Soil Study Guide Flashcards
What does limestone do?
It adds calcium, makes soil less acidic
What time of the drought part did the dust bowl happen?
1930 - 1940
According to Darwin, what is one of the most fascinating creatures in the soil?
Earthworms
How long was the dust bowl?
About 30 years
What is strip cropping?
planting different crops in alternating rows
What do plants need to survive in soil?
Fungi
Plants & worms use each other to survive
True
There is a lot of stored carbon in soil.
True
What nutrients does soil need to be healthy?
Potassium, Nitrogen, Phosphorus
Does rotational grazing cycle live stock around pasture to allow cover crops to not replenish?
No
what are the different logging methods?
Clear-Cutting, Selective Cutting, Not Sustainable, Sustainable
How long does it take to build 1/2 of a cm of soil?
About 100 years
What three nutrients are required for good soil?
Potassium, Nitrogen, Phosphorus
in the UK how much of the topsoil has been removed ?
11%
Where did the dust bowl happen?
South West USA
Forest Management provides
Food & Shelter
What was the problem with the soil in “The Garden Problem”
It lacked some types organic matter
What is erosion?
When forces such as wind, water, and ice move particles of rock & soil
Roots absorb water and hold soil together.
true
