IGNOU BPVI 12 2026 - Identify the various recharge structures used for groundwater re

Question

Identify the various recharge structures used for groundwater recharge and explain the working process of a rainwater harvesting system, highlighting its practical importance in water conservation.

06 Mar 2026

Answer :

Word Count : 436

Groundwater recharge plays a crucial role in maintaining water availability, and various structures have been developed to enhance this process effectively. In dairy operations, where water is essential for cleaning, processing, and cooling, understanding recharge methods helps ensure a sustainable water supply. Common recharge structures include percolation tanks, recharge wells, check dams, contour trenches, and infiltration pits. Percolation tanks are shallow, artificially created reservoirs that capture rainwater and allow it to percolate slowly into the ground. Recharge wells are vertical shafts drilled into aquifers that direct surface runoff or collected rainwater directly into underground water-bearing layers, improving aquifer storage. Check dams, constructed across small streams, slow down water flow, reduce soil erosion, and increase infiltration. Contour trenches dug along slopes intercept rainwater, reduce surface runoff, and promote gradual infiltration, while infiltration pits are small dug-out structures filled with permeable material like gravel or sand,

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