2 edition of Impact of irrigation on the dynamics of nitrate movement in a shallow sand aquifer found in the catalog.
Impact of irrigation on the dynamics of nitrate movement in a shallow sand aquifer
Walton R. Kelly
by Illinois State Water Survey, Dept. of Natural Resources in Champaign, Ill
Written in English
Includes bibliographical references (p. 35-38).
|Statement||by Walton R. Kelly and Chittaranjan Ray.|
|Series||Research report ;, 128, Research report (Illinois State Water Survey) ;, 128.|
|LC Classifications||GB705.I3 A3 no. 128|
|The Physical Object|
|Pagination||58 p. :|
|Number of Pages||58|
|LC Control Number||00457125|
Effects of Shallow Groundwater Management on the Spatial and Temporal Variability of amounts of surface irrigation impact the extent to which crops will utilize shallow groundwater. Judicious use of deficit irrigation in combination with shallow ground-water management is necessary to achieve optimal re-sults (Ayars et al., ). (See attached Vadose Zone Nitrate Study.) The vadose zone sampling found that to pounds of nitrogen per acre is found in the vadose zone. Due to recharge from over irrigation and rainfall events this nitrogen is moving into the aquifer. Currently another vadose zone study is being completed by UNL to assess the movement and fate.
The movement of fresh water from precipitation and snowmelts to rivers, lakes, wetlands, and ultimately, the ocean. Salinization The gradual accumulation of salt in . Nitrate in groundwater is a major concern in agricultural sub-watersheds. This study assessed the impacts of future climate and agricultural land use changes on groundwater nitrate concentrations in an agricultural sub-watershed (Norfolk site) in southern Ontario, Canada. A fully integrated hydrologic model (HydroGeoSphere) was used in combination with the root zone water quality model (RZWQM2.
Agricultural land use and hydrology affect variability of shallow groundwater nitrate concentration in South Florida A. Ritter,1,2 R. Munoz-Carpena,˜ 1*,3 B. Schaffer4 3 1 Agricultural and Biological Engineering Dept. University of Florida, Frazier . United States Environmental Protection Agency Robert S. Kerr Environmental Research Laboratory Ada OK Research and Development EPA//S/ June *> EPA Project Summary Movement of Bacteria Through Soil and Aquifer Sand M. Alexander, R.J. Wagenet, P.O. Baveye, J.T. Gannon, U. Mingelgrin, and Y. Tan The transport of microorganisms In soils Is of major Importance for.
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Nitrate Dynamics under Cyclic Irrigation Pumpage. examination of the dynamics of ﬂow and nitrate plume move- ics of nitrate movement in a shallow sand aquifer.’’ Res. Rep. Agricultural activit ies impact on groundwater nitrate pollution.
Impact of Irrigation on the Dynamics of Nitrate Movement in a Shallow Sand Aquifer a. Article. An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt).
Groundwater can be extracted using a water study of water flow in aquifers and the characterization of aquifers is called d terms include aquitard, which is a bed of low permeability along an aquifer, and aquiclude (or aquifuge.
In Tunisia, reclaimed water is increasingly used for irrigation in order to mitigate water shortage. However, few studies have addressed the effect of such practice on the environment. Thus, we attempted in this paper to assess the impact of irrigation with reclaimed water on the nitrate content and salinity in the Nabeul shallow aquifer on the basis of satellite images and data from 53 Cited by: 5.
Differences in the impact of irrigation with freshwater versus wastewater on the underlying shallow groundwater quality were investigated in the Coastal Aquifer of Israel.
Seven research boreholes were drilled to the top-most 3–5 m of the saturated zone (the water table. Nitrate reductions for three ground water catchments were 16%, 63%, and 70% of the NO ~ reaching the aquifer.
conclusion. Shallow Sand Aquifers, Ontario, Canada Injection experiments done in shallow sand aquifers located in an agricultural area of southwestern Ontario provided good evidence for denitrification in NO.
enriched ground water Cited by: 85 and nitrate concentrations in shallow wells is discussed. A well network designed to monitor any future changes in nitrate concentrations and other chemical constituents in ground water is described.
Previous Investigations Concentrations of nitrate in ground water that Cited by: 5. the combined effect of nitrate intake from food and water.
