Soil Conservation

Question 1

the process when soil particles are detached from their original location, transported and deposited in a different location

Answer 1

Soil Erosion

Question 2

Wearing away of the land surface primarily as a result of human activities or in some cases animal activities, much faster rate than geological erosion. Plowing, cutting, grazing, construction.

Answer 2

Accelerated erosion

Question 3

Key drivers of erosion

Answer 3

Wind and water, topography

Question 4

Response to Dust Bowl, planted trees to shelter wind. Windbreaks. One to five rows of trees planted on the western margin of a farm in a north-south line.

Answer 4

Shelterbelt Program 1935

Question 5

Erosion control practices

Answer 5

Contour farming
Strip Cropping
Terracing
Gully Reclamation
Conservation Tillage

Question 6

The mending of a gully by either physical methods (damns, boulders, cement) or vegetational means (shrubs)

Answer 6

Gully reclamation

Question 7

Amount of topsoil losses during the year that is tolerable to the USDA, Average 4.7 tons per acre.

Answer 7

Tolerance Value

Question 8

Factors that affect soil erosion

Answer 8

Rainfall
Runoff
Water Soluble Aggregates

Question 9

plowing, seeding, cultivating and harvesting at right angles to the direction of the slope rather than up and down

Answer 9

Contour Farming

Question 10

Growing crops that require different types of tillage such as row crop and cover crop, alternating strips

Answer 10

Strip Cropping

Question 11

Steep slopes are converted into a series of broad based steps, runoff is retarded, soil erosion is arrested.

Answer 11

Terracing

Question 12

the practice of restricting plowing of the soil to reduce the erosion and leave enough of the previous crop residues so at least 30% of the soil surface is covered when the next crop is planted.

Answer 12

Conservation Tillage