12736 – Plant Materials for Crater Lake National Park Revegetation Project

Investigator’s Annual Reports (IAR’s) for Crater Lake National Park

Plant Materials for Crater Lake National Park Revegetation Project


Report Number: 12736

Permit Number: CRLA1993AHDR

Date Received: Jan 01, 1998

Reporting Year: 1993

Principal Investigator: Dale Darris, U.S. Soil Conservation Service, Plant Materials Center, Corvallis, OR

Additional investigator(s): Mrs Joan Trindle, Mrs Theresa Flessner

Park-assigned Study Id. #: CRLA1993AHDR

Permit Expiration Date: Jan 01, 1998

Permit Start Date: Jan 01, 1998

Study Starting Date: Jan 01, 1991

Study Ending Date: Jan 01, 1995

Study Status: Completed

Activity Type: Other

Subject/Discipline: Restoration – Natural

Objectives: To collect, evaluate, and increase new plant materials for the Rim Village revegetation project.

Findings and Status: Results of test plots: Soil treatment and species interacted to affect stand establishment in plots in 1992. Incorporation of peat moss and slow-release fertilizer promoted emergence/establishment, and flowering of certain grass species and emergence/establishmnet of broadleaf lupine. Lupine emergence appeared to be hindered by addition of erosion-control netting. Application of the netting did not promote stand establishment; however, netting may be important for successful establishment of plant cover in years with below normal precipitation or on slopes.

For this study, were one or more specimens collected and removed from the park but not destroyed during analyses? No

Funding provided this reporting year by NPS: 44900

Funding provided this reporting year by other sources: 5000

Full name of college or university: n/a

Annual funding provided by NPS to university or college this reporting year: 0


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