Soil Erosion and Conservation

Teacher

Dr. Rahul Adhikary

Category

Core Courses

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Course name: Soil Erosion and Conservation

Course(Credit): SOIL 0505   (2-1-0)

                 

Course  : 

Objective:

  • To enable students to understand various types of soil erosion and measures to betaken for controlling soil erosion to conserve soil and water.

Course outcome (CO- PO maping)

  • After learning the topic a student will be able to know about-
COs Course outcomes Mapping COs with POs
CO1 The various types of soil, water and wind erosion along with its mitigation measures. PSO1
CO2 The agronomic and engineering methods of conservation and the design of bunds and terraces being implemented on the field PSO2

PSO-Program specific outcomes

PSO1 : Impart knowledge and understanding of fundamental concepts and techniques of maintaining and enhancing soil fertility, crop production, crop management, crop improvement, biodiversity and sustainability of agriculture worldwide.

PSO2 : Develop the ability to know farming practices and their scope to improve in the rural areas and the environments.

PSO3 : Apply knowledge of basic science through Agricultural microbiology, Plant biochemistry and Biotechnology.

PSO4 : Apply knowledge of Agri-business management and finance to develop profitable agricultural system.

Theory

UNIT I: History, distribution, identification and description of soil erosionproblems in India.

UNIT II: Forms of soil erosion; effects of soil erosion and factors affecting soilerosion; types and mechanisms of water erosion; raindrops and soil erosion;rainfall erosivity - estimation as EI30 index and kinetic energy; factors affectingwater erosion; empirical and quantitative estimation of water erosion; methods of measurement and prediction of runoff; soil losses in relation to soil properties andprecipitation.

UNIT III: Wind erosion- types, mechanism and factors affecting wind erosion; extent of problem in the country.

UNIT IV: Principles of erosion control; erosion control measures – agronomical and engineering; erosion control structures - their design and layout.

UNIT V: Soil conservation planning; land capability classification; soil conservation in special problem areas such as hilly, arid and semi-arid regions,waterlogged and wet lands.

UNIT VI: Watershed management - concept, objectives and approach; water harvesting and recycling; flood control in watershed management; socioeconomic aspects of watershed management; case studies in respect to monitoring and evaluation of watersheds; use of remote sensing in assessment and planning of watersheds, sediment measurement

 

Practical

  • Determination of different soil erodibility indices - suspension percentage, dispersion ratio, erosion ratio, clay ratio, clay/moisture equivalent ratio, percolation ratio, raindrop erodibility index
  • Computation of kinetic energy of falling rain drops
  • Computation of rainfall erosivity index (EI30) using rain gauge data Land capability classification of a watershed
  • Visits to a watersheds

Reference

Biswas TD & Narayanasamy G. (Eds.) 1996. Soil Management in Relation to Land Degradation and Environment. Bull. Indian Society of Soil Science No. 17.

Doran JW & Jones AJ. 1996. Methods of Assessing Soil Quality. Soil Science Society of America, Spl Publ. No. 49, Madison, USA.

Gurmal Singh, Venkataramanan C, Sastry G & Joshi BP. 1990. Manual of Soil and Water Conservation Practices. Oxford & IBH.

Hudson N. 1995. Soil Conservation. Iowa State Univ. Press.

Indian Society of Soil Science 2002. Fundamentals of Soil Science. ISSS, New Delhi.

Session plan (Theory)

Session 1

History, distribution, identification

Introduction

Video

Session 2

Distribution and identification of eroded soils

Distribution of eroded soil

Video

Session 3

Description of soil erosion problems in India

Soil erosion in india

Video

Session 4

Description of soil erosion problems in India

Soil erosion in india

Video

Session 5

Forms of soil erosion; effects of soil erosion and factors affecting soilerosion;

Forms of soil erosion

Video

Session 6

Forms of soil erosion; effects of soil erosion and factors affecting soilerosion;

Forms of soil erosion

Video

Session 7

Types and mechanisms of water erosion

Mechanisms of water erosion

Video

Session 8

Types and mechanisms of water erosion

Mechanisms of water erosion

Video

Session 9

Types and mechanisms of water erosion

Mechanisms of water erosion

Video

Session 10

Estimation as EI30 index and kinetic energy

Video

Session 11

Estimation

Water erosion estimation as EI30 index and kinetic energy

Video

Session 12

Factors affecting water erosion; empirical and quantitative estimation of water erosion;

methods of measurement and prediction of runoff; soil losses in relation to soil properties and precipitation.

Factors video

Soil loss

Session 13

Methods of measurement and prediction of runoff; soil losses in relation to soil properties and precipitation.

