Soil as a System A.S: Topic 7: A – D

Slides:



Advertisements
Similar presentations
Soil: A Renewable Resource PA Standards  C: Unifying Themes  B: Technological Devices  C: Ecosystems and their Interactions “Land,
Advertisements

Soils!.
Weathering and Soil Formation
What are we going to learn…  Soil-Why is it important? Why is it important?  What is soil?  Sand, Silt and Clay  What’s a soil profile?  Horizons?
Soil Basics AP Environmental Science. SOIL ≠ DIRT.
The Fabulous World of Soil Soil What is it? What is it made of?
Soil.
7-4.4 SOIL QUALITY. Soil is one of the most valuable abiotic factors in an ecosystem because everything that lives on land depends directly or indirectly.
The foundation for life!
Soil: “No soil, NO planet Earth”
Notes on Soil.
Soil in Anchorage, Alaska, is very shallow
Soil Defined as the part of dirt that will support life
Introduction to Soil Systems 5.1
Soil.
The Nature of Soil Essential Question:
Chapter 2 Section 2 Pages How Soil Forms Chapter 2 Section 2 Pages
Characteristics Texture Soil Profile Soil Types Threats to Soil
What is the composition of soil?
The Nature of Soil Essential Question:
Soil Formation Soil is an important natural resource
The Dirt on Soil Copyright © Houghton Mifflin Harcourt Publishing Company.
Soils.
3.2 - Soils Discuss why soil is an important resource.
Soil Formation.
Soil Formation.
5.1 - Introduction to Soil Systems - TASK 1
Topic 5: soil & terrestrial food production systems
*Take out your “Soils” web quest.*
Soil.
Soil 7.EC.5A.2 Construct explanations of how soil quality (including composition, texture, particle size, permeability, and pH) affects the characteristics.
Soil Quality
Soil An interface in the Earth system, a boundary between different systems (biosphere, lithosphere, atmosphere). Soil is a combination of mineral matter,
The Ground Beneath Our Feet
How do soils form? Processes 5.1 Introduction to soil systems
The Nature of Soil Essential Question:
What is a soil profile? Cross section of soil layers revealing all soil horizons O Horizon = organic material (humus) A Horizon = topsoil B Horizon =
Topic 5.1: Introduction to soil systems
Soil Base Different climates create wet climate or dry climate soils
Soil.
All About Soil.
Intro to Terrestrial Investigations
DO NOW Pick up notes and Review #24. Turn in Review #23.
Soil Regolith – layer of rock and mineral fragments produced by weathering Soil – part of regolith that supports plant growth.
Lithosphere & Soil ; ;
8th Grade: The Dynamic Earth (Module E)
7.EC.5A.2 Construct explanations of how soil quality (including composition, texture, particle size, permeability, and pH) affects the characteristics.
The Ground Beneath Our Feet
Soil Tests & Profiles.
SOIL.
What is the composition of soil?
Soil
SOIL Don’t Call it Dirt.
Chapter Soils.
What is the composition of soil?
Soil.
Module 25 Weathering and Soil Science
Chapter Soils.
The Ground Beneath Our Feet
Soil Formation Lesson 3.
3-3 Cycles of Matter.
Lithosphere & Soil ; ;
Characteristics Texture Soil Profile Soil Types Threats to Soil
What is the composition of soil?
Composition Formation Erosion Profile
What is the composition of soil?
Soils.
Weathering.
Week 3: Lesson 2 and 3 Soils and Relationships
Soil and Soil Profiles.
Presentation transcript:

Soil as a System A.S: Topic 7: A – D Topic 7: Lithosphere Soil as a System A.S: Topic 7: A – D

Lithosphere - Litho = Stone/Rock - The thin crust between the mantle and the atmosphere. - Made up mostly of oxygen(47%), silicon(28%), aluminum(8%) and iron(5%). - Only the top 1% of the lithosphere interacts with the biosphere and is influenced by the atmosphere and hydrosphere = soil (a very thin bridge between the biosphere and the lithosphere)

Soil: Abiotic & Biotic Aspects - Abiotic Factors: a mixture of rock, mineral particles, inorganic nutrients, water, and air in the spaces between the soil particles. - Biotic Aspects: - Plants and animals help to make new soil They defecate, die, and decompose, adding organic matter. Organic matter helps deliver the right amount of moisture and nutrients to plants. - Plants roots hold soil together, which reduces erosion. - Bacteria and Fungi aid in decomposition and weathering, therefore they aid in the formation of soil. - Soil is their habitat.

Soil as a System What kind of system is soil? Inputs –weathering of parent material, precipitation, infiltration of water, heat, acid deposition, decomposition, organism movement, and nutrients (cycles). Outputs –leaching, uptake by plants, erosion, nutrients (cycles), evaporation, heat, percolation of water, and organism movement. Storage – = heat (affecting atmospheric temperature), nutrients, biotic organisms Inputs = weathering of parent material, precipitation, infiltration of water, heat, acid deposition, decomposition, organism movement, and nutrients (cycles). Outputs = leaching, uptake by plants, erosion, nutrients (cycles), evaporation, heat, percolation of water, and organism movement. Storage = heat (affecting atmospheric temperature), nutrients, biotic organisms

Soil Profile (See Soil Profile handout) - Layers of soil are called Horizons - Humus =decomposing organic material; dark brown or black in color

Soil as a Resource - Why is soil considered a resource? - Soil is considered a non-renewable resource. Why?

How does Soil Structure Affect Primary Productivity? What is Primary Productivity again? See table handout. Primary production is responsible for most of the life on Earth. This is the process by which plants convert the carbon dioxide that they have absorbed from the atmosphere and ocean into various other chemical substances. These chemical substances then provide the structure from which an ecosystem can emerge as animals of various kinds consume plant nutrients and develop a food chain. The factors affecting primary productivity are as complex as natural ecosystems are.

Composition of Loam Soil

Measuring Soil Texture - Soil Texture = the relative make up of the soil in regards to particle size: Percentages of sand, silt, and clay - Method for measuring soil texture: Begin by drying the soil out. Then pass it through a series of sieves with decreasing mesh sizes. This will separate the soil by size. Use a Soil Texture Triangle diagram to determine the type of soil you have.

Measuring the Slope - The steepness of an area. Why would this be an important factor to measure for soil? - Can be measured by measuring the rise (height) and the run (length). Use a tape measure and a field level.

Measuring Soil Moisture - How could you measure how much moisture is in a sample of soil?