Investigation potential sedimentation geomorphology facies with usage wind erosion meter and IRIFR. E. A model ( case study, Kashan- Aran)

Document Type : Original Article

Authors

1 Ph. D. Student, Faculty of Natural Resources, University of Tehran, Karaj, Iran

2 Assistant Professor, Faculty of Natural Resources, University of Tehran, Karaj, Iran

3 Emeritus Professor, Faculty of Natural Resources, University of Tehran, Karaj, Ira

4 Assistant Professor, International Desert Research Center, University of Tehran, Tehran, Iran

Abstract

In this study, to evaluate the different geomorphic facies sediment yield in Aran province, wind erosion meter and IRIFR model was used. The results of wind erosion meter showed that the most speed of threshold in natural condition is belonging to hard crust and dried clay plain with a speed of 13m/s, then Puffy and clay-agricultural lands with a speed of 12 m/s, and the lowest threshold speed is 6/5 m/s related to fine-grained loamy - sandy soils of pediment that due to lack of the adhesion, flat, and smooth surface and wind shear impact and blown with wind. The results of wind erosion intensity with wind erosion meter also showed that the clay plains and Puffy lands facies are most stable with sediment of 0 to 175/2 tone/km 2 / yr which sorted erosion in class I, and sand sheet with the graveled covered, clay plain and sand dunes are the most sensitive facies, that with 5450/09 to 5517/04 tone/km2/ yr sediment equivalent classified in IV erosion class. While the results of the IRIFR model showed that the most stable facies are facies agricultural lands with 415/1 ton/km2/yr sediment erosion that classified in the erosion class II and facies sand sheet and sand dune the most sensitive facies, that with 1168/6 ton/km2/ yr sediment equivalent classified in IV erosion class.

Keywords

Desert Management
Volume 4, Issue 8 - Serial Number 8
9 Articles
March 2017
Pages 70-83

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History

  • Receive Date: 19 August 2015
  • Revise Date: 23 January 2017
  • Accept Date: 26 January 2017

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