Certified Storm Water Operator Practice Exam

What type of plants should be selected for wet soil conditions?

1. Fast-growing

2. Fungal resistant

3. Tolerant

4. Desert adapted

The correct answer is: Tolerant

Selecting plants that are tolerant of wet soil conditions is essential for effective stormwater management and ecosystem health. These types of plants, often referred to as wetland or hydrophytic plants, have adapted to thrive in saturated or regularly inundated soils. Their ability to grow in such environments enables them to perform several vital functions, including improving water quality, providing wildlife habitat, and stabilizing soil to prevent erosion. Wet-tolerant plants possess specific physiological adaptations that allow them to manage excessive moisture. For instance, they may have specialized roots that can withstand low oxygen levels in waterlogged soils or aerenchyma tissue, which facilitates gas exchange even in saturated conditions. By utilizing these plants in areas prone to flooding or persistent moisture, the likelihood of plant stress and mortality is significantly reduced. In contrast, selecting fast-growing plants may not ensure suitability for wet soils since their growth rate does not necessarily correlate with moisture tolerance. Fungal resistant plants, while important for disease management, do not inherently possess the qualities required for wet soils. Similarly, desert-adapted plants are specifically suited for arid conditions and would struggle to survive in consistently wet environments. Therefore, choosing tolerant plants is crucial for successful establishment and sustainable landscape practices in wet soil areas.