Agricultural Chemicals in Surface Runoff, Ground Water, and Soil: I. Endrin

1973 ◽  
Vol 2 (4) ◽  
pp. 463-466 ◽  
Author(s):  
G. H. Willis ◽  
R. A. Hamilton
Keyword(s):  
Ground Water ◽  
Surface Runoff ◽  
Agricultural Chemicals

ВОДНЫЙ РЕЖИМ ОРОШАЕМЫХ СОЛОНЦОВЫХ КОМПЛЕКСНЫХ ПОЧВ И ОСОБЕННОСТИ ЕГО РЕГУЛИРОВАНИЯ

2020 ◽  
Author(s):  
Valery Yashin
Keyword(s):  
Soil Moisture ◽  
Ground Water ◽  
Irrigation Water ◽  
Surface Runoff ◽  
Root Zone ◽  
Irrigation Methods ◽  
Salt Flats

Представлены материалы исследований формирования режима влажности и динамики грунтовых вод орошаемых солонцовых комплексных почв при различных способах полива, проведенные в Волгоградском Заволжье. Установлена значительная неравномерность распределения влажности почвы при поливах дождеванием. Отмечается поверхностный сток по микрорельефу до 30% от поливной нормы, что приводит к недостаточности увлажнения корневой зоны на солонцах и переувлажнению почв в понижениях микрорельефа и потере оросительной воды на инфильтрационное питание грунтовых вод.The article presents the materials of research on the formation of the humidity regime and dynamics of ground water of irrigated saline complex soils under various irrigation methods, conducted in the Volgograd Zavolzhye. A significant unevenness in the distribution of soil moisture during irrigation with sprinkling has been established. There is a surface runoff on the microrelief of up to 30% of the irrigation norm, which leads to insufficient moisture of the root zone on the salt flats and waterlogging of the soil in the microrelief depressions and loss of irrigation water for infiltration feed of ground water.

Design, Construction, and Operation of Tilted Beds to Simulate Agricultural Runoff in Vegetative Filter Strips

1997 ◽  
Vol 11 (3) ◽  
pp. 618-622 ◽  
Author(s):  
Wondi Mersie ◽  
Cathy A. Seybold
Keyword(s):  
Surface Runoff ◽  
Sandy Loam ◽  
Agricultural Runoff ◽  
Clay Loam ◽  
Agricultural Chemicals ◽  
Runoff Water ◽  
Vegetative Filter Strips ◽  
Filter Strips ◽  
Subsurface Lateral Flow ◽  
Design Construction

This paper describes the design, construction, and operation of tilted beds to investigate the effectiveness of vegetative filter strips (VFS) in removing agricultural chemicals from runoff water. The beds are designed to catch surface runoff, leachate, and subsurface lateral flow. Switchgrass was established on beds filled with Cullen clay loam or Emporia sandy loam. Switchgrass establi shed on Cullen clay loam beds reduced surface runoff by 60% and by 11% in sandy loam containing switchgrass compared to respective bare soils. Infiltration was 64, 26, 17, and 8% for clay loam with switchgrass, clay loam without switchgrass, sandy loam with switchgrass, and sandy loam without switchgrass, respectively.

Agricultural Chemicals in Ground Water: Suggestions for The Environmental Protection Agency Strategy

1987 ◽  
Vol 30 (3) ◽  
pp. 23-27
Author(s):  
Dennis Shields
Keyword(s):  
Ground Water ◽  
Environmental Protection ◽  
Environmental Protection Agency ◽  
Nitrate Contamination ◽  
Protection Agency ◽  
Agricultural Chemicals ◽  
Potential Health ◽  
Common Reference ◽  
Course Of Action ◽  
Shared Goal

Ground water, a hidden resource whose volume is over 50 times that of the nation's surface water, was once thought to remain forever pure. People had little reason not to believe that the soil would naturally purify water returning to an aquifer. It was not until the late 1970s when the Love Canal and Times Beach incidences redirected public opinion and touched off a nationwide concern for the protection of ground water. In August 1984, the Environmental Protection Agency (EPA) issued a Ground Water Protection Strategy to "provide a common reference for responsible institutions as they work toward the shared goal of preserving, for current and future generations, clean ground water for drinking and other uses, while protecting the public health of citizens who may be exposed to the effects of past contamination."1 More specifically, "EPA will increase efforts to protect ground water from pesticide and nitrate contamination." In response, the EPA's Office of Pesticide Protection reviewed existing information on the extent and causes of pesticide contamination, its potential health hazards, existing statutory authorities, and programs available to aid state policy makers. An increased interest in solving problems associated with pesticides in ground water has resulted in the EPA's current development of a national strategy on Agricultural Chemicals in Ground Water. This strategy will outline the EPA's general course of action in addressing the problem of pesticides in ground water during the next 5 to 10 yr. The purpose of this report is to provide EPA with suggestions to be considered in the formulation of the strategy.

Accounting for Temporal Variations in Large-Scale Retrospective Studies of Agricultural Chemicals in Ground Water

1990 ◽  
Vol 10 (1) ◽  
pp. 142-146 ◽  
Author(s):  
Susan K. Liddle ◽  
Roy W. Whitmore ◽  
Robert E. Mason ◽  
W. Joseph Alexander ◽  
Larry R. Holden
Keyword(s):  
Ground Water ◽  
Large Scale ◽  
Retrospective Studies ◽  
Temporal Variations ◽  
Agricultural Chemicals

scholarly journals Agricultural chemicals in Iowa's ground water, 1982-95: What are the trends?

Fact Sheet ◽  
1997 ◽  
Author(s):  
Dana W. Koplin ◽  
George Hallberg ◽  
D. A. Sneck-Fahrer ◽  
Robert Libra
Keyword(s):  
Ground Water ◽  
Agricultural Chemicals
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