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Related Concept Videos

Resistivity01:22

Resistivity

3.6K
When a voltage is applied to a conductor, an electrical field is generated, and charges in the conductor feel the force due to the electrical field. The current density that results depends on the electrical field and the properties of the material. In some materials, including metals at a given temperature, the current density is approximately proportional to the electrical field. In these cases, the current density can be modeled as:
3.6K
  1. Home
  3. Research Domains
  5. Environmental Sciences
  7. Soil Sciences
  9. Soil Physics
  11. Soil Erosion Resistivity Metric For Sub-watershed Prioritization.
  1. Home
  3. Research Domains
  5. Environmental Sciences
  7. Soil Sciences
  9. Soil Physics
  11. Soil Erosion Resistivity Metric For Sub-watershed Prioritization.

Related Experiment Video

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management
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Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management

Published on: September 12, 2017

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Soil erosion resistivity metric for sub-watershed prioritization.

Hamed Beigi1, Seyed Hamidreza Sadeghi1, Mehdi Vafakhah1

  • 1Department of Watershed Management Engineering, Faculty of Natural Resources, Tarbiat Modares University, Noor, Mazandaran, Iran.

The Science of the Total Environment
|August 31, 2025

View abstract on PubMed

Summary
This summary is machine-generated.

This study introduces soil erosion resistivity to prioritize watershed management. It reveals that areas with persistently high erosion, not just high rates, require targeted conservation for effective soil and water protection.

Keywords:
Integrated watershed managementSoil conservationSpatiotemporal variationWatershed prioritization

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Laboratory and Field Protocol for Estimating Sheet Erosion Rates from Dendrogeomorphology
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Laboratory and Field Protocol for Estimating Sheet Erosion Rates from Dendrogeomorphology

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Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management
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Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon
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Laboratory and Field Protocol for Estimating Sheet Erosion Rates from Dendrogeomorphology
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Laboratory and Field Protocol for Estimating Sheet Erosion Rates from Dendrogeomorphology

Published on: January 7, 2019

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Area of Science:

  • Environmental Science
  • Hydrology
  • Soil Science

Background:

  • Soil erosion significantly impacts soil and water quality globally.
  • Understanding temporal and spatial erosion patterns is crucial for effective watershed management.
  • Existing methods often lack the precision needed for targeted mitigation strategies.

Purpose of the Study:

  • To introduce and apply a novel metric, soil erosion resistivity, for prioritizing sub-watersheds.
  • To assess temporal stability of soil erosion in Iran's Shazand Watershed.
  • To compare resistivity-based prioritization with conventional erosion rate-based approaches.

Main Methods:

  • Employed the Revised Universal Soil Loss Equation (RUSLE) to estimate soil erosion.
  • Introduced soil erosion resistivity, calculated using the normalized coefficient of variation, to assess temporal stability.
  • Classified sub-watersheds into five stability categories based on resistivity values.

    • Main Results:

    • Overall soil erosion showed a declining trend, with a notable increase in 2018 due to extreme rainfall.
    • The mean annual soil erosion rate was 14.94 t ha⁻¹ y⁻¹.
    • Resistivity-based prioritization identified sub-watershed 11 as the highest priority, highlighting areas with persistent high erosion.

    Conclusions:

    • Soil erosion resistivity offers a more nuanced approach to identifying critical areas for conservation compared to erosion rates alone.
    • Prioritizing sub-watersheds based on resistivity enables more precise and effective targeting of management efforts.
    • Sustainable practices and focused management in vulnerable regions are essential for mitigating soil erosion and degradation.