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Difficulty: MediumConservation of Natural Resources and Environmental Management

Establishing shelterbelts consisting of lines of drought-resistant trees planted perpendicular to prevailing winds effectively reduces soil erosion and conserves soil moisture in arid agricultural lands.

Answer: Answer

Answer

The statement is True.
The statement is true because shelterbelts significantly reduce wind velocity, preventing wind-driven topsoil loss and decreasing atmospheric evaporative demand on soil and vegetation.

Step-by-Step Solution

1
Identify the primary mechanism of shelterbelts in environmental management.
Shelterbelts serve as mechanical barriers that break and redirect wind force across cultivated fields.
Planting trees across prevailing wind directions disrupts linear air currents near ground level.
2
Assess the impact of reduced wind speed on soil conservation and moisture retention.
Wind erosion of topsoil is suppressed and crop water loss via evaporation is reduced.
Slower wind speeds minimize kinetic energy capable of lifting dry soil particles and reduce the vapor pressure gradient responsible for rapid evaporation.

Key Concept

Shelterbelts and Windbreaks in Soil and Water Conservation
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Topics

Conservation of Natural Resources and Environmental Management

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