Agricultural nonpoint source pollution : watershed by William F. Ritter, Adel Shirmohammadi

By William F. Ritter, Adel Shirmohammadi

Content material: Hydrology / Mary Leigh Wolfe -- Soil erosion and sedimentation / Mark A. Nearing, L. Darrell Norton, and Xunchang Zhang -- Nitrogen and water caliber / William F. Ritter and Lars Bergstrom -- Phosphorus and water caliber affects / Kenneth L. Campbell and Dwayne R. Edwards -- insecticides and water caliber affects / William F. Ritter -- Nonpoint resource toxins and farm animals manure administration / William F. Ritter -- Irrigated agriculture and water caliber affects / Blaine R. Hanson and Thomas J. Trout -- Agricultural drainage and water caliber / William F. Ritter and Adel Shirmohammadi -- Water caliber versions / Adel Shirmohammadi ... [et al.] -- top administration practices for nonpoint resource pollutants keep an eye on / Saied Mostaghimi ... [et al.] -- tracking / William L. Magette

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And Meyer, L. , 4, 1179, 1968. 30. Novotny, V. and Olem, H. Water Quality: Prevention, Identification, and Management of Diffuse Pollution, Van Nostrand Reinhold, New York, 1994. 31. Woolhiser, D. A. and Liggett, J. , Unsteady one-dimensional flow over a planeā€”the rising hydrograph, Water Resources Research, 3, 753, 1967. 32. Sherman, L. , Stream flow from rainfall by the unit-graph method, Eng. , 108, 501, 1932. 33. Slack, D. , Modeling infiltration under moving sprinkler irrigation systems, Trans.

Rawls, W. , Stone, J. J. and Brakensiek. D. , Infiltration, in Water Erosion Prediction Project: Hillslope Profile Version, Lane, L. J. and Nearing, M. , National Soil Erosion Laboratory Report No. , USDA-ARS, West Lafayette, IN, 1989. 52. Brakensiek, D. L. and Rawls, W. , Agricultural management effects on soil water processes Part II. Green-Ampt parameters for crusting soils, in Proc. Specialty Conf. Adv. Irrig. , ASCE, Jackson, WY, 1983. 53. Rawls, W. J. and Brakensiek, D. , Comparison between Green-Ampt and Curve Number runoff predictions, Trans.

The time period considered depends on the objectives of the model, and thus may range from a small portion of a single storm event to a long-term average annual value. The Universal Soil Loss Equation (USLE),5 for example, is an empirical model that provides estimates of average annual soil loss. The natural runoff plots used to develop the USLE were laid out on essentially uniform slope elements, whereby sediment deposition was considered to be negligible. In other words, the USLE does not address deposition or sediment yield; it is strictly a soil loss model.

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