GLY 101 1st Edition Lecture 20Outline of Last Lecture I. WeatheringA. Mechanical Weathering B. Chemical WeatheringSoil FormationA. Soil ProfileOutline of Current Lecture II.Classifying SoilsIII. Impact of Human Activities on SoilCurrent LectureII.Classifying Soils- the system of classifying soils is known as the Soil Taxonomy- the soil taxonomy emphasizes the physical and chemical properties of the soil profile- there are 6 hierarchical categories of classification- there are 12 soil ordersIII. Impact of Human Activities on Soil- soil erosion is a natural process- clearing of the tropical rain forest is damaging the soil- when humans clear rain forests, plant nutrients are removed and soilerosion is accelerated- vegetation helps protect soil from eroding by its roots being anchored in the groundThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- removal of vegetation also exposes the ground to direct sunlight, thiscauses the soil to bake and become brick-like- ways to slow down soil erosion: planting crops, creating grassed waterways, grass planted along
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