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Stillaguamish Big Tree Habitat Assessments

Sword fern and wood sorrel

Polystichum munitum (sword fern) and Oxalis oregona (wood sorrel).

Native Plant Steward Project Teams

North Fork Team: Kristina Kramer, Marlene Eiseman, Caitlin McLellan
South Fork Team: Susan Peterson, Rob Blomquist, Kay Crabtree

Snohomish County's Surface Water Management Division has received two grants from Washington Department of Ecology to restore the streamside corridor of the North and South forks of the Stillaguamish River. This basically means replanting the area with native vegetation - mainly conifers.

The past land practices have dramatically altered the river's edge, and even though there is little active use, the streamside corridor remains degraded. It is now dominated by red alder, big leaf maple, black cottonwood, and blackberry. Few native evergreens are present.

The major goal is to reestablish a conifer-dominated river corridor, which will then provide about 85 percent canopy coverage. Working with willing landowners, the County conducted preliminary site assessments to determine the locations where restoration can best succeed. Then they established up to 25 plots for WNPS Native Plant Stewards to assess.

Project Goals

  • Train stewards in proper assessment and monitoring protocols
  • Complete six assessments in 0.1-acre permanent plots established by the County
  • Record existing tree density and condition, as well as abundance of invasive species
  • Document slope, aspect and soil conditions.
  • Provide data sheets for tree density, canopy cover and standing snag condition to County 
  • Provide County an analysis and summary report of assessment results, rationale and recommendation

Accomplishments

  • 12 plots visited and assessments completed
  • North Fork data compiled and report given to County




Updated: March 5, 2015
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