Option A, afforestation, is a well-known method as tree roots bind soil. Option C, slowing down of water movement (e.g., through contour bunding or terraces), reduces the erosive power of water. Option D, applying fertilizers regularly, promotes healthy plant growth, and good vegetative cover protects the soil from rain impact and wind, thus indirectly aiding conservation, although it's primarily a nutrient management practice. Option B, "increasing the size of particles," is not a recognized method of soil conservation. Soil particles (sand, silt, clay) are inherent properties, and while soil aggregation (forming stable clumps of particles) is important for soil health and erosion resistance, simply "increasing the size of particles" is not a practical or standard conservation technique.
Which of the following is not a method of soil conservation?
Asked in TNPSC CS Prelims 2014 · Topic: Environment and Sustainable Development (Deforestation, Desertification, and Land Degradation)
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Answer: B. increasing the size of particles
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