Presentation 21.pptx water harvesting 12

this is a project made on topic "water harvesting" in this ppt all the benefits of water harvesting are covered hope it will help you

1. Shubham Gaur Roll no-41 Class-9th D Admission no-6425

2. Water Harvesting The term ‘water harvesting’ generally refers to the collection of rainstorm-generated runoff from a particular area (a catchment) in order to provide water for human, animal, or crop use. The water thus collected can either be utilized immediately, as for irrigation, or be stored in aboveground ponds or in subsurface reservoirs, such as cisterns or shallow aquifers, for subsequent utilization. As such, water harvesting is an ancient practice that has enabled some societies to subsist in semiarid and arid areas where other sources of fresh water (e.g., rivers, lakes, or aquifers) are scant or unavailable.

3. Advantages Of Water Harvesting Water harvesting can reduce stormwater runoff from a property.  The elimination of runoff can reduce contamination of surface water with pesticides, sediment, metals, and fertilizers. By reducing stormwater runoff, rainwater harvesting can reduce a storm’s peak flow volume and velocity in local creeks, streams, and rivers, thereby reducing the potential for streambank erosion. Rainwater harvesting systems can be employed as simple and effective methods to meet a municipality’s stormwater management program requirements of individual properties. It is an excellent source of water for plants and landscape irrigation since it has no chemicals such as fluoride and chloramines (chlorine).

4. Types Of Water Harvesting

5. Thank You