PPT-Soils

Soils We know more about the movement of celestial bodies than about the soil underfoot Leonardo da Vinci Soil Definition Solid earth material that has been altered by physical chemical and organic processes so that it can support rooted plant life. Sedzani. . Elia. . Muravha. 12 January 2012. Introduction………………………………………………………….... Characteristics of expansive soils…………………………………... Rainscaping:. Soils 101. . Soils 101. Living, breathing dynamic system. Chemical, . physical . and biological characteristics. Soil . Formation -- 5 . Influencing Factors. C. limate . -. weathering, freeze, thaw, wetting, drying. What is soil?. Soil is the layer of loose material on the. earth’s surface. Without soil, we would not. be able to grow crops and plants. . Therefore, there would be no food for. animals or for people. It is therefore a very. Plant Material Maintenance. Soil. Soil is the top . layer of . the Earth’s crust. .. Millions of years to make. Being lost at a rate of 5.2 tons/acre/year (Iowa state-wide average). SOLIDS +. PORE SPACE =. Dru. Yates. dru.e.yates@gmail.com. Learning Objectives. List . and describe the 5. . factors of soil formation. List and describe the 4. . soil forming processes. Be familiar with common soil horizons and corresponding lowercase suffixes used to describe these horizons. CLORPT for short. Soils differ from one part of the world to another, even from one part of a backyard to another. . They differ because of where and how they formed. And over time, five major factors control how a soil forms. These factors are . Munwar Sultana Solangi. Lady Instructor. Agriculture Training Institute. Sakrand. An . agricultural.  definition of soil is "a dynamic natural body on the surface of the earth in which plants grow, composed of mineral and organic materials and living forms". University of California Cooperative Extension. Our agenda for today. Basic soil principles. The things we add to our soils. Amendments. Mulches. Compost. Fertilizers. Soils for the Gardener. Why are Soils Important to Sustainability?. Tundra comes from the Finnish . tunturia. ,. which means barren . or treeless land. However, the . tundra is not really barren. A . diversity of low growing plants . – including a few dwarf trees . Most forests are not too . hot. , or not too . cold. , and have moderate amounts of precipitation. . ALFISOL. Moderately Weathered. SPODOSOL. Sandy, Acidic. There are two main types of forests. . Pine forests have ashy white layers (. Most of . OUR FOOD . comes from the Prairies!. Including corn, wheat and soybeans…. Can you think of things that are made out of these products?. Prairie . Soils. are a type of . GRASSLAND. . . It is too . The . 6. Functions of Soils. SOIL. Medium for plant growth. System for water supply and purification. Recycling system for nutrients and organic wastes. Habitat for . soil organisms. Engineering medium. Soils support the growth of higher plants by providing a medium for plant roots and supplying nutrient elements that are essential to the entire plant.. Soil properties are the principal factor controlling the fate of water in the hydrologic system. Water loss, utilization, contamination and purification are all affected by the soil.. Samantha L. Colunga. 1*. , Leila Wahab. 2. , Engil Pereira. 1**. 1. School of Earth, Environmental, and Marine Sciences, The University of Texas Rio Grande Valley. 2. School of Natural Sciences, University of California Merced.