AP BIOLOGY

Detailed explanation-1: -Plants of the grass family have a fibrous root system and not a tap root system. Fibrous roots spread through the soil and help to hold the soil more firmly than tap roots. This helps prevent washing away of soil and thus, helps in conserving soil .

Detailed explanation-2: -Plants with fibrous root systems (tangled masses of roots) are better at preventing erosion than plants with tap roots. Fibrous roots can hold soil in place during strong rains. Plant leaves and flowers help too. They soften the impact of raindrops; the soil does not splash around as much.

Detailed explanation-3: -Trees are often considered to be the universal answer to control soil erosion. Tree roots help prevent landslides on steep slopes and stream bank erosion but they don’t stop erosion on moderately sloping hillslopes.

Detailed explanation-4: -Abstract. Plant roots can be very effective in stabilizing the soil against concentrated flow erosion.

Detailed explanation-5: -Because the roots are close to the surface of the soil, plants with fibrous roots are great for controlling erosion.