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Effect of Mediterranean shrub on water erosion control
1Centro de Investigaciones sobre Desertificación-CIDE Jaime Roig, 11, 46010, Valencia, Spain.
Environmental Monitoring and Assessment
|November 8, 2013
Summary
Recovering Mediterranean scrub vegetation significantly reduces soil loss from water erosion. Natural vegetation provided the best soil protection, decreasing soil loss by 69.2% compared to other tested species.
Area of Science:
- Environmental Science
- Soil Science
- Ecology
Background:
- Scrub vegetation dominates Spanish Mediterranean landscapes, with wildfire impacts affecting ecological processes like water erosion.
- The role of recovered vegetation in soil protection and erosion control is crucial but understudied.
Purpose of the Study:
- To investigate the behavior and architecture of regenerating Mediterranean shrub vegetation.
- To assess the impact of this vegetation recovery on soil protection and water erosion control.
Main Methods:
- Field study on four experimental plots in the Spanish Mediterranean environment.
- Comparison of natural vegetation, two planted forage species (Medicago arborea L. and Psoralea bituminosa L.), and a control plot with no vegetation.
- Monitoring of runoff and soil loss due to water erosion from 1989 to 1992.
Main Results:
- Natural vegetation exhibited the most significant protective effect, reducing soil loss by 69.2%.
- Medicago arborea L. plots showed a 41.7% decrease in soil loss.
- Psoralea bituminosa L. plots demonstrated a 29.3% decrease in soil loss, noting its recent planting.
Conclusions:
- Regenerating Mediterranean shrub vegetation plays a vital role in mitigating water erosion and enhancing soil protection.
- Natural vegetation recovery offers superior erosion control compared to the tested introduced species.
- Further research may be needed to fully evaluate Psoralea bituminosa's long-term protective potential.
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