English, asked by Sanyam578, 1 year ago

article on water harvesting : why and how?

Answers

Answered by tanu23081
106
Rain Water Harvesting article 1 (100 words)

Rain water harvesting is a technique used for collecting and storing rainwater by using various means in different resources for the future use purpose (like cultivation, etc). Rain water can be collected into the natural reservoirs or artificial tanks. Another method of collection is infiltration of surface water into the subsurface aquifers before getting lost by surface overflow. Rooftop harvesting is also a method to collect rainwater. It is of big importance to the people living in the less rainfall areas. They can continue seasonal crop harvesting using collected rain water even in the lack of regular water supply. Whenever it rains, rain water gets collected into the man made ponds or tanks.

 




Rain Water Harvesting article 2 (150 words)

Rain water harvesting is the collection of rainwater into the man made resources or any natural resource like pond, lake, etc at the same place where it falls from rooftops or ground. Two main techniques of rainwater harvesting are storage for future use and recharge into the ground. It can be used for crop harvesting, gardening, toilets, etc. Following are the benefits of rainwater harvesting at individual or city-wide level:

It helps in reducing the water supply bills especially to the institutions.

Rainwater recharged to the ground positively affects groundwater quality by diluting fluorides, nitrates and its salinity.

It contains almost neutral pH and zero hardness which makes it more able to be used in homes, industries, institutions and other commercial establishments.

It may reduce the stress of public water supply sources.

Recharge of rainwater to the ground prevents sea-water immersion into the fresh water bodies in the coastal areas.

It helps in controlling urban flooding if people do rainwater harvesting from rooftops.

It reduces water demands of people from the municipality thus lessens energy consumption too in distributing water all through the city.







~Rain water harvesting article 3(200words) ~

Rainwater harvesting means collecting the rain water into the natural reservoirs or man-made tanks. It is the technique to collect and store rainwater for various purposes in the future. The most common and easy method of rain water harvesting is the rooftop harvesting. Using this technique we can collect lots of clean rain water in the rainy season. It can be stored for long time for the household purposes like gardening, livestock, and irrigation, etc. Following are benefits of rain water harvesting:

It helps in reducing water supply loads and electricity bills of municipality, improve free water supply, crop production in rural areas, and thus lead to food security.

Rain water harvesting system helps in reducing the insecurity of households or individuals in the rural areas.

It provides easy and low cost water supply in the lack of water areas thus helps in food security and income generation.

Tamil Nadu is one of the states of India and now has been first Indian state where rainwater harvesting has been mandatory. Tamil Nadu state government has declared on 30th of May 2014 to establish around 50,000 rainwater harvesting structures at various places in the Chennai. Till now, approximately 4,000 of the temples in the Tamilnadu have rain water tanks serving at various rituals in temples and help in recharging the groundwater.

Answered by VishalSharma01
140

Answer:

Explanation:

Answer :-

                               Need of Rain Water Harvesting

Rain Water Harvesting means to collect rainwater so as to be used when needed It is indeed the need of the hour. If we collect water in small tanks and pools, it serves two purposes. The collected water can be used later on. This water helps raise the water level in wells and bore wells. The water level in the ground will rise. This is the cheapest and the ideal solution to all our water problems. This will also reduce soil erosion by reducing the flow of water. The less of water on the roads will decrease the choking of drains and flooding of roads. Much of our electricity is spent on lifting the groundwater. Water- harvesting will save this electricity.

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