple, it can reflect the physical mechanism of rainfall-runoff process.

Flush floods are a perfect example; sudden storms unleash a torrential downpour, the runoff moves with a surprising force.

runoff impeller (centrifugal impeller) of liquid along the vertical axis and the direction of outflow impeller.

In conclusion, the water saving irrigation regimes can improve rainfall utilization and reduce surface runoff as well.

But those near the main Hawaiian island population centers are under pressure from sediment found in runoff, overfishing and invasive algae.

A new combined forecasting method is used for roll forecast of the runoff during the year and the schedule of future months is amended.

A modified ANN model is proposed and developed by using the output of the total runoff linear response ( TLR ) model as the model input.

the regional differences of the runoff cost of sediment control of integrated measures in different scale basins also are obvious.

Abdullah hinted he would consider re-entering the race if conditions for a runoff were made fairer.

But a UN spokesman said: "It's difficult to see how you can have a runoff with only one candidate. "

French conservative president-elect Nicolas Sarkozy says his runoff election victory Sunday has given him a clear mandate for change.

Parameters needed to be calculated in each sub basin are precipitation, evaporation, surface runoff, flow in the ground and soil moisture.

Pollutants like industrial waste, sewage runoff, overpopulation and agriculture discharges all make for quite a toxic brew.

Farming is possible only in valleys fed by glacial runoff, and these are becoming scarcer as glaciers disappear due to warming.

In this paper, the flood risk is zoned by means of reason analysis in consideration of meteorology, runoff and topography .

The city recently enlarged culverts along its highways so storm runoff would be less likely to wash out roads.

Your landscape designer will calculate slopes and check soil types to size and plan runoff and drainage control for your situation.

A saltwater wedge may be found when the sea water encroaches on the estuary during the plentiful runoff and spring tide.

Land use changes can influence hydrological processes including infiltration, groundwater recharge, base flow and runoff in a watershed.

Moreover, the sources are located along the ridge crests, suggesting that the landscape was molded by precipitation and runoff.

Runoff experiments were conducted on the loess slope to determine the hydrodynamic characteristics of the rills .

A new couple model of slope runoff & unsaturated seepage under rainfall condition was shown in the paper.

Across the country, millions of tons of raw sewage, industrial waste and fertilizer runoff have turned lakes into algae-covered cesspools .

Leveling hilly land into terraces, which slows the rate of runoff, allows more water to soak into the soil.

To keep out water from rain and runoff, closed facilities must have surface liners of the same type as that used on the bottom and sides.

The results showed that the initial time of runoff decreased with the increase of slope gradient.

It may conclude that the grass coverage and slope have significant influence on runoff resistance of hilly slope- bullied surface.

Tannin-rich runoff from Fraser's interior stains the sea in the aftermath of a summer storm.

Froude number of slope runoff of road decreased with runoff duration under a certain slope and the different flow discharges.

The conclusion illustrates the feasibility of this method and provides scientific data for runoff forecasting.

The runoff in forested watershed is yielded during a whole year and its amount is mainly connected with precipitation.

Hamid Karzai was declared winner in the presidential election following cancellation of a runoff vote.

this reduces the speed of water runoff and with it, soil erosion.

That eliminated the need for a runoff against his main rival, Raila Odinga, who plans to appeal, claiming election fraud .

The pollutants in the first runoff were in the form of adsorbing on the solid particles.

We've got some runoff from a sewage plant farm. So I'm just going to put that in there.

The results show that the runoff coefficient is easier to reach a steady value for a poor infiltrate surface.

Compared with using 1: 25000 scale gird-DEM only, this method can accurately simulate the surface runoff.

Farmland precipitation runoff nonpoint pollution is one of the most important problems in nonpoint pollution problem.

Only at Titan's "Ontario Lacus, " as one interesting site is called, the runoff consists of liquid hydrocarbons, not water.

Algae, algal bloom Proliferation of algae due to excessive release of nitrogen and phosphorus (e. G. From fertilizer runoff or detergents).

