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Soil- 2 Video Lecture | Geography for UPSC CSE
FAQs on Soil- 2 Video Lecture - Geography for UPSC CSE
| 1. What is soil erosion? |  |
Ans. Soil erosion is the process of the removal of topsoil by natural forces such as wind, water, and gravity. It is a serious environmental issue that can lead to the loss of fertile soil, decreased agricultural productivity, and degradation of ecosystems.
| 2. How does deforestation contribute to soil erosion? | |
Ans. Deforestation plays a significant role in soil erosion as it removes the protective vegetation cover, exposing the soil to erosive forces. Without trees and plants to hold the soil in place, rainfall can easily wash away the topsoil, leading to increased erosion rates.
| 3. What are the negative impacts of soil erosion on agriculture? | |
Ans. Soil erosion negatively affects agriculture in several ways. It reduces soil fertility by depleting the topsoil, which is rich in organic matter and nutrients necessary for plant growth. Erosion also disrupts the soil structure, making it less capable of retaining water and nutrients, thus reducing crop yields.
| 4. How can soil erosion be prevented? | |
Ans. Soil erosion can be prevented through various measures such as contour plowing, terracing, and strip cropping. These techniques help to slow down the flow of water, reduce its erosive power, and promote infiltration. Additionally, planting trees and vegetation cover, implementing proper land management practices, and reducing overgrazing can also help prevent soil erosion.
| 5. What are the long-term consequences of soil erosion? | |
Ans. The long-term consequences of soil erosion can be severe. It leads to the loss of fertile topsoil, which takes hundreds or even thousands of years to form naturally. This loss of soil reduces agricultural productivity and can result in food insecurity. Moreover, eroded soil can also contribute to water pollution as sediment and pollutants are carried into rivers and lakes, impacting aquatic ecosystems.
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