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Optimization of parameters affecting organic mulch test to control erosion
Saeed Shojaei1, Mohammad Ali Hakimzadeh Ardakani1, Hamid Sodaiezadeh1
1Department of Management Arid and Desert Regions, College of Natural Resources and Desert, Yazd University, Iran.
Journal of Environmental Management
|August 25, 2019
Summary
This study developed an organic mulch using agricultural byproducts to combat wind erosion in arid lands. The optimized mulch effectively reduced soil erosion and improved soil crust properties.
Area of Science:
- Environmental Science
- Soil Science
- Agricultural Engineering
Background:
- Wind erosion is a significant environmental issue in arid regions, degrading land and impacting ecosystems.
- Organic mulch can mitigate wind erosion by stabilizing soil particles and improving soil structure.
- Developing effective and sustainable mulch solutions is crucial for land restoration in affected areas.
Purpose of the Study:
- To create and optimize an organic mulch formulation for controlling wind erosion and reducing environmental pollution.
- To investigate the effects of different organic materials (straw, biosolids, manure, blackstrap) on mulch performance.
- To enhance soil crust properties, specifically thickness and penetration resistance, using the developed mulch.
Main Methods:
- Utilized Response Surface Methodology (RSM) with Central Compound Design (CCD) for optimizing the mulch composition.
- Investigated the impact of varying concentrations of straw, biosolids, manure, and blackstrap on wind erosion control.
- Assessed mulch effectiveness by measuring crust thickness and penetration resistance.
Main Results:
- The optimized mulch formulation demonstrated significant reductions in wind erosion.
- Increased concentrations of straw, biosolids, and manure enhanced crust thickness and penetration resistance.
- Higher blackstrap content showed a diminishing return on penetration resistance, indicating an optimal range.
Conclusions:
- The developed organic mulch is an effective solution for controlling wind erosion in arid environments.
- RSM and CCD provided a reliable model for optimizing mulch composition and predicting performance.
- The findings offer a sustainable approach to land management and pollution reduction in vulnerable ecosystems.
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