These results document the significant increases in runoff, sediment, and nutrient export associated with residential development.

The runoff in rangeland watershed is yielded only in storm season and its amount is mainly connected with storm intensity.

But if no candidate secures a majority of the nearly 400 lawmakers' votes, a runoff vote between the top two vote-winners will be held.

This pollution comes from agricultural runoff, industrial wastewater, soil erosion, and livestock production, among other things.

Full, preliminary results show the incumbent, Hamid Karzai, capturing enough votes to avoid a runoff with his closest challenger.

In changing trend and influence months, monthly average runoff, precipitation and atmospheric temperature have high correlation.

With a marble temple evaluation for, have suspected prison, a language of runoff white struggled.

Long at the mercy of the monsoons, some Indian farmers are sculpting hillsides to capture runoff, enriching their land and lives.

The results showed that the calculating result from annual dry reason runoff mensuration is agreed to the fact.

This paper analyzes on the reasons of the attenuation of the stream runoff, and makes rough quantitative calculation of the attenuation.

About the impact of forest on the river runoff, many experiments in small areas and small river basins have been made at home and abroad.

The released nitrogen and phosphorus by surface runoff from uplands in the Taihu Lake catchment were investigated in a case study.

Aerial photography can provide valuable information on precipitation, evapotranspiration, interception, and runoff.

The result shows that the land use structure and pattern change result in the increase of surface runoff depth.

The interaction of Slope and rainfall intensity impact the runoff and sand content of the runoff concentration very significant.

The experiment results are meaningful for quantifying runoff and sediment reduction and deepening soil erosion mechanical process also.

Complete election results are pending, but a presidential runoff is expected.

Chapter 5 introduces the forecasting effect of the long term runoff forecasting model.

Constructed wetlands in the riparian zone can decontaminate certain organic pollutants and nutrients in surface runoff effectively.

The influencing factors pollute the whole water environment by sewage water discharge, permeating pollution or surface runoff pollution.

The research also indicated that the loss of the soil nitrogen & phosphorus was a slow and complicated process by surface runoff.

The design of the project is to cross the river bridge in yuyao river bridge on runoff from collecting system design.

In this paper, a method was provided for computing natural annual runoff with a neural network BP model.

Advantages claimed for no-till are that it decreases water evaporation and runoff, soil erosion and topsoil depletion.

On this basis calculation method runoff infiltration for mining cave attain introduced.

The runoff has provided the theoretical and technique foundation for developing the catchment project and catchment irrigation.

Nature implements the rainwater management through an interaction of evaporation, infiltration and runoff.

Raw sewage and fertilizer runoff has fouled the reservoir, nourishing giant algae blooms and threatening downstream water supplies.

The soil solute transport with surface runoff and sediment was greatly impacted by the soil texture and solute character.

Drainage density and stream frequency represent the effectiveness of runoff drainage at a different angle.

Agricultural and sewage runoff frequently contaminates the river and treatment methods are inadequate to handle the pollution.

Therefore, control and treatment of road surface runoff pollutants becomes an outstanding issue in the technology of permeable road surface.

The results show that the model can be used to classify and identity runoff.

Traditional runoff plot is comprised of boundary walls, runoff gathering pit and collecting tanks, usually building with concrete.

Possible routes include accidental spills, runoff from disposal, and effluents of sewage treatment plants, states the EPA action plan.

Non-linear characteristics of precipitation and runoff in sub-alpine of the upper reaches of Yangtze River.

Forest vegetation impacts on runoff and sediment within nested experiment watersheds on the loess plateau in western Shanxi province.

For different stratum , the type of groundwater, replenishment, runoff and discharging condition is different.

Water absorption is greatly reduced, consequently runoff is increased, resulting in accelerated erosion rates.

The runoff causes the low-density water piling along the coast; and the Coriolis effect makes the water flow to the west.

Based on the river having melted ice-snow as the main runoff source, the air temperature plays a leading role in the runoff.

