What are the major causes of groundwater depletion?
What are the major causes of groundwater depletion?
Subsidies on electricity and high MSP for water intensive crops is also leading reasons for depletion. Water contamination as in the case of pollution by landfills, septic tanks, leaky underground gas tanks, and from overuse of fertilizers and pesticides lead to damage and depletion of groundwater resources.
What are 5 effects of groundwater depletion?
Some of the negative effects of ground-water depletion include increased pumping costs, deterioration of water quality, reduction of water in streams and lakes, or land subsidence. Such effects, while variable, happen to some degree with any ground-water use.
What is the #1 global use of groundwater?
Roughly 60 percent of global groundwater use is for irrigation; most of the rest is used in households and industry.
What are the main cause depletion of water resources?
The two main causes of Depletion of Water Table are Deforestation and Over-pumping of groundwater.
What is groundwater depletion in India?
According to the Index, groundwater in India depleted at 10-25 mm per year between 2002 and 2016. 54 per cent of India’s groundwater wells are declining – said the report. It added that about 40% of India’s population possibly would have no access to drinking water by 2030.
Why groundwater resources are depleting at a fast rate?
1. Groundwater depletion most commonly occurs because of the frequent pumping of water from the ground. 2. We continuously pump groundwater from aquifers and it does not have enough time to replenish itself.
What are the impact of groundwater depletion on environment?
2. Large bodies of water will become more shallow from groundwater depletion. A groundwater shortage keeps additional water from flowing into lakes, rivers and seas. This means that over time, less water will enter as the existing surface water continues to evaporate.
What country uses the most groundwater?
India is the largest user of groundwater in the world. It uses an estimated 230 cubic kilometers of groundwater per year – over a quarter of the global total. More than 60% of irrigated agriculture and 85% of drinking water supplies are dependent on groundwater.
What country has the most groundwater?
Brazil has highest freshwater resources in the world which is accounts for approximately 12% of the world’s freshwater resources. It is just because Amazon region this country contains 70% of the total freshwater.
How can we prevent groundwater depletion?
Top 10 List
- Go Native. Use native plants in your landscape.
- Reduce Chemical Use. Use fewer chemicals around your home and yard, and make sure to dispose of them properly – don’t dump them on the ground!
- Manage Waste.
- Don’t Let It Run.
- Fix the Drip.
- Wash Smarter.
- Water Wisely.
- Reduce, Reuse, and Recycle.
What is groundwater depletion Upsc?
According to the CGWB, with 230 billion metre cube of groundwater drawn out each year for irrigating agriculture lands in India, many parts of the country are experiencing rapid depletion of groundwater. The total estimated groundwater depletion in India is in the range of 122–199 billion metre cube.