|Class 10 Biology Management of Natural Resources||Water harvesting|
Water conservation increases biomass production.
The aim of water harvesting is to develop primary resources of land and water to produce secondary resources.
Khadins, tanks, nadis in Rajasthan, bandharas, tals in Maharashtra, ahars and pynes in Bihar, surangams in Kerala, bundhis in Madhya Pradesh, eris in Tamil nadu, Kattas in Karnataka are some of the water harvesting system.
In largely level terrain, the water harvesting structures are crescent shaped earthen embankments; straight concrete and rubble check dams built across seasonally flooded gullies.
The advantages of water stored in ground are-
Fig. Ground water