Geography 101 The Physical Environment
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Unit 3
Objectives and Exam Study Guide

Once again this exam is somewhat comprehensive in form. The reason is that the geography of plants and animals depends on the distribution of climates. Likewise, the distribution of soils depends on the geography of plants and animals and climate. When studying you should be making these kinds of connections. Questions from any assigned videos viewed during this unit are included on the exam.

Study tips:

  • Check out the Unit 3 links on the Study Aids page
  • Review the "Can you ...?" questions at the end of each lecture outline after I finish a lecture.
  • Use the review questions and chapter quizzes in the web text to assess your learning
  • Create flash cards of important terms and concepts.  Check out the flash card maker for a cheap and easy way of creating them.
  • Review the lab answer keys as soon as soon as you complete a lab.
  • Some find my "Biome Information Matrix" helpful in organizing the material. I've filled out a few of the cells to illustrate the kind of information you want to include.
  • There are several questions related to the locations of soil orders and biomes.  See the North America Climate/Soils map .
  • Check out the Geography 101 blog for entries related to the topics covered in Unit 3.

For the conceptual portion (textbook reading):

Hydrosphere

  • Describe the controls over transpiration.
  • Compare and contrast the zones of water beneath the surface.
  • Describe the components of the hydrologic cycle.
  • Types of water help in the soil (hygroscopic, capillary, etc)
  • Evaluate a soil water budget table.

Biogeography

  • Identify the location of the various vegetation formation (for example, steppes, deserts, tundra, forests, etc.) on a map of North America
  • Describe the climate and soils associated with the various vegetation formations.
  • Explain the components of a water budget (surplus, deficit, utilization, etc.)
  • Plant adaptations to environmental conditions

Soils

  • Identify the location of the various soil orders on a map of North America.
  • Know the various soil forming factors and their affect on soil properties.
  • Describe the process of soil horizon formation (additions, removals, etc.)
  • Describe the characteristics (physical properties, geographic distribution, associated vegetation, etc.) of the soil orders.
  • Use the soil texture triangle to determine soil texture class.
  • Describe the relationship between soil texture and soil permeability, soil infiltration, field capacity, wilting point, available water.

For the lab portion you should be able to:

  • Know approximate locations of the major soil orders in North America and their characteristics. See the map Vegetation/Soils Map and the map that you drew for the online lab "Spatial Pattern of Soil Characteristics" for locations.
  • Know how to fill out a water budget table. (See the video help if needed.)

    Also:

    • Know how to interpret flood intensity and duration based on surplus.
    • When irrigation is needed.
    • If a climate is a wet or dry climate.

  • Know the general relationship between climate, NPP, and decomposition.
  • There will be questions from any videos viewed during this unit.

 

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