S&W Conservation

Soil is:

• steepness of slope, direction of slope, elevation

• granular material composed of finely divided rock and mineral particles. It is defined by size, being finer than gravel and coarser than silt.

• contains a fairly high proportion of clay particles

  with the remainder being sand and silt-sized

  particles.

• Self renewing compound of rock and mineral particles, organic material,living organisms, air, and moisture.

Plants are the real makers of soil. At the same time, chemical reactions are happening, and bacteria, fungi, worms, tunneling and burrowing insects, and other organisms are active.

• True

• False

Soil information on most of the nation’s counties can be

found on the Web site of the U.S. Department of

Agriculture’s Natural Resources Conservation Service

• True

• False

What are 3 conservation practices?

• Cover Crops

• Terracing

• Wetland

• Contour Planting

Whenever __________ moves across a bare or poorly covered soil surface, especially if the land is dry

and the soil contains mostly fine and loose particles is soil erosion by __________________________.

A watershed is...

• A shed full of water

• a natural body of water that flows south

• An area that drains to a specific region

• a building to store tools

What are 4 main water pollutants:

• Thermal

• Sewage

• Plant Nutrients

• Wood

• Infectious Agents

What are the main 3 Plant Nutrients are:

• nitrogen

• silt

• sand

• potassium

• phosphorus

What are the 3 types of erosion by water are:

• Sheet Erosion

• Cover Erosion

• Gully Erosion

• Rill Erosion

• Runoff Erosion

Biochemical Oxygen Demand is

• After a rain, you can see evidence of this in the small

  bits of soil that cling to the walls of buildings, the

  leaves of plants, and picket fences.

• We call the amount of oxygen required to decompose

  the organic matter present in water

• is happening wherever muddy water moves off bare

  ground without cutting channels in the soil.

• After rain has percolated through soil, a thin film of

  water that clings to soil particles and remains in tiny

  soil pores helps dissolve plant nutrients so

  that plants can use them.