how can you help people in drought areas?
Answers
hope it helps you
The rivers interlink project could act as a system to regulate the flow of water within Indian rivers in the case of drought or flooding but wouldn't be very effective as a long term solution. Changes in rainfall and moisture are occurring throughout the subcontinent.
While some droughts are man made, not all droughts are directly linked to human intervention and hence may not be preventable but then some actions can minimize the effect.
In a region with a reasonably good amount of rainfall, drought can be prevented through a number of ways, the ways listed are just some among many.
1. Reduction of the usage of borewells.
In India, the usage of borewells is the primary factor that causes a decline in ground water. A decline in ground water, is a very significant cause of drought, especially in urban areas where there is a lot surface run off.
Borewells only allow the water to be pumped out of the water table as the shaft of the well isn't big enough to let any sort of rainwater back into the ground, hence groundwater recharge is minimum. Any sort of system which can directly recharge the water table using rainwater could remove the problem regarding borewells.Wells, whether they're borewells or open wells, can have negative consequences if the water table discharge is more than the recharge, it's just that openwells tend to allow water recharge more freely. This is valid in both rural and urban areas. A water saturated ground is better than a ground with no water.
2. Rainwater Harvesting.
This is more like insurance rather than a prevention method/fix. Rain can be collected during a rainy season and could either be stored in large tanks, a lake or pond of some sort or be used to recharge the water table.
Hence, during any dry season, this stored water can be used despite the lack of a water supply.
3. Vegetation, another very important factor.
Trees and plants and other types of vegetation help maintain the water balance/cycle within the atmosphere and ground through the processes of transpiration and absorption.
The organic material that plants and trees are made up of store large amounts of water, hence increasing the overall water capacity of the area. In wet seasons, water is absorbed by the vegetation. During dry seasons, the vegetation lets some of the water into the atmosphere through transpiration. This water adds moisture into the atmosphere as water vapour, hence reducing the dry conditions of the region. This water vapour may also lead to the formation of clouds through condensation, leading to rainfall.
When such vegetation is cut and discarded, the overall water capacity decreases, hence resulting in lesser moisture in the region in general. During dry seasons, no moisture is added into the atmosphere, hence resulting in drier than normal conditions.
4. Dams.
Dams may result in the aridification of areas downstream of the reservoir due to a decrease in the flow of water but also increases the water in areas around the reservoir.
5. Social awareness to save water.The rivers interlink project could act as a system to regulate the flow of water within Indian rivers in the case of drought or flooding but wouldn't be very effective as a long term solution. Changes in rainfall and moisture are occurring throughout the subcontinent.
While some droughts are man made, not all droughts are directly linked to human intervention and hence may not be preventable but then some actions can minimize the effect.
In a region with a reasonably good amount of rainfall, drought can be prevented through a number of ways, the ways listed are just some among many.
1. Reduction of the usage of borewells.
In India, the usage of borewells is the primary factor that causes a decline in ground water. A decline in ground water, is a very significant cause of drought, especially in urban areas where there is a lot surface run off.
Borewells only allow the water to be pumped out of the water table as the shaft of the well isn't big enough to let any sort of rainwater back into the ground, hence groundwater recharge is minimum. Any sort of system which can directly recharge the water table using rainwater could remove the problem regarding borewells.
Wells, whether they're borewells or open wells, can have negative consequences if the water table discharge is more than the recharge, it's just that openwells tend to allow water recharge more freely. This is valid in both rural and urban areas.
A water saturated ground is better than a ground with no water.
2. Rainwater Harvesting.
This is more like insurance rather than a prevention method/fix.
Rain can be collected during a rainy season and could either be stored in large tanks, a lake or pond of some sort or be used to recharge the water table.
Hence, during any dry season, this stored water can be used despite the lack of a water supply.