Soil Health and Erosion

Learn more about how the District plans to address this resource concern in
the Long-Range Business Plan for 2011-2015 (pdf file).

Healthy soil gives us clean air and water, bountiful crops and forests, productive pastures, diverse wildlife, and beautiful landscapes.

Healthy soil is able to:

  • sustain plant and animal productivity and diversity,
  • maintain and enhance water and air quality, and
  • support human health and the surrounding environment.

Enhancing organic matter, preventing erosion, and avoiding soil compaction are three key components to maintaining healthy soil.

What does healthy soil look like?

Start by using the Willamette Valley Soil Quality Card to assess your soil quality. Check out the Guide for more details about each soil quality indicator.

Get information about your soils using the Web Soil Survey.

Nutrient Management

  • Soil testing instructions
    Take a soil sample to determine what your soil needs to produce a successful crop.
  • Labs in Oregon
    After you take a soil sample, send it to a lab in Oregon to get it analyzed for nutrients. Call the lab first for information on pricing and mailing procedures.
  • Soil Interpretation Guide
    OSU Extension’s Soil Interpretation Guide will help decipher your soil test results.

OSU Extension has produced Fertilizer Guides for many different crops. Visit OSU Extension’s Small Farms website for more information.

Adding organic matter improves soil structure, enhances water and nutrient holding capacity, protects soil from erosion and compaction, and supports a healthy community of organisms.

Ways to increase organic matter:

  • Rotate your crops
  • Use reduced tillage

Soil Erosion

Soil erosion impacts the water we drink, the food we eat, and the recreation we seek. Erosion occurs throughout the Tualatin River Watershed, eventually carrying sediment, bacteria, chemicals, and nutrients to waterways we all enjoy.

Soil compaction

Soil compaction makes it difficult for water and nutrients to move throughout the soil. Causes may include farm equipment and livestock. Avoiding compaction:

  • Avoid driving over soil when wet
  • Try confining equipment or livestock traffic areas to the same area on the farm


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