What is water resources? What is it uses and over - Utilization of surface and ground water? Part 1

                 Water resources
Water is very essential for human beings. Water is use for irrigation, kadigestive of food ,water is also required in large amounts for industrial and domestic consumption.
Irrigation


 Sginificant of water 
The significant of of water are:-
  • Water is the main resource of environment.
  • Water is also  main resources for human beings. Water need for human being for digestion of food , 
  • Water is also use for irrigation purpose, industry use . 
Surface water
 Surface water are river , lake and ponds.
River
River is source of water to reach to us . River water  flow takes place through 14 major river systems. They are   Brahmani,Bhrahmaputra, Cauvery, Ganga, Godavari, Indus, Krishna, Mahanadi, Mahi, ko Narmada,Periyar, Sabarmati,Subarnarekha and Tapti.
Position of the river under this :-
  • They share 83% of the drainage basin.
  • They account for 85% of the surface flow.
Lakes and ponds
Lakes is the inland depressions that contain standing water. Lake is also the source of water for human being.

Ponds
Ponds are considered as small bodies of storing  water.Most of  ponds and lakes have outlet streams and both are more or less temporary features on the landscape the reason is filling, no matter how slow, is inevitable.
Sea


 Kinds of lakes
On the bases of physical and productivity etc, .
The different classification of lakes exist are:-

  • Based on temperature

 Hutchnson (1957) classified lakes into dimitic, monomictic and polemicist lake.

 They come under are :-
1. The dimictic lakes exhibit two overturns       every year, while monomictic lakes           presentonly a single overturn per year.
2.  The monomictic lakes may be cold monomictic and monomictic.

  • Cold monomictic
It's cacterised circulation during summer  

  1.  Warm Monomictic: It has a circulation in winter as well.

2. Polomictic lakes present circulation throughout the year.

 Based on the human acid content the lakes of world have been classified into clear
water lakes and brown water lakes,

  • The brown water contains high humus content.
  • Clear water takes might  be divided into two types as under:
1. The oligotrophic type
 It's water source  is poor in nutritive plant material and its nearly equal distribution of oxygen during summer and winter months. Its mud bottom contains little organic material.

 2.The eutrophic type:-
It is rich in nutrients. At greater depth below the thermo cline in summer eutrophic lakes show a considerable reduction in oxygen content and their mud bottom is composed of typical muck.

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