Factors video

Video

Session 14

Measurement and prediction of runoff; soil losses in relation to soil properties and precipitation.

Factors video

Universal soil loss equation

Session 15

Wind erosion- types, mechanism and factors affecting wind erosion;

Wind erosion

Video

Session 16 

Wind erosion and its control measures

Wind erosion

video

Session  17

Principles of erosion control; erosion control measures – agronomical and engineering; erosion control structures - their design and layout

.wind erosion control measures

Water erosion measures

Session 18

agronomical and engineering; erosion control structures - their design and layout

.wind erosion control measures

video

Session 19

water erosion and its measures

Water erosion measures

Video

Session 20 

Wind erosion and its effect of erosion

Water erosion measures

Session 21

Soil conservation planning; land capability classification; soil conservation in special problem areas such as hilly, arid and semi-arid regions,waterlogged and wet lands.

Land cability class

Video

Session 22

Soil conservation in special problem areas such as hilly, arid and semi-arid regions,waterlogged and wet lands.

Land cability class

Video

Session 23

Watershed management - concept, objectives and approach; water harvesting and recycling;

Water shed management

Video

Session 24

Watershed management - concept, objectives and approach; water harvesting and recycling;

Water shed management

Video

Session 25

Flood control

Flood control in watershed management

Video

Session 26

Watershed management - concept, objectives and approach; water harvesting and recycling;

Water shed management

Video

Session  27

use of remote sensing in assessment and planning of watersheds, sediment measurement

Notes

Video

Session  28

Use of remote sensing in assessment and planning of watersheds, sediment measurement

Notes

Video

Session  30

Case studies in respect to monitoring and evaluation of watersheds

Case study

Session 31

Case study in respect to monitoring evaluation of watershed

Case Study

Session 32

Revision

Practical

Session 1

Determination of different soil erodibility indices - suspension percentage, dispersion ratio, erosion ratio, clay ratio, clay/moisture equivalent ratio, percolation ratio,

Erodibility indices

Different soil erodibility

Session 2

Determination of different soil erodibility indices - suspension percentage, dispersion ratio, erosion ratio, clay ratio, clay/moisture equivalent ratio, percolation ratio,

 

Different soil erodibility

Session 3

Determination of different soil erodibility indices - suspension percentage, dispersion ratio, erosion ratio, clay ratio, clay/moisture equivalent ratio, percolation ratio,

Erodibility indices

Session 4

Soil suspension percentage, dispersion ratio, erosion ratio, clay ratio, clay/moisture equivalent ratio, percolation ratio, raindrop erodibility index

Soil suspension and erodibility

Session 5

Soil suspension percentage, dispersion ratio, erosion ratio, clay ratio, clay/moisture equivalent ratio, percolation ratio, raindrop erodibility index

Soil suspension and erodibility

Session 6

Computation of kinetic energy of falling rain drops

Video

Session 7

Computation of kinetic energy of falling rain drops

Video

Session 8

Computation of rainfall erosivity index (EI30) using rain gauge data Land capability classification of a watershed

Video

Session 9

Computation of rainfall erosivity index (EI30) using rain gauge data Land capability classification of a watershed

Video

Session 10

Raindrop erodibility index

Video

Session 11

Raindrop erodibility index

Video

Session 12

Visits to a watersheds

Watershed visit

Session 13

Visits to a watersheds

Watershed visit

Session 14

Soil suspension percentage, dispersion ratio, erosion ratio, clay ratio, clay/moisture equivalent ratio, percolation ratio, raindrop erodibility index

Soil suspension and erodibility

Session 15

Soil percolation ratio, raindrop erodibility index

Soil suspension and erodibility

Session 16

Field visit

E- material

SWC notes

Question bank

SWC question bank

Our Main Teachers

Dr. Rahul Adhikary

Research and Teaching
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Associate Professor Centurion University of Technology and Management Department of Soil science and Agricultural chemistry Paralakhemundi, Odisha, India. I have completed my Ph.D. in Soil Science (SWC) from Bidhan Chandra Krishi Visvavidyalaya in 2015 and get Ph.D degree certificate.I am prepared to substantially benefit our institute through imparting my skills of cracking different national level […]

  Present Position Associate Professor (Soil Science),MSSSoA, CUTM Mobile: 91-9439353031 , E-mail: arunabha@cutm.ac.in Education Bachelor of Science (Agriculture). Dr. B. R. Ambedkar University, Agra, India in 2008 Master of Science (Soil and Water Conservation). Bidhan Chandra Krishi Viswavidlaya –(BCKV), Nadia, West Bengal, India in 2010 Research topic Water Requirement of Tuberose (Polianthes tuberosa L.) PhD […]