Nevertheless, the results are a cause for concern because the adverse effects are associated with nitrate concentrations as low as mg/L (5). Relative background concentration of nitrate in shallow groundwaters of the U.S.
is about 1 mg/L (6). Differences in the degree of confinement, redox conditions, and dissolved organic carbon (DOC) are the main factors that control the persistence of nitrate and pesticides in the Upper Floridan aquifer (UFA) and overlying surficial aquifer beneath two agricultural areas in the southeastern US.
Groundwater samples were collected multiple times from 66 wells during – in a study area in. Understanding the nutrient value of nitrate in irrigation water often leads to confusion. Laboratories commonly report nitrate concentration of water samples in parts per million of nitrate (PPM NO 3).However, as shown in Table 1, the reported nitrate value must be multiplied by to express it in equivalents of nitrogen (PPM NO 3-N).This conversion is required because the nitrate molecule.
Relating Nitrogen Sources and Aquifer Susceptibility to Nitrate in Shallow Ground Waters of the United States Bernard T. Nolan Abstract Characteristics of nitrogen loading and aquifer susceptibility to contamination were evaluated to determine their influence on.
indicate that concentrations of nitrate in shallow ground water are significantly different (p = ) in agricultural areas than in undeveloped areas in both aquifer systems. Concentrations of nitrate nitrogen exceeded the MCL in water from more than 33 percent of the 60 shallow wells in agricultural by: A combined hydrochemical and stable isotope approach was used to investigate the origin of nitrate in the shallow unconfined groundwater of Kharkiv city, Eastern Ukraine.
The contamination was investigated in the context of land use within the catchment area. The observed enrichment of sulfate, chloride and nitrate suggests significant groundwater contamination in the shallow urban aquifer Cited by: The Memphis Sand aquifer: A buried treasure.
The aquifer supplying Memphis with high-quality drinking water is in good shape for now, but future threats loom. Journal of Hydrology, () Elsevier Science Publishers B.V., Amsterdam  CORRELATION OF NITRATE PROFILES WITH GROUNDWATER AND SEDIMENT CHARACTERISTICS IN A SHALLOW SANDY AQUIFER JORN KRISTIAN PEDERSEN*, POUL LOGSTRUP BJERG and THOMAS H.
CHRISTENSEN Department of Environmental Cited by: • Aquifer is mostly sand and gravel. • Average depth to water table is 22 feet ( m). • Average well depth is 50 feet (15 m). • Average reported well yield is 19 gpm ( L/sec). • Regional ground water flow is south into Shuswap Lake. • Estimated ground water movement is 10 feet to 30 feet per day (Golder ).
Study Objectives. Suarez, D.L., Impact of agricultural practices on groundwater salinity. Agric. Ecosystems Environ., The impact of agricultural practices on water quality has been examined predominantly with an emphasis on surface water. Impacts on groundwater, as compared with surface waters, are much.
 In arid ecosystems, vegetation controls water and nitrate movement in the soil, reducing solute transport to aquifers. Here we analyzed nitrate distribution and transport throughout the soil profile and to the groundwater under different ecologic (vegetation type) and topographic (upland/lowland) situations across sand dune ecosystems with shallow water tables, subject to Cited by: Somers, G.
and Savard, M. () Dynamics of nitrate transfer from agricultural soils to aquifers inferred from stable isotopes. In: Proceedings of the American Water Works Association Inorganic Contaminants Workshop, Albuquerque, NM.
January American Water Works Association, Denver, CO. On CD ROM Session MON3 1. Hydrogeology (hydro-meaning water, and -geology meaning the study of the Earth) is the area of geology that deals with the distribution and movement of groundwater in the soil and rocks of the Earth's crust (commonly in aquifers).The terms groundwater hydrology, geohydrology, and hydrogeology are often used interchangeably.
Groundwater engineering, another name for hydrogeology, is a branch. Ground water processes affecting seasonal variations of surface water nitrate concentrations were investigated in an incised first-order stream in an agricultural watershed with a riparian forest in the coastal plain of Maryland.
Aquifer characteristics including sediment stratigraphy, geochemistry, and hydraulic properties were examined in combination with chemical and isotopic analyses of. Purchase Nitrogen Management and Ground Water Protection, Volume 21 - 1st Edition. Print Book & E-Book. ISBNBook Edition: 1.Modeling Nitrate Movement in Sugarbeet Soils under Flood and Drip Irrigation* Florence Cassel Sharmasarkar, Shankar Sharmasarkar, Renduo Zhang, George F.
Vance, Stephen D. Miller, and Mohan J. Reddy1 Abstract Nitrate (NO 3) contamination is a continued global concern in many sugarbeet growing areas under flood irrigation.