Author
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Hagen, Lawrence |
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Submitted to: Meeting Abstract
Publication Type: Other Publication Acceptance Date: 7/1/2004 Publication Date: 7/19/2004 Citation: Hagen, L.J. 2004. Dust deposition near an eroding source field. 2004 Soil and Water Conservation Society Annual Conference, Saint Paul, Minnesota, July 24-28, 2004. Poster Presentation. Interpretive Summary: Poster presentation: Soil and Water Conservation Society 2004 Annual Conference, Saint Paul, Minnesota, July 24-28, 2004. Technical Abstract: Dust deposition samplers were constructed from inverted flying disks attached to unilets and electrical conduits. Wind tunnel tests showed a fine screen placed over a porous mat in the bottom of each sampler was necessary to prevent blowout of trapped dust particles. Twelve samplers were installed along 3 transects near a vegetated surface within 200 m of a 6-ha bare, Amarillo fine sandy loam, source field at Big Spring, TX. Dust deposition data from individual storms were collected for 3 erosion seasons. Both particle size and deposition mass of dust decreased with distance from the source field. Model predictions of dust deposition were compared to measured for a number of erosion events. Based on these results, estimates of pollution potential from dust deposition near source fields are discussed. |
