Control of soil erosion, Science

Assignment Help:

Control of soil erosion:

The most significant measures of erosion control  include (i) growth of grasses, shrubs and trees on soils and (ii) construction of a drainage system which can prevent free, uncontrolled flow of  water. Water flow causes formation of narrow channels or gullies andleads to development of deep narrow valleys leading to ravine land. The famous Chambal ravines have been formed as a result of deep soil erosion and the process is still continuing. This can be controlled by constructing a series of check dams which prevent the flow of running water and widening of gullies. Formation of a broad wall of stone along the coasts of Maharashtra, Kerala, Andhra Pradesh and Orissa has proved to be very effective in controlling  erosion by  sea waves and currents. Movement of sand by gusts of wind in the deserts and sandy coasts can be prevented by putting barriers of  trees and shrubs across the path of wind. In the mountain and hilly areas, planting of  stems and branches of  self propagating trees and shrubs, not only strengthens  the slope of  the terrace but also provides fuelwood and fodder  to the farmers. Alternation of beds of crops with strips of erosion resistant vegetation  like grasses, shrubs. trees, maize, sugarcane, cotton and tobacco etc. brings about stabilisation of the terraced fields on mountainous and hilly areas. The most effective step in controlling  erosion and mass movement, such as landslides in the hills, is the construction of a network of the drainage ditches which are filled with fragments of stones  or bricks so  that water flows out through them. The hill slopes are stabilised by constructing walls around them which allows the free passage of water. On the vulnerable slopes, a cover of vegetation is provided and in the beginning, seeds are covered with coir netting pegged firmly  to the ground. Netting checks erosion, holds the soil material together and adds nutrients. The quick growth of grass stabilises  the soil.  

754_Control of soil erosion.png


Related Discussions:- Control of soil erosion

Food borne diseases, Food Borne Diseases: If  the food handler, like ...

Food Borne Diseases: If  the food handler, like the cook, suffers  from some infection and is not careful about washing his hands after defecation,  the germs or eggs of worm

Intrusion into the water cycle, Intrusion into the Water Cycle: Water m...

Intrusion into the Water Cycle: Water management is one of  the leading concerns of man  today. The natural water cycle has not been able to compensate for the effects of human

Matter, heavy matter in the world

heavy matter in the world

The temperature of water in oceanic depths, What is the general statement ...

What is the general statement regarding the temperature of water in oceanic depths? Commonly, the relation is this - the further from the surface the colder the water. This

#title., what is the mode of feeding of a lion

what is the mode of feeding of a lion

Explain in-vitro detection of antigen-antibody interaction, Explain In-Vitr...

Explain In-Vitro Detection of Antigen-Antibody Interaction Any infection caused, requires a proper treatment. This can be achieved only if the correct organism is identified. S

Explain the role of secretin, Explain the Role of secretin Secretin is ...

Explain the Role of secretin Secretin is a polypeptide containing 27 amino acids. It is present in the mucosa of the upper small intestine in an inactive form prosecretin. When

Explain the renal function tests, Explain the Renal Function Tests Rena...

Explain the Renal Function Tests Renal function tests are the common tests and procedures used to evaluate renal function and for this, the analysis of blood and urine samples

Zoology, what is the nature of zoology?

what is the nature of zoology?

What are the important processed pulse products, Q. What are the important ...

Q. What are the important processed pulse products? Puffed chickpea and pea, besan, papads, pulse-based weaning foods, quick cooking dhals, and canned dry peas are the importa

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd