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Q23 (IAS/2010) Environment & Ecology › Pollution & Conservation › Soil and land degradation Answer Verified

With reference to soil conservation, consider the following practices : 1. Crop rotation 2. Sand fences 3. Terracing 4. Wind breaks Which of the above are considered appropriate methods for soil conservation in India ?

Result
Your answer: —  Â·  Correct: D
Explanation

All four practices are appropriate for soil conservation. Crop rotation (including alternating exhaustive crops with legumes) helps maintain soil fertility and reduces erosion by improving soil structure and management practices [4]. Terracing cuts steps into slopes to restrict runoff and soil loss and is a traditional erosion-control method in hilly regions such as the Himalayas [2]. Sand fences and sand-dune stabilization are key measures to control wind erosion and desertification, often combined with shelter-belt plantations [1]. Wind breaks or shelter belts reduce wind fetch and shield soils from wind erosion; they are recommended as part of wind-erosion control and afforestation measures [5].

Sources

  1. [4] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 6: Environmental Degradation and Management > i) rotation of crops > p. 19
  2. [2] NCERT. (2022). Contemporary India II: Textbook in Geography for Class X (Revised ed.). NCERT. > Chapter 1: The Rise of Nationalism in Europe > Soil Erosion and Soil Conservation > p. 12
  3. [1] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 15: Regional Development and Planning > Desertification and Desert Development Programme > p. 46
  4. [3] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 6: Environmental Degradation and Management > SoIl EroSIon. > p. 17
  5. [5] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 9: Agriculture > 3. Soil Erosion > p. 70
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