Question

1.3 sustaining terrestrial ecosystems

a) why is soil erosion a problem?

b) give 1 way to reduce / stop soil erosion

Explanation:

Identify the impact of soil erosion

In Terrestrial Ecosystems, soil is the foundation of plant growth and nutrient cycling. Soil erosion removes the fertile topsoil layer, which is rich in organic matter and essential nutrients. This degradation reduces agricultural productivity, damages natural habitats, and leads to sedimentation in nearby waterways, which harms aquatic life.

Determine methods to prevent soil erosion

To protect soil resources, various Soil Erosion Prevention techniques can be applied. These practices aim to keep the soil covered and anchored by roots. Effective methods include planting cover crops, practicing no-till farming, contour plowing, terracing, or planting windbreaks (rows of trees) to reduce wind and water runoff.

Answer:

Question 1

a) Why is soil erosion a problem? <blank>It removes fertile topsoil, reducing plant growth and agricultural productivity.</blank>

Question 2

b) Give 1 way to reduce / stop soil erosion <blank>Planting cover crops to anchor the soil with roots.</blank>