NCERT Class 10 Geography Chapter 3: Water Resources Completes Notes Part 4

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Water Resources

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Multipurpose Project of India

Multipurpose Project of India

Now here you have some of the major dams of India some of the important ones we will discuss. So one of those is Bhakra Nangal, it is considered as one of the gravity dams in India. So there are two dams Bhakra and Nangal. These are among the highest sense of the world. Again you have recently built Tehri dam it’s one of the highest dam of India and the highest dams of the world.

On the Chambal project you have three major dams that Rana Pratap Sagar, Kota Barrage, Gandhi Sagar. Order of these three dams are important, so from north to south the following order. again Sardar Sarovar dam on Narmada is important. You have Nagarjuna Sagar dam this dam basically divides or it’s kind of boundary between Telangana and Andhra Pradesh.

It’s based on one of the biggest rivers of the region that’s the Kaveri. Then you have Hirakund dam that is located in Odisha that is again important. Damodar dam that is based on the Tennessee model of United States and the Damodar was previously known as Sorrow of Bengal.

So you have four dams that are built. So those are the Thiliya , Methon, Punchet , Kona dam and then you have the Kosi dam. That’s the sorrow of Bihar so you have the dam. Then you have the Gandak, Gandak dam is a kind of joint venture between India and Nepal. So these are some of the major dams that we have major multipurpose project that we have discussed.

Ironical Situation

  • Made to control floods – but increased floods by sedimentation

  • Situation of Gujarat & Maharashtra in 2006 – devastates property & soil erosion

  • Sedimentation - flood plains were deprived of silt, natural fertilizer, further adding on to the problem of land degradation.

  • Induced earthquakes

  • Caused waterborne diseases and pests

  • Pollution resulting from excessive use of water

Now what is the ironical situation? The most ironical situation here is that these stands were predominately built to control the problem of floods however with the building of dams the problem of floods further aggravated because you are bounding the water to a limited area so there is more problem of flood that is being induced again in 2006 Gujarat and Maharashtra face severe drought which led to devastation of property and lot of soil erosion in the region.

Sedimentation is another page of concern as we discussed. So flood plains are the deprived of silt and again you have fertilizers that are being added and finally being washed off to the same water creating pollution in the water. We have already talked about the seismic activities that are induced in the region. Again one of the important consequences since you have the water that is being hold it in that region you have problem of water borne disease and pest infestation that occurs commonly in that region.

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