Land prone to erosion Kitty Hawk, NC People like to live where there is a good view so what type of place does this mean?

River? Beach? Lake? Is this a good place to live? La Conchita Is this a good place to live? People must always battle erosion problems – naturally and some manmade. Is this a good place to live? Kitty Hawk after Hurricane Sandy 2012

Reducing erosion Reduced by planting vegetation to help hold down soil and absorb water.

Retaining walls: made of concrete, stone, wood, or railroad ties. Slow down erosion by gravity! Can keep rocks and soil from sliding downhill. Also can be built along stream channels, lakes, or ocean beaches to reduce erosion caused by flooding, running water, or waves.

Protection from water erosion Water erosion: water erodes more sediments than any other agent of erosion does. WHY? It usually has more energy of motion. Neuse River

Ex. Rill erosion (small and narrow channels)

Ex. Gully Erosion in dry area

Banaue Rice Terraces, Ifugao Province, Philippines Terrace: broad, steplike cuts made into the side of a slope.

When water flows onto a terrace it slows down, has less energy and can not erode as much. Terraced vineyards in Switzerland

Intihuatana ruins at Pisac, Peru The Incas constructed the terraces on the slopes of the Andes mountains. They cut step-like ledges into the mountainside, so they could be used as field, where they planted crops. Using terraces also stopped the rain from washing away the soil. This technique was so successful, it is still used in the Andes Mountains.

Protection from wind erosion Abrasion Erodes by deflation and abrasion Desert pavement

https://www. youtube. com/watch https://www.youtube.com/watch?v=yF1E1B9uZf8&list=PLSVaDF_Ya114AOUjpEAq_tH_8TYnd0r3Y Dunes Most common wind deposits and constantly change as wind erodes them. Christmas trees Slow down erosion of dunes by allowing sediments to pile up behind an obstacle (ex. Christmas tree or rock). http://highered.mcgraw-hill.com/sites/0072402466/student_view0/chapter13/animations_and_movies.html#

Beach grasses and fencing help trap sand Beach grasses and fencing help trap sand. Fences also keep people of dunes Robert Moses State Park Long Island NY

Jockey’s Ridge Nag’s Head, NC Tallest living natural sand dune system in the Eastern United States Jockey’s Ridge Nag’s Head, NC

Dune rolling over the maritime forest Jockey's Ridge is an example of a medano—a huge hill of shifting sand that lacks vegetation.

This tornado over Jockey's Ridge started out as a waterspout on the Roanoke sound and moved East over the sand dunes picking up sand into the funnel for several hundred vertical feet. 6/22/05 Dune boarding

Preventing wind erosion on farm land Windbreaks - rows of closely spaced trees and shrubs planted at right angles to the prevailing winds to protect crops, soil, animals and buildings.