Describe how modern adaptations of traditional rainwater harvesting methods are being carried out to conserve and store water.
Water harvesting system is considered a viable alternative, both socio-economically and environmentally, to multi-purpose projects. In ancient India, people had in-depth knowledge of rainfall regimes and soil types and developed wide-ranging techniques to harvest rainwater, groundwater, river water, and flood water according to local ecological conditions.
Traditional methods included 'guls' or 'kuls' (diversion channels) in the Western Himalayas for agriculture, 'rooftop rainwater harvesting' in Rajasthan for drinking water, inundation channels in Bengal's flood plains for irrigation, and structures like 'khadins' in Jaisalmer and 'Johads' in Rajasthan where agricultural fields were converted into rain-fed storage structures.
Today, in western Rajasthan, the practice of rooftop rainwater harvesting is declining as plenty of water is available from the perennial Indira Gandhi Canal. However, some houses still maintain their tankas as they prefer the taste of stored water over tap water.
Fortunately, in many parts of rural and urban India, rooftop rainwater harvesting is being successfully adapted. A notable example is Gendathur, a remote village in Mysuru, Karnataka, where villagers have installed rooftop rainwater harvesting systems in their households. Nearly 200 households have installed this system, earning the village the rare distinction of being rich in rainwater.
These modern adaptations demonstrate how traditional knowledge is being revived and modified to meet contemporary water needs while ensuring conservation.
Explanation
The answer draws directly from the textbook context which discusses both traditional methods and their modern adaptations. Key points covered include: (1) water harvesting as a viable alternative, (2) traditional methods across different regions, (3) decline in western Rajasthan due to Indira Gandhi Canal, (4) successful adaptation in Gendathur, Karnataka with 200 households. The answer follows the 5-mark format with 5 paragraphs and uses bold for key terms as required.