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Lecture Notes for HSC 156.00 - Environmental Health 21st Century,Meeting Global Challenge with Byrns at Illinois State (ILSTU)

Notes Information

Material Type:Outline 2
Professor:Byrns
Class:HSC 156.00 - Environmental Health 21st Century,Meeting Global Challenge
Subject:Health Sciences
University:Illinois State University
Term:Fall 2008
Keywords:
  • Groundwater Depletion
  • Xerophthalmia
  • Cross-Contamination
  • Cross Contamination
  • Common Cause
  • Food Infection
  • Contamination
  • Organophosphates
  • Salmonellosis
  • Salinization
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Sample Document Text

1.Be able to describe the things that make soil fertile- 1. A root environment with oxygen, proper PH, and low salt 2.Mineral nutrients: phosphate, potassium, and others 3. water holding capacity: low permeability is better. 2. Explain how soil texture affects water holding capacity- Salinization-too much salt in the soil (high evaporation, poor drainage/heavy irrigation); Waterlogging- excessive irrigation/poor drainage 3.The best type of soil for growing crops is a combination of what three things and what is the combination called? Silt, Sand, Clay = LOAM 4.What are the root causes of erosion and what are the immediate causes? Root – Over Cultivation, overgrazing, deforestation immediate causes- water and wind 5.How do you prevent erosion? croprotations, no-till or low-till agriculture, use organic fertilizer, terrace and contour planting (follows lay of land), wind breaks and strip cropping( grow trees around crop for wind protection) 6. What are salinization and water-logging? Salinization-too muc...

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