Q1. Explain the role of rainwater harvesting in sustaining agriculture and its importance present day scenario.
- Rainwater harvesting (RWH) provides vital supplemental irrigation for rain-fed agriculture.
- RWH techniques like percolation tanks actively recharge depleted groundwater aquifers.
- In-situ RWH improves soil moisture retention and prevents agricultural soil erosion.
- RWH builds climate resilience against droughts and erratic rainfall in farming.
Answer: Rainwater harvesting (RWH) plays a pivotal role in sustaining agriculture by providing a crucial, decentralized water source, particularly in regions facing water scarcity and erratic rainfall patterns. As discussed in Unit 1 of ONR-001, RWH involves collecting and storing precipitation for later use, directly bolstering agricultural productivity and resilience. One primary role of RWH is to ensure water availability for supplemental irrigation, which is vital for rain-fed agricultural systems....