Natural Resources

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Across
  1. 5. the change in elevation for a given horizontal distance of the earth's surface often expressed as a percentage
  2. 6. a document classifying all the soils in a given geographic area, for the act of examining the soils to prepare such a document
  3. 11. those materials underlying the soil from which the soil is formed
  4. 13. soil deposited by moving water
  5. 14. with regard to soil, texture refers to the relative percentage of sand, silt, and clay particles
  6. 16. a system to describe the characteristics of a given soil in terms of its derivation and physical makeup
  7. 17. windblown soil deposits
  8. 18. the process of breaking down rocks and mineral through the actions of weather, ice, roots, and grinding.
  9. 19. a document prepared as a result of the scientific examination and classification of a land area, used by farmers, planners, and soil conservationists to develop land-use plans
Down
  1. 1. layers in a mature soil
  2. 2. the probability that a flood of a given degree of severity will occur in a known period of time
  3. 3. description of the ability of a land parcel to produce crops, given the danger of erosion and other limiting factors
  4. 4. black or brown substance, typically at the soil surface, resulting form the decay of plant and animal matter
  5. 7. dead plant and animal material in various stages of decay
  6. 8. as used in this text, a marine deposit is a layer of parent material deposited over time at the floor of an ocean or sea, and that forms the basis for the subsequent development of a soil
  7. 9. as used in this text, partially decomposed organic matter that still retains recognizable characteristics of the plant or animal form which it came
  8. 10. the depth to which topsoil extends in the soil surface.
  9. 12. ability of soil to allow water to move through and out of the soil stucture. Soil drainage is closely related to the amount and size of spaces between soil particles as well as to the absence or presence of impermeable layers under the soil surface.
  10. 15. the process of the wearing away or removal of the surface layer of anything. Especially in natural resources management, erosion refers to the loss of surface soil to water and wind.
  11. 16. the layer of natural materials on the earth's surface, containing both organic and inorganic materials, that is capable of supporting plant life.