Sedimentary Processes II by Mijon Tangye SOIL www

Sedimentary Processes II by: Mijon Tangye SOIL www. hdwallpaperscool. com

Soil ● World’s most important natural resources ● Forms the surface skin over the landscape of the Earth ● Consists of a mixture of mineral grains

www. impactsandandgravel. com Why does Soil matter? ● Supporting growing crops, plants, etc. ● Filter removing pollution from water ● Protects history and our past ● Foundation of buildings and roads

How does Soil form? ● Time ● Climate ● Parent Material ● Topography ● Organisms www. 123 rf. com wallpaperswide. com http: //nesoil. com www. wageningenur. nl

Soil Texture Triangle Ex. Silt- 15% Clay- 35% Sand- 50% chemcentre. wa. gov. au www. ctahr. hawaii. edu

Soil Horizons ● O horizon- Organic matter ● A horizon- Topsoil ● E horizon- Eluviated ● B horizon- Subsoil ● C horizon- Parent Material ● R horizon- Bedrock en. wikipedia. org

Soil Orders Alfisol- moderately leached Andisol- formed in volcanic ash Entisol- little or no morphological development Histosol- organic soils Inceptisol- weakly developed subsurface horizons Mollisol- grassland soils with high base status Oxisol- highly weathered soils Ultisol-strongly leached soils Vertisol-clay rich soils Gelisol Spodosol Aridisol en. wikipedia. org

Soil Erosion ● Natural occurring process ● Affects all landforms ● Wearing away of topsoil ● Natural forces act on the soil ● More exposed heavy tilled soil is = more likely it is to erode during rain or windstorms. peoplescompany. com

Preventing Soil Erosion ● Increase Vegatation ● Fertilizers ● Retaining walls ● Improve Drainage hwww. ndsu. edu/ns. html

References: http: //www. hdwallpaperscool. com/soil-desktop-wallpapers/ http: //www. soil-net. com/dev/page. cfm? pageid=secondary_intro_what http: //chemcentre. wa. gov. au/News-Events/News/What-is-Soil-Guest-Editorial-by-Katrina-Walton https: //www. youtube. com/watch? v=4 h. W 59 WZ 0 EQI http: //nesoil. com/plymouth/formation. html https: //en. wikipedia. org/wiki/Soil_horizon http: //www. cals. uidaho. edu/soilorders/orders. htm http: //www. eschooltoday. com/soils/factors-that-affect-soil-formation. html http: //www. britannica. com/science/regolith http: //study. com/academy/lesson/soil-erosion-effects-prevention. html http: //www. landscapeplanet. com/maintenance-1 -soil-erosion-prevention. htm https: //www. ndsu. edu/pubweb/chiwonlee/plsc 211/student%20 papers/articles 11/amandour/co nditions. html http: //www. wikihow. com/Prevent-Soil-Erosion http: //www. bswm. da. gov. ph/Philippines. Soils/Soil. Orders https: //www. blendspace. com/lessons/i. Fj. A_w. Ex. IISQ 8 Q/copy-of-how-do-we-stop-soil-erosion http: //www. earthonlinemedia. com/ebooks/tpe_3 e/soil_systems/soil__development_soil_forming_factors. html

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