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Agri Engineering

Types of Erosion

It broadly classified in to two: A. Geologic erosion: B. Accelerated Erosion:     1. Wind Erosion     2. Water Erosion. Raindrop/ splash erosion. Sheet erosion. Rill erosion. Gully erosion. Stream erosion. C. Other types of Soil erosion: Glacial erosion Snow erosion Organic erosion Anthropogenic erosion A. Geologic erosion: It refers to the …

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Factors Affecting Soil & Water Erosion

Factors Affecting Soil Erosion Factors such as rainfall, runoff, wind soil, slope, plant cover and presence or absence of conservation measures are responsible for soil erosion. But mainly three following factors affect the erosion. 1. Energy: It include The potential ability of rainfall, runoff and wind to course erosion and …

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Measures for Soil and Water Conservations

It is the technique in which deterioration of soil and it looses is reserve by using it within its capabilities and applying conservation technique for production as well as improvement of soil. Soil and Water Conservation Measures Agronomical Measure ( Biological)  Engineering Practices 1. Contour cultivation  1. Terracing 2. Strip …

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Terracing

Terracing: “A terrace is an embankment or ridge of earth constructed across a slope to control runoff and minimize soil erosion”. A terrace reduces the length of the hill side slope, there by reducing sheet and rill erosion and prevents formation of gullies. Types of Terraces: There are two measure …

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Contour and Graded Bunding

Contour Bunding Counter Bunding are carried out in many parts in India- notably in Maharashtra, Gujarat, Tamilnadu, Karnataka and Andhra Pradesh. Contour Bunding: It consists of building earthen embankments across the slope of the land, following the contour as closely as possible. A series of such bunds divide the area …

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Types of Pumps

Basically four principles involved in pumping water: Atmospheric pressure. Positive displacement Centrifugal force Movements of columns of water caused by the difference in specific gravity.  Pump Characteristic: Terminology: Capacity: It is volume of water pumped per unite time. It is measured in liters seconds. Static suction head: It is vertical …

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Concepts of Watershed Management

Soil, vegetation and water are most important vital natural resources for the existence of the man and his animals. These three interdependent resources can bee managed collectively, conveniently, simultaneously and efficiently on watershed basis (unit of management.) Watershed: Definition: “Watershed can be defined as a unit of area covers all …

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Classification of Watershed

A. A large numbers of terms are very frequently and loosely used to classify watershed in different sizes [based on size] a. Micro watershedsb. small watershedsc. Large watersheds, etc Small watersheds: “Small watersheds are those where the overland flow is the main contributor to peak runoff / flow and channel characteristic …

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Watershed Management

Definition: “Watershed management is a concept which recognizes the judicious management of three basic resources of soil water and vegetation, on watershed basis, for achieving particular objective for the well being of the people”. It includes treatment of land most suitable biological as well as engineering measures. Objective of watershed …

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