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WST 505 SOIL AND WATER CONSERVATION AND SEDIMENT TRANSPORT                                                                               (3L +0P) I

Objective
To acquaint and equip the students with the process of land degradation due to soil erosion and its conservation, including design of  str uctures and sediment transport in river beds and its accumulation in reservoirs.

Theory

UNIT I
Concept of soil and water conservation, relevance of soil and water conservation in agriculture. Problems caused by soil erosion, factors affecting soil erosion.

UNIT II
Types of soil erosion, mechanics of water erosion, factors affecting water erosion, moisture stress and excess, effect of land preparation and cultivation practices on soil erosion. Layout and planning soil erosion control measures. Erosivity and erodibility, Measurement of soil erosion. Hydraulic jump and energy dissipater for erosion central structures;

UNIT III
Design of soil conservation structures, farm ponds and temporary storage reservoirs, drop structures, chute spillways. Aforestation and associated agronomic practices, role of soil and water conservation work-river valley projects, Soil Conservation Department, CADA, etc. Flood control and stream bank protection measures

UNIT IV
Sediment yield and transport, estimation of transported sediment, effective life of dams and water detention structures, multipurpose storage zones, reservoir yield and capacity, determination life of multipurpose reservoirs, erosion of water conveyance systems, designs of channels for erosion control, tractive or face theory, maximum permissible velocity.

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