Next Article in Journal
Ambient Vibrations Measurements and 1D Site Response Modelling as a Tool for Soil and Building Properties Investigation
Next Article in Special Issue
Effects of pH-Induced Changes in Soil Physical Characteristics on the Development of Soil Water Erosion
Previous Article in Journal
Mineralogy of Non-Silicified Fossil Wood
Previous Article in Special Issue
Vadose Zone Modeling in a Small Forested Catchment: Impact of Water Pressure Head Sampling Frequency on 1D-Model Calibration
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Geosciences 2018, 8(3), 86; https://doi.org/10.3390/geosciences8030086

Comparison of Geometric and Volumetric Methods to a 3D Solid Model for Measurement of Gully Erosion and Sediment Yield

1
Department of Geosciences, East Tennessee State University, Johnson City, TN 37614, USA
2
Department of Mechanical, Aerospace and Biomedical Engineering, The University of Tennessee, Knoxville, TN 37996, USA
*
Author to whom correspondence should be addressed.
Received: 30 January 2018 / Revised: 23 February 2018 / Accepted: 28 February 2018 / Published: 3 March 2018
(This article belongs to the Special Issue Soil Hydrology and Erosion)
Full-Text   |   PDF [2733 KB, uploaded 3 March 2018]   |  

Abstract

Gully erosion is a global problem that degrades land and reduces its utility for agriculture, development, and water quality. Quantification of sediment yield and control of sediment sources is essential for environmental protection. Five methods to evaluate erosion rates and sediment yield on an east Tennessee, USA, hillslope were compared: (1) physical measurement by removal of accumulated sediment using 10 L buckets; (2) repeated measurement of erosion pins in gully (erosional) and delta (depositional) areas; (3) geometric model using a combination trapezoidal prism-cylinder segment; (4) geometric model using a series of trapezoidal pyramids; and (5) 3D solid computer modeling. The 3D solid model created in SolidWorks was selected as the reference model and all other methods overestimated sediment yield to varying degrees. Erosion pin methods overestimated sediment yield by 368% in deltas and 123% in gullies. Volumetric measurement of sediment using buckets overestimated sediment yield by 160% due to void space in the buckets. The trapezoidal prism-cylinder segment model overestimated sediment yield by 66% and the trapezoidal pyramids method overestimated sediment yield by 5.7%. For estimation of sediment trapped behind an elliptical or circular silt fence dam, use of the trapezoidal pyramid method provides a good approximation comparable to 3D solid computer modeling. View Full-Text
Keywords: sediment yield; gully erosion; sediment volume; silt fence; 3D solid model sediment yield; gully erosion; sediment volume; silt fence; 3D solid model
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Luffman, I.; Nandi, A.; Luffman, B. Comparison of Geometric and Volumetric Methods to a 3D Solid Model for Measurement of Gully Erosion and Sediment Yield. Geosciences 2018, 8, 86.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Geosciences EISSN 2076-3263 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top