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ARS Home » Plains Area » Lubbock, Texas » Cropping Systems Research Laboratory » Wind Erosion and Water Conservation Research » Research » Publications at this Location » Publication #361611

Title: PM10 emissions from natural surfaces in Southwestern North America

item Van Pelt, Robert - Scott
item Tatarko, John
item CHANG, CHUNPING - Hebei University
item WANG, RENDE - Hebei University
item GILL, THOMAS - University Of Texas - El Paso

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 2/22/2019
Publication Date: 3/5/2019
Citation: Van Pelt, R.S., Tatarko, J., Chang, C., Wang, R., Gill, T. 2019. PM10 emissions from natural surfaces in Southwestern North America. Meeting Abstract. Presentation. Coolidge, AZ on March 5, 2019.

Interpretive Summary:

Technical Abstract: Native plant communities throughout the Southwestern United States are subject to increased abiotic stress due to climate change. As native grass cover is replaced by shrubs, more bare soil surface is susceptible to erosion by wind. The dust record for the last 20 years indicates that wind erosion and resultant fugitive dust emissions are increasing over broad areas of the Southwest. We used a Portable In-Situ Wind Erosion Laboratory (PI-SWERL) to assess and compare the erodibility and dust emissions from multiple undisturbed and disturbed soil surfaces in Texas, New Mexico, Arizona, and Colorado. We found a wide range of threshold friction velocities and emissivities apparently controlled by soil texture and disturbance state.