NAPRA Scenarios for the South Central Michigan
(Study area - Clinton county)


  Clinton county is located in the South Central Michigan.  Capac loam and Marlette loam are predominent soils in Clinton county.  In terms of the county soil survey, Capac and Marlette soils account for approximately 40% of total acreage in the county. The Capac series are nearly level to gently sloping, and somewhat poorly drained soil. The Marlette soils are gently sloping to steep, well drained and moderately drained.

  Annual precipitation in the county is about 30 inches of which approximately 60% is received during the growing season (May - October). Corn, soybeans and wheat are the most important field crops in the county. Other crops include oats, dry beans, barley and hey.

  A variety of pesticides including herbicides and insecticides are used in croplands.  Among them are Atrizine, Metolachlor and Metribuzin.
    
 
  Pesticide losses from agricultural lands are affected by climate, soils, and tillage. Annual concentration and annual four-day maximum concentration of pesticide are used to assess the long- and short-term risk to water quality. Pesticide losses in runoff and percolation are used to assess the risk to surface and groundwater quality. The environmental risk of pesticide is also associated with pesticide properties such as toxicity and persistence. Select from the following to see a variety of scenarios: 
 

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Vulnerability index of soils for pesticide loss

 

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