Soil Composition and Properties
Liam Thomas
7 min read
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Study Guide Overview
This study guide covers soil science fundamentals, focusing on soil composition (sand, silt, clay), soil properties (physical, chemical, and biological), water-holding capacity, the soil texture triangle, and their impact on plant growth. It includes practice questions and tips for the AP Environmental Science exam.
#Soil Science: The Ultimate Study Guide 🌿
Hey there, future AP Environmental Science superstar! Let's dive into the fascinating world of soil, which is way more exciting than it sounds, I promise! This guide is designed to be your go-to resource the night before the exam, so let's make every minute count.
#Soil Composition and Properties
#Water-Holding Capacity and Retention
- Water-holding capacity is the amount of water soil can hold against gravity.
- Smaller particles = higher water retention. Think of it like tiny sponges!
- Organic matter increases water retention because it acts like a sponge.
- Loam is the goldilocks of soil types, with a balanced mix of particle sizes for optimal water retention.
#Particle Sizes and Properties
Remember that soil properties are interconnected. Changes in one area often affect others.
- Porosity: How much pore space there is in soil. Larger particles = larger pores = higher porosity.
- Permeability: How easily water and nutrients move through soil. Larger particles = higher permeability.
- Fertility: The soil's ability to support plant growth. Depends on nutrients (N, P, K), and organic matter.
#Chemical, Physical, and Biological Properties of Soil
#Chemical Properties
Think pH and Cation Exchange when you think about chemical properties. ...
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