The research shows that there are high correlation and regularity between sunspot and runoff during the magnetic period.

p & s : potable water system in public area , rain , surface runoff , waste water should be discharged in separation.

Soil surface roughness is found to be highly related to the sinuosity, gradient and orientation of runoff path.

The macromolecule polymers take effect on improving soil structure, increasing soil penetration and controlling runoff on slope .

The annual average and rain season precipitation and yearly runoff of the source regions of the Yellow River were analyzed.

To collect and discharge road runoff, a stormwater drainage system shall be designed and implemented on site.

Dynamic Change in Nitrogen Discharge with Runoff from a Small Watershed in Southern Anhui Hilly Areas.

Phosphorus pollution comes from multiple sources, including fertilizer and manure that enter the water through runoff.

A final summit statement takes no position on Zimbabwe's runoff presidential election, which many western government have called a sham.

If anything, there will actually be an embarrassing margin in favor of the opposition in the runoff.

Pre-treatment of storm water runoff promotes wetland ecology, which in turn integrates storm water management with site landscape.

Wetland design can moderate peak flow rate and volume of runoff discharge and sediment deposition during precipitation events.

Downstream, it protects water quantity and quality by reducing excess urban runoff and the associated pollution, erosion, and flooding.

Nonpoint source pollution comes primarily from runoff from cropland, urban areas, and construction and mining sites.

On this basis, a new understanding of western subsystem karst water runoff features was advanced.

The supply of runoff mainly is atmosphere precipitation, ice and snow melting water and ground water.

Some methods like optimize land use, equilibrium fertilization and dispose surface runoff could low the risk of N, P loss effectively.

The yearly uneven degree of runoff distribution in Yulin River Catchment was deeper than Xinlin River Catchment.

The security problems for water resources in Beijing were analyzed from the change of annual runoff frequency distribution in the river.

Algal blooms trigger by eutrophication due to Nitrogen runoff choke river ecosystems.

Bamboo household full of deep shut runoff moss and hibiscus fall for dawn to open.

The calculated value based on the several storm-runoff contamination concentrations was less than the annual non-point pollution loading.

Runoff is also governed by the number and the length of streams in the basin.

they also need to make sure untreated runoff from stock areas and fertilized fields does not enter rivers and lakes.

Based on the supplying resources, ground water was considered as the primary resource to the main runoff in the freezing period.

The analysis on M (V) curve showed that priority should be given to the interception of TN and COD in storm runoff.

This model is composed of two parts: runoff yielding module and water routing module.

A runoff election is supposed to be held two weeks after the final results are certified.

However, these zones may grow larger with the additional nutrient inputs from agricultural runoff.

We are reducing pollution, reducing the amount of pollutants coming in, including things like agricultural runoff.

This runoff , of course, was absorbed by the accumulated soils of the farm plots.

The major way for the pollution into the lake is surface runoff, sediment release and rainfall.

Roof gutters and downspouts-- Gutters collect roof runoff and channel it to downspouts.

Agricultural non-point source pollution and runoff had close linearity correlation in the River watershed.

The man-made lake was in the Ouachita National Forest, so development around it, with the attendant pollution runoff, was limited.

On Earth Day, her organization developed green patches for kitchen gardens, using runoff from public water pumps.

It has two sub-modules, natural runoff module and human activities module.

Basically, as soil surface roughness increase, the runoff coefficient and runoff rate decrease.

consequently runoff is increased, resulting in accelerated erosion rates.

The correlation of erosion quantity with rainfall energy and runoff energy is linear through regression.

The natural runoff of the Hanjiang River had a negative trend in the past 45 years and rainfall influenced runoff significantly.

Fertilizer-laden runoff triggers explosive planktonic algae growth in coastal areas.

Marine life is also harmed by agricultural waste, chiefly runoff containing chemical fertilizers and pesticides.

Annual precipitation had significant effects on the annual runoff coefficient.

The influence of slope gradient on the variation rule and total amount of runoff was hardly significant.

