Gypsum provides calcium ions necessary to replace harmful exchangeable sodium ions in sodic soils, improving soil structure and permeability.
For reclamation of which soils gypsum is used?
Asked in MPSC CS Prelims 2012 · Topic: Environment and Sustainable Development (Deforestation, Desertification, and Land Degradation)
More Environment and Ecology questions
- The soil moisture stress caused due to imbalance between available soil moisture and evapotranspiration of crop is termed as ______
- Which of the following soils fixes more phosphates ?
- A farmer in a semi-arid area claims that his farming practice is very environment friendly. Which of the following practices on his farm can justify his claim ? 1. Planting a tree belt. 2. Practising crop rotation. 3. Carrying out a large scale irrigation system. 4. Using organic fertilizers. Select the correct answer using the code given below :
- Planting a tree belt acts as a windbreak, reducing wind erosion which is critical in semi-arid areas, and can help conserve soil moisture. This is environment-friendly. 2. Practising crop rotation improves soil structure, fertility, and reduces the build-up of pests and diseases, reducing the need for chemical inputs. This is environment-friendly. 3. Carrying out a large scale irrigation system in semi- arid areas can lead to unsustainable water use, depletion of water sources, and soil salinization, making it generally not environment-friendly. 4. Using organic fertilizers improves soil health, water retention, and fertility without introducing synthetic chemicals, which is environment-friendly. 88. Deforestation is not a direct cause of:
- Read the following statement given below and choose the correct alternative Statement 1- Land degradation is caused due to soil erosion and waterlogging Statement 2- Deforestation is the major cause of soil erosion
- Land degradation in India happens at a very large scale", because
- "There is a huge loss of valuable nutrients and fertility in India". What are the reasons for this?
- Consider the following statements: Statement-I: Assertion (A): Soil erosion is essentially a man-made phenomenon. Statement-II: Reason (R): Soil erosion is caused due to deforestation, overgrazing, shifting cultivation and improperly constructed terrace outlets.