What is water logging and salinity?

The excessive use of water for crops, non-cemented canals and a poor drainage system are causing waterlogging and salinity in the area. This ultimately results in waterlogging. “The stagnant water gradually turns saline and destroys nearby arable lands.”

What do you mean by water logging?

Waterlogging occurs when there is too much water in a plant’s root zone, which decreases the oxygen available to roots. Waterlogging can be a major constraint to plant growth and production and, under certain conditions, will cause plant death.

What are the causes of waterlogging and salinity?

Causes of Waterlogging

Physiography. The topography, slope, shape and drainage patterns of a place could cause waterlogging.
Weather, Especially Atmospheric Conditions That Result in Heavy Rainfall and Flooding.
Soil Type.
Geology.
Seepage Inflows.
Excessive Irrigation and Poor Drainage System by Farmers.

What is water logging in Pakistan?

Waterlogging: Waterlogging are the problem mainly caused by seepage of water due to problems in the canal system of Pakistan. There is no scientific methods for irrigation purposes and rough surface runoff and gravitational drainage. ”

How water logging and salinity affects the growth of plants?

Water logging in combination with high salinity can cause greater depression in growth and photosynthesis capacity than would occur with either stress alone. On the other hand someone say, excess water can reduce salt concentration which may positively affect plant growth.

What is water logging 8?

Water logging means the saturation of soil with water. Soil may be regarded as waterlogged when the underground water table goes too high to conveniently permit agriculture and other similar activities. Water lodging or Water logging is a process that prevent growing of plants in soil.

What is water logging short answer?

Waterlogging refers to the saturation of soil with water. In irrigated agricultural land, waterlogging is often accompanied by soil salinity as waterlogged soils prevent leaching of the salts imported by the irrigation water.

What is salinity Slideshare?

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Salinity is the total amount of dissolved salts in water; grams of salts per kilogram of water (g/kg) or as parts per thousand (ppt).
How does water logging increase soil salinity?

Crops need air to a greater or lesser depth in the soil. Waterlogging of the soil stops air getting in. The practice of irrigation results in consumptive uses of water through evapotranspiration, leaving behind salts concentrated in a smaller volume of water.

What are the causes of water logging?

Causes of Waterlogging
- Over and Intensive Irrigation.
- Seepage of water from the adjoining high lands.
- Seepage of water through the canals.
- Impervious Obstruction.
- Inadequate natural drainage.
- Inadequate surface drainage.
- Excessive rain.
- Submergence due to floods.
What is water logging 10?

Water logging is the process in which field is filled with excess water whereas Water lodging occurs when the water logging is there and destroy the crop. The process of water logging and water lodging destroy the crop plant and prevent their growth. Waterlogging refers to the saturation of soil with water.

What is water logging Ncert?

What are harmful effects of water logging and salinity?

Waterlogged soil provides excellent breeding grounds for misquitoes,and cause malaria.
It causes loss in crop yield.
When waterlogged soil are fully saturated,plant roots can not absorb water.
In rainfall or irrigation,water after saturating the root-zone travels downward washing down excess salts.

What does water logging and salinity mean?

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 the water-table to the surface level is called water logging and the appearance of salty patches is called salinity.