Soil Horizons & Components
What is Soil Profile.
The Dust Bowl lasted for how long.
What is a decade?
What is the name of the diagram used to classify soil texture based on percentages of sand, silt, and clay?
Soil Texture Triangle
The process in which nutrients are recycled within an ecosystem
What is Nutrient Cycles
The 3 types of soil properties
1) Physical 2) Chemical 3) Biological
The topmost layer of the Soil Profile
This 1935 storm, the most catastrophic in Dust Bowl history, is referred to as the day "the sky turned black."
What is Black Sunday.
How many different soil textures are there in the soil texture triangle?
What is 12
What is the primary process by which nitrogen gas in the atmosphere is converted into a form plants can use, often facilitated by leguminous plants?
Nitrogen Fixation
This chemical soil property, measured on a scale from 0 to 14, affects nutrient availability and microbial activity, with most plants preferring a range of 6 to 7.
What is soil PH
The R Horizon is also known as this.
What is Bedrock.
This 1920s agricultural frenzy, fueled by tractors and high wheat prices, plowed up millions of acres of prairie sod, setting the stage for disaster.
What is the "Great Plow Up"
The three sides so the Soil Texture Triangle are the percentages of what?
The 3 most important macronutrients for soil.
Nitrogen (N), Phosphorous (P), Potassium (K)
In the raindrop illustration, if 5 rain drops fell on loamy soil what happens?
3 go to the plant, 1 is lost to runoff, and 1 goes through the soil
The most critical Soil Horizon for Farming.
In Ken Burns' film, survivors describe this deadly condition—caused by fine dust infiltrating homes and lungs—that killed many children during the storms.
What is Dust Pneumonia
The 3 classes that the 12 different soil textures are often divided into.
What is Coarse (Sands), Medium (Loams & Silts), and Fine (Clays)
In the carbon cycle, this process, driven by soil microbes, breaks down organic matter, releasing carbon dioxide back into the atmosphere.
What is Decomposition
What is CLORPT
(C) - Climate (LO) - Living organisms (R) - Relief (P) - Parent material (T) -
The 4 components of Soil
Mineral Matter, Organic Matter, Water, Air
This "father of soil conservation" is key to the New Deal's response, touring the Plains to advocate for better land practices.
Who is Hugh Bennett
The 4 ways to text for Soil Texture.
What are 1) Lab Analysis, 2) Feel Method, 3) Ribbon Test, 4) Soil Maps & Surveys
The 5 factors affecting Nutrient Cycles
What is the name of the soil property that measures the ability of soil to retain and exchange positively charged ions, such as calcium and potassium, influencing fertility?
What is Cation Exchange Capacity (CEC)