What Is Water Logging & Salinity?

Rising of water table on earth surface is called waterlogging. The word salinity is drived from saline/salt . The excess of salt present on earths surface is called salinity

When the Perennial canals were introduced in Pakistan, water was available throughout the year resulting in a high water table. Salts in the soil also rise to the surface with the water table. The water, on reaching the surface, evaporates and the salts are deposited on the surface, rendering the land unsuitable for farming.
The rise of water table to the surface level is called WATER LOGGING and the appearance of salty patches is called SALINITY.

Water logging is the condition of soil when water table is too high to replace Oxygen with water, the soil becomes saturated with water, the germination and plant growth is significantly affected due to suffocation.
Salinity is the condition of soil when it contains too high salts concentration to support the proper germination and plant growth. The main cause of salinity in pakistan is light rains in low numbers light irrigation not enough to leech down the salts away from root zone. The application of Brackish water of tube wells and weathering of soil profiles also cause salinity.

Water logged soil water level goes up to  the plant root level and in this way pore space in the soils filled by water completely with water and and  plant become unable to get oxygen from the soil so water logging should be solved by planting that plant which have deep root level.soil .
Water loggin soils did not able to grow crop because the water logging soil .become rich in water.

When the water table on the surface of the earth increase ,it is called water logging.Salinity word is derived from salt.the amount of salt in water is known as Salinity.

Water logging is caused by rising water table and this in turn is  mainly caused by irrigation. Irrigation waters invariably contain some  amount of salts, which seep unto ground and create serious  problems in the future.  If the quantum of irrigation water applied is so small, i.e., only  meets evaporation as well as evapo-transpiration requirements of  crops, salts in irrigation water will remain in the soil because  evaporation and evapo-traspiration processes essentially are  vaporization of water and vapour do not carry any salts form water  into the atmospheres.

Irrigation without proper drainage of water leads to waterlogging in the soil. Besides affecting the soil, waterlogging draws salt to the surface of the soil. The salt then is deposited as a thin crust on the land surface and starts collecting at the roots of plants.

Define water logging and salinity ?