Poudre River Riparian Forest Assessment

  • Client: City of Fort Collins Natural Areas Program, Larimer County, Colorado
  • Date: Apr 2009 to Jul 2009
  • Info: Blue Mountain was contracted by the City of Fort Collins Natural Areas Program to conduct a riparian forest inventory on approximately 15 miles of the Poudre River.

The goal of this study was to quantify the distribution, composition and abundance of tree species growing in the riparian corridor. Fixed-width, variable-length belt transects were used to assess basal area by species. Abundance was recorded for desirable species such as narrowleaf and plains cottonwood and mulberry along with the abundance of undesirable species such as crack willow, Russian olive, tamarisk, Siberian elm and others. Regeneration less than 1” diameter at breast height was evaluated and used in conjunction with diameter distribution data to determine trends in regeneration.