BNRI 103 Solved Assignment 2024-25
Soil and Water Conservation
BNRI 103 Solved
Assignment 2024-25 : All assignments are in PDF format which would be send
on email/WhatsApp (9958676204) just after payment.
Assignment Code: ASST/ BNRI 103 /2024-25
Marks: 100
Attempt all the questions:
Q1. Define soil
erosion. Explain causes of soil erosion. Describe the different forms of water
erosion.
Soil erosion is the process by which soil particles are detached, moved, and deposited elsewhere by various agents such as water, wind, ice, or gravity. It's a natural process, but it becomes a significant problem when it occurs at an accelerated rate due to human activities or natural factors. Here's a breakdown of causes and forms of water erosion:
Rainfall and
Runoff: Heavy rainfall can dislodge soil particles and create runoff, carrying
them away from their original location.
Slope and
Topography: Steep slopes are more prone to erosion as gravity aids in the
movement of soil particles downhill.
Vegetation
Removal: Deforestation or clearing of vegetation for agriculture or
construction exposes soil to erosion by removing the protective cover of
vegetation.
Overgrazing:
Excessive grazing by livestock can lead to the removal of vegetation cover,
exposing soil to erosion by water and wind.
Improper Land
Use: Poor agricultural practices such as inappropriate tillage methods,
monoculture farming, and leaving fields bare between cropping seasons
contribute to soil erosion.
Construction Activities: Construction activities, especially those involving land clearing and grading, disturb the soil surface, making it vulnerable to erosion by water.
Sheet Erosion:
Occurs when a thin layer of soil is removed uniformly from the surface by
runoff water, often leaving behind a smooth surface. It's commonly seen on
agricultural fields.
Rill Erosion:
Develops when runoff water concentrates into small channels or rivulets,
carving out narrow channels in the soil. Rill erosion is more severe than sheet
erosion and can deepen over time.
Gully Erosion:
This is the most severe form of water erosion, characterized by the formation
of deep and wide channels in the landscape due to concentrated water flow.
Gullies can significantly alter the topography and lead to the loss of large
amounts of soil.
Ephemeral
Erosion: Occurs during sudden and intense rainfall events, resulting in the
rapid erosion of soil from the surface. It's often associated with flash floods
and can cause significant damage to landscapes and infrastructure.
Splash Erosion:
The initial stage of erosion, where raindrops detach soil particles and splash
them onto nearby surfaces. While it doesn't cause significant soil loss on its
own, it can contribute to other forms of erosion by loosening soil particles.
Q2. Describe Universal
Soil Loss Equation (USLE) for estimation of water erosion losses along with
defining its various terms.
Q3. Describe the
processes of wind erosion. Explain the factors affecting wind erosion.
Q4. Describe
biological and agronomic measures to control soil erosion.
Q5. Define artificial
groundwater recharge. Write advantages of artificial groundwater recharge.
Enlist methods of artificial groundwater recharge.
BNRI 103 Solved
Assignment 2024-25 : All assignments are in PDF format which would be send
on email/WhatsApp (9958676204) just after payment.
BNRI 103 Solved
Assignment 2024-25, BNRI 103 Solved Assignment 2024-25, BNRI 103 Solved Assignment
2024-25, BNRI 103 Assignment, IGNOU
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IGNOU BNRI 103 Solved
Assignment 2024-25 :- Those students
who had successfully submitted their Assignments to their allocated study
centers can now check their Assignment Status. Alongside --assignment status,
they will also checkout their assignment marks & result. All this is often
available in a web mode. After submitting the assignment, you'll check you BNRI
103 Solved Assignment 2024-25 only after 3-4 weeks. BNRI 103 Solved Assignment 2024-25
it'd take 40 days to declare BNRI 103 Solved Assignment 2024-25
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