Question

how important is rain water harvesting in India cities like Telangana and haryana​

Answer 1

Answer:

Rain Water Harvesting is an age-old system of collection of rainwater for future use. Statistics shows that during the last four decades, groundwater wells and tube wells have increased many fold, mainly in arid and semi-arid regions of India. The method of groundwater extraction was unplanned and uncontrolled. This caused hydrological imbalance, deterioration in water quality and the rise in energy requirements for pumping. Majority of the population in the cities today are groundwater dependent. Thus, there arises a need for augmenting the rain water through rain water harvesting and artificial recharge. Haryana state is located in the north western part of India which covers 1.35% of the geographical area of the country. The average stage of groundwater development in Haryana is 109% which indicates that groundwater withdrawal is more than its recharge per year. This recharge can be compensated by the artificial recharge and rain water harvesting. The state has 84% area feasible for artificial recharge. The recharge can be done by various methods suitable for rural and urban areas in relation with the physiographic structure of the area. This all costs Rs.1255.30 crores for the construction of 44,727