The urban rainfall runoff pollution originates from the precipitation, the urban surface and the drainage system.

The results show that the KW-GIUH model coupled with the time-varying PCA provides good performances in runoff simulation.

Under the same soil texture, as antecedent soil moisture increased, infiltration rate decreased and runoff intensity increased.

Through regression, we found runoff energy cut rate present logarithm relevant to rainfall energy.

The rainfall energy is the essence to result in sediment detachment, and the runoff energy is the conveyer for erosion sediment.

For high intensity rainfalls, runoff amount remained stable as rainfall stopped halfway.

Through investigation and site researches, soil erosion and water runoff in three typical small watersheds in western Guangtong are studied.

Uncertainties in Precipitation and Their Impacts on Runoff Estimates .

The sewer system is ancient and poorly designed, combining storm water runoff with sewage in the same piping system.

Further measures to reduce runoff flow are suggested to control soil mineral nitrogen loss by surface runoff.

However, problems like urban runoff and sewer overflows continue to trouble local waterways.

The influence of forest land covering rate is bigger than grass obviously to the amount of runoff.

Agricultural runoff and pollution from power plants are adding extra nitrogen to many bogs in North America.

The final balance of power in the Majlis will not be known until a runoff election in May.

President Robert Mugabe continues to insist the presidential runoff poll will be held Friday as planned, even though Mr.

The species has become endangered as a result of pollution and industrial runoff.

The tees, landing areas and greens are all placed away from where runoff will collect.

You'd reduce water use and end runoff by recycling water in a closed irrigation system.

The runoff election campaign has been overshadowed by violence and intimidation, especially in rural areas.

Finger-like shoreline of Norris Lake lies exposed as floodtaming Norris Dam, part of TVA, lowers reservoir level for winter runoff.

Also, the regression model of soil erosion and runoff velocity is developed by statistics method in this paper.

Based on the introduction of approximate entropy and human activity effect E, runoff series complexity of the Yellow River was analyzed.

But river runoff in Africa can often change dramatically from one season to the next.

As more water accumulates, it forms runoff channels called rills, which further displace soil.

The results show that straw mulch increase water infiltration, reduce runoff and soil erosion.

Sworn in on Peru's Independence Day, the49-year-old former army lieutenant colonel won office in a runoff vote in June.

Soil conservation can greatly influence runoff by reducing sediment into river.

Other achenes are carried away by wind or runoff water and germinate in runnels.

Hongshui river is the main stream of Xijiang river system of Pearl River basin. Its yearly runoff accounts for 39% of Pear river basin.

I got 44 percent of the vote, with Senator Rainwater barely edging out David Stewart for a spot in the runoff, 26 to 25 percent.

Different sized pipes channel hillside runoff into driveway culvert.

With no opposition, Mr Mugabe won 85% of the vote in the runoff, but many were forced to vote for him.

Farmers say they need less rainwater if they use fertilizer trees. The trees reduce water runoff and soil erosion.

shear stress when the pit appeared and the average of the runoff process can be used as soil erosion prediction.

Agricultural runoff can overload coastal waters with nitrogen.

The groundwater is collected from wings to axial lobe in Tian-huan syncline, and runoff is based layer of rock.

Impacts of forest and precipitation on runoff and sediment in Tianshui watershed and GM models.

Builders can help the effort by curtailing the runoff of sediments from construction sites.

Agricultural runoff has created dead zones in the Gulf of Mexico, with oxygen levels too low to support life.

The cultivated field received not only its own share of rainfall but all of the runoff from the catchment.

This material enters the ecosystem mainly through runoff that carries debris.

deep-runoff geothermal water recharged mainly by ancient meteoric water.

Runoff from animal waste has contaminated rivers, especially in places like East Asia.

Effects of afforestation methods on nutrient runoff and fertility quality of red soil.

In Mingyong, surging meltwater has carried away topsoil; elsewhere, excess runoff has been blamed for more frequent flooding and landslides.

