Question

What is water harvesting? Mention any two water harvesting structures.

Answer 1

Hint: Water is perhaps the most important component of any ecosystem. Water conservation is the practice of using water efficiently to reduce unnecessary water usage. One of the most effective ways to assist water conservation is to use a rainwater collection system.

Complete answer:
Rain Water Harvesting is a simple technique or technology that collects, stores, conveys, and purifies rainwater that runs off of rooftops, parks, roads, open fields, and other surfaces for later use.
The following are the primary goals of rainwater harvesting:
1. Reducing the amount of water lost due to runoff.
2. Keeping roads from floods. Keeping up with the ever-increasing water demand.
Advantages-
It aids in the reduction of water bills.
It aids in the reduction of soil erosion, stormwater runoff, flooding, and surface water contamination caused by fertilisers, pesticides, and other sediments.
It's a wonderful supply of water for landscape irrigation because it's free of pesticides, dissolved salts, and minerals.
It is the most straightforward method of water conservation.
Water harvesting structures-
In Rajasthan, there are two types of water harvesting structures: khadins and nadis. Some of the structures utilised for water harvesting include small pits, lakes, earthen dams, sand and limestone reservoirs, and rooftop water collecting equipment.

Note:
Construction of tanks for rainwater gathering. Water circulates through the sand, settles on the gypsum layer, and is brought into use through a complicated capillary structure termed berry in the Rajwani system. Deep aquifers called Patali Paani are determined by geological formation.
Water management used to be a community obligation, and community ownership was the norm. In Karnataka, a Neeruganti was a person who was in charge of water distribution. In Spiti and Arunachal, as well as other desert areas, the system of water ownership is still in use.