Water harvesting

The emphasis is on soil and water conservation in water supply management so that 'bio-quantity' production can be increased.  Its main objective is to develop primary sources of land and water, production of secondary resource plants and animals in such a way that ecological balance is not created.  Water supply management not only increases the production and income of the water supply community but also pacifies droughts and floods and also increases the service life of lower dams and reservoirs.  Many organizations are reviving ancient water conservation systems that can become an alternative to large projects such as dams.  These communities have developed hundreds of water conservation methods through which every drop on the earth can be conserved.  Such as digging small pits, constructing lakes, setting up of ordinary water logging system, making small dams of soil, making sand and limestone collectors and collecting water from the roofs of the house.  This increases the ground water level and also revives the river.Water harvesting is a very old concept in India.  Khadin, big pot and pulse in Rajasthan, Bandhars and Tal in Maharashtra, Bandhas in Madhya Pradesh and Uttar Pradesh, Ahar and Pine in Bihar, Kulh in Himachal Pradesh, Pond in Kandi area of ​​Jammu and Tunis in Tamil Nadu, Tunisam in Kerala,  Ancient water harvesting and water transport structures like katta etc. are still in use in Karnataka.  Water harvesting techniques are local and also benefit local / limited area.  By giving control of water conservation to the local residents, inefficient management and over-exploitation of these resources can be reduced or completely eliminated.Water storage sites in large flat terrain, mainly crescent mud pits or low-lying, drains that are completely filled in the rainy season are 'check dams' on natural waterways made by concrete or small pebble stones.  Due to the blockage of these small dams, the monsoon water behind them fills in the ponds.  Only large reservoirs have water throughout the year.  But in small reservoirs, this water stays for 6 months or even less, after which it dries up.  Their main purpose is not water harvesting but to improve the water level.  Water has many benefits of conservation in the form of ground water.  There are many benefits from ground water.  It does not evaporate, but it spreads to the surroundings, providing moisture to the vegetation over a large area.  Apart from this, there is also no problem of mosquito breeding.  Ground water is relatively safe from contamination of human and animal waste unlike water stored in lakes ponds.