Soil Erosion and Conservation
Teacher
Dr. Rahul Adhikary
Category
Core Courses
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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 5
Forms of soil erosion; effects of soil erosion and factors affecting soilerosion;
Session 6
Forms of soil erosion; effects of soil erosion and factors affecting soilerosion;
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.
Session 13
Methods of measurement and prediction of runoff; soil losses in relation to soil properties and precipitation.
Session 14
Measurement and prediction of runoff; soil losses in relation to soil properties and precipitation.
Session 17
Principles of erosion control; erosion control measures – agronomical and engineering; erosion control structures - their design and layout
Session 18
agronomical and engineering; erosion control structures - their design and layout
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.
Session 22
Soil conservation in special problem areas such as hilly, arid and semi-arid regions,waterlogged and wet lands.
Session 23
Watershed management - concept, objectives and approach; water harvesting and recycling;
Session 24
Watershed management - concept, objectives and approach; water harvesting and recycling;
Session 26
Watershed management - concept, objectives and approach; water harvesting and recycling;
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,
Session 2
Determination of different soil erodibility indices - suspension percentage, dispersion ratio, erosion ratio, clay ratio, clay/moisture equivalent ratio, percolation ratio,
Session 3
Determination of different soil erodibility indices - suspension percentage, dispersion ratio, erosion ratio, clay ratio, clay/moisture equivalent ratio, percolation ratio,
Session 4
Soil suspension percentage, dispersion ratio, erosion ratio, clay ratio, clay/moisture equivalent ratio, percolation ratio, raindrop erodibility index
Session 5
Soil suspension percentage, dispersion ratio, erosion ratio, clay ratio, clay/moisture equivalent ratio, percolation ratio, raindrop erodibility index
Session 14
Soil suspension percentage, dispersion ratio, erosion ratio, clay ratio, clay/moisture equivalent ratio, percolation ratio, raindrop erodibility index
Session 16
Field visit
E- material
Question bank
Our Main Teachers
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 […]