PPT-‘The erosion of childhood’

Kay Tisdall ktisdalledacuk Useful concepts from moral panics Stages to moral panics Who are the moral entrepreneurs Who are the experts The morality within the erosion of childhood discourse Garland 2008. Soil erosion and sediment control is not a new technology The USDA Soil Conservation Service and a number of State and local agencies have been developing and promoting the use of erosion and sediment control devices for years This chapter provides Anticipated Problem: . What is soil erosion?. I. . Soil erosion . is the process by which soil is moved. When soil is eroded, it may become pollution in the water or air. The land where it came from, loses fertility. Vegetation and other coverings help prevent soil erosion. . * Earth’s main agent of natural erosion. What is erosion?. Erosion is. -. Agents of Erosion. Agents of erosion include. . --. Running water . is the. . big. . Kahuna. . of. . all. . erosional. Rain . Splash. Sheet. Rill. Gully . Heavy . rains in northwest Iowa washed away soil, leaving this scarred tableau. This type of erosion, termed sheet-and-rill erosion, occurs when there is insufficient vegetation to hold soil in place. As rain falls, it forms sheets of surface water that transport soil away. As more water accumulates, it forms runoff channels called rills, which further displace soil.. Weathering. The breakdown do the materials of Earth’s crust into smaller pieces.. Physical Weathering. Process by which rocks are broken down into smaller pieces by external conditions.. Types of Physical weathering. Chad Lentz. Why Care?. Removes valuable topsoil. Carries away expensive nutrients. Increase tillage costs to fix. Creates algae blooms and dead zones due to excess nutrients in waterways. Types of Erosion. Chapter 7. Section 7.1 Weathering. Weathering is the process by which rocks on or near Earth’s surface break down and change. . Erosion is the removal and transport of weathered material from one location to another.. Antony . Lenehan. Remote Sewerage Treatment and Effluent Disposal. Site and soil. Effluent quality and quantity. Application systems- above ground or below ground. Crop/vegetation . s. election and management. Learning objectives. To be able to . define. the . five . processes of . marine coastal . erosion. .. To be able to . explain. the . factors. . affecting coastal erosion.. To describe . the difference between concordant and discordant . Nancy . Rogel. Eddie . Guadarrama. . Outline. What is Soil Erosion. Types of Erosion. Factors Affecting Erosion Rates. Human Activities that increase Erosion Rates. How to Prevent Erosion. What is Soil Erosion. PROCESSES. Generate runoff. Saturation excess. Infiltration excess. INFLUENCES. Hydraulic soil properties. Conductivity. Compaction/use history. Ground cover (interception). Antecedent conditions. Existing moisture. Lesson 1. Water Erosion. How does Moving Water Cause Erosion?. Erosion is the process in which sediment that has been broken down through weathering is moved.. Agents of Erosion are:. Water. Wind. Glacial (ice). La gamme de thé MORPHEE vise toute générations recherchant le sommeil paisible tant désiré et non procuré par tout types de médicaments. Essentiellement composé de feuille de morphine, ce thé vous assurera d’un rétablissement digne d’un voyage sur . WHAT IS COASTAL EROSION? Coastal erosion is the endless reshaping of shorelines by waves, currents, tides, storms, ice, rain and groundwater seepage. Human activities, like construction, dredging, CO