What is water logging and its impact?

What is water logging and its impact?

Waterlogging is a form of natural flooding when underground water rises to surface level as the result of over-irrigation. Waterlogging can displace the spoil, affect the natural processes in the soil, and result in a build-up of toxic substances in the soil, which can impede plant growth in the immediate area.

What are the problems caused by waterlogging?

Waterlogging lowers oxygen levels in the root zone, which reduces plant growth. Waterlogging increases the reduction potential of the soil and changes the chemical equilibrium of many elements which then enter the soil-water solution in their ionic forms.

How water logging harm the crops?

Water logging makes the soil like a bucket full of water or makes the soil full of water. Dueto this, the roots of the crops drown and become unable to breathe. We can prevent it by reducing the giving amounts of water to the crops.

What is water logging give its causes and effects of water logging and how will you prevent water logging?

Water logging is a condition of land in which the soil profile is saturated with water either temporarily or permanently (figure 1). Water logging can reduce the agricultural and economic value of land causing yield reductions or at times, total crop failures. Water logging is also a drainage problem.

What are the causes of water logging?

Water-logging is, however, caused mainly because of manmade factors like deforestation and poor upkeep of watersheds; developmental activities such as construction of roads, bridges, railway lines and buildings resulting in choking of natural drainage; hydraulic pressure of water from upper irrigated areas resulting in …

What is water logging write 2 harmful effects of excessive irrigation?

Excess of water in soil leads to water logging. Sometimes, it inhibits the process of germination. Roots do not grow properly in a standing water field. Excess irrigation destroys standing crops.

What is water logging write two harmful effects of excessive irrigation?

Over-irrigation leads to water loss, increases energy use for pumping, causes leaching of nitrogen and other micro nutrients, and wastes time. Crop nitrogen needs, fertilizer costs, and nitrogen losses to groundwater also result from over-irrigation.

In which type of soil does water logging occur?

Water will drain through the spaces between the particles of sand easily. Sandy soils, therefore, tend to be light, well ventilated and dry. Hence, the correct answer is option (A). Note: 1) The main soil community in India is alluvial soil.

What causes water logging?

Waterlogging is caused by a combination of excess rainfall (for the site), poor external drain- age (runoff), poor internal drainage (water movement in the soil profile) and the inability of the soil to store much water.

What are some of the effects of waterlogging?

Effects of Waterlogging Apart from ill-aeration of plants, many other problems are created by waterlogging such as The normal cultivation operations such as tilting, ploughing etc cannot be easily carried out in wet soils. In extreme cases, free water may rise above the surface of the land, making the cultivation operations impossible.

How does excessive rainfall lead to water logging?

Excessive rainfall create temporary water-logging and in the absence of good drainage, it may lead to continued water-logging. If the land is continuously submerged by floods, water-loving plants like grass, weeds etc. may grow, which obstruct the natural surface drainage of the soil and thus increasing the chance of water-logging.

How does water logging affect the root zone?

Effects of water logging : 1 Creation of anaerobic conditions near the root zone : Excess of water prevents circulation of air. 2 Normal cultivation operations such as tilting, ploughing cannot be easily carried out. 3 Water logging leads to salinity

How does waterlogging affect the growth of plants?

When the air phase is restricted, anaerobic conditions prevail, adversely affecting crops. Waterlogging constraints plant growth and production in the anaerobic conditions, leading to the death of certain crops and plants. Also, plant roots fail to respire as a result of the excess water in the soil profile, making them weak and either die or fall.