This paper analyses the characteristics of runoff and sediment changes since 1950 in the Upper and Middle Yellow River.

so we took feiyunjiang catchment basin as research object , set up rainfall - runoff relation of this basin.

Sediment from runoff on land can cover corals or simply turn the water cloudy, cutting them off from the sunlight they need to survive.

The runoff in the basin mainly affected by the climate factors and the influence of human activity.

Part III, An Analysis of the Characteristics of the Change of Annual the Runoff.

Reduced runoff is increasing the pressure on freshwater resources in Africa.

We are reducing pollution, reducing theamoutamount of pollutants coming in, including things like agricultural runoff.

Since the 20th century , research on forest and slope-runoff yield has achieved a great progress, especial-ly in China are deeper and wider.

Provision of necessary surface drainage systems to collect road runoff.

Runoff is an essential factor for regional soil and water loss.

Mystic energy penetrated the miners' slag pits and animated the sludgy runoff there.

The routes of underground water supply, runoff and drainage in tunnel zone are analyzed.

International observers said Sunday's runoff election was Peru's cleanest vote in years.

A runoff on November 8th between Ms Johnson Sirleaf and Winston Tubman, a former UN ambassador to Somalia, could boil down to rice.

The first , the gross water resource of overland runoff and rainfall is very little, moreover, evaporation always exceeds rainfall.

Make sure that plants have adequate spacing to allow root structures and soil to absorb runoff.

That denied him the majority needed to avoid a runoff election.

It cnn said that the rainfall plays a predominant role in the change of total runoff in the East River basin.

Based on analysis of roof runoff quality in Shanghai, the treatment efficiency by sedimentation and filtration was investigated.

Other nonpoint source pollution comes from agricultural runoff, construction sites, and other land disturbances, as discussed in Chap. 11.

With no opposition, Mr Mugabe won85%of the vote in runoff, but many were forced to vote for him.

The ANSWERS model is used to simulate runoff, erosion and pollutant transportation.

Rice paddies dose actively in retaining runoff but slope land dose negatively.

Opposition leader appeals to voters amid fears of violence in Zimbabwe runoff.

The TN loss fluctuated with rainfall-runoff, but the TP loss showed an increasing trend year by year.

High-altitude photos show a brown ring of soil and human waste runoff hugging the coastline.

It is significant for us to understand and to control urban storm runoff.

Particulate phosphorus is the main form in runoff water.

The catchment area played a dominant role in determining surface runoff.

In India's wheat-growing regions, for example, pesticide and fertilizer runoff have polluted up to 40% of the available water supply.

The incumbent is currently above the 50 percent threshold needed to avoid a runoff election.

This article introduces the technology of processing rainstorm runoff by making use of constructed wetlands.

The results show that the low and high flow periods are stable and the annual runoff shows increasing trend after 1987.

This showed that the decreasing of runoff coefficient can be attributed to the development of terrace in study region.

If this runoff water can be accumulated it can be used for farming .

and (3) in this basin, forestry and grass have less influence on runoff than terrace and dam, while control the same sediment.

The sediment load and flood season runoff has great correlativity.

So, it is practical to use the sequential clustering and Markov model to forecast the river runoff.

Runoff of untreated livestock waste adds to pollution in rivers and lakes.

The runoff flows directly into the river via waste pipes, she added.

You can adapt these to both control runoff and help planted areas retain water better.

The result shows that the rainfall and land use both have a great impact on the runoff, sediment and water quality.

Rainfall runoff regulation is an important way to solve the problem of drought and soil erosion in the Loess Plateau.

To achieve more power benefit, runoff description model suitable to the watershed should be developed using all kinds of information.

And the cutting rate to runoff energy is falling with rainfall energy increased.

Urban surface runoff is the second large non-point pollution source next to agriculture.

A reservoir for collecting surface drainage or runoff.

Runoff from two similar drainage areas in the Piedmont physiographic region of North Carolina was monitored simultaneously for 5. 6 years.

A rare dry-season downpour produced the thundering runoff.