Transcription of Wind Erosion: Problem, Processes, and Control
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Wind Erosion: Problem, Processes, and Control
Wind erosion : Problem, Processes, and Control 2 John Tatarko Soil Scientist USDA-Agricultural Research Service Engineering and Wind erosion Research Unit 1515 College Avenue Manhattan, Kansas 66502 Phone: 785-537-5542 Email: Table of Contents Introduction .. 3 The Problem .. 4 The Dust Bowl .. 5 Damage from Wind erosion .. 5 Wind erosion Processes .. 7 Wind .. 7 Prevailing Wind erosion Direction and Critical Wind erosion Period .. 8 Phases of Particle Movement .. 9 Modes of Transport .. 10 Wind erosion Control .. 13 Vegetation or Vegetative Residues .. 13 Permanent Vegetative Cover .. 14 Surface Roughening and Maintaining Stable Aggregates .. 15 Cross Wind Strip Cropping .. 18 Barriers .. 18 Reshape the Land .. 22 Emergency Wind erosion Control .. 23 Wind erosion Models .. 27 Research .. 29 Summary .. 29 Wind erosion Resources .. 30 General Wind erosion 30 Wind erosion Prediction System .. 30 NRCS WEQ Site.
Wind Erosion Processes ... This protection allows particles eroding from the upper positions to be trapped in the lower positions. Vegetative material, either live or dead, also absorbs wind energy near the soil surface and can trap moving soil particles.
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