Rim Drive Rehabilitation Revegetation Project 2020 Annual Report
Wyler CS, Heisler S, Hooke J. 2021. Rim Drive Rehabilitation Revegetation Project 2020 Annual Report. National Park Service. Crater Lake National Park
Crater Lake National Park’s Rim Drive Rehabilitation Revegetation project aims to mitigate impacts to the rim environment from the Federal Highway Administration-sponsored Rim Drive Rehabilitation project. This major construction project is correcting many deficiencies present along the Park’s historic Rim Drive and has been split into “Phases” encompassing iterative work progression. Phase I of this project has been completed and revegetation work for Phase II commenced in the 2020 season. Through developing revegetation prescriptions, surveying for and controlling invasive plant species, salvaging and reestablishing rare plant populations disturbed by the construction project, and restoring disturbed areas using site-specific native plants and seed it is hoped that long-term impacts from this construction project to the Park’s natural resources will be minimized. During the 2020 field season, 42,156 invasive plants were removed from the project area. Revegetation prescriptions were completed for 21 newly identified restoration sites for Phase II. Plant materials were collected from five distinct seed zones representing the floral diversity of the Phase II project area. Forty-three seed accessions were provided to the USFS Dorena Genetic Resource Center for cleaning. Documentation was refined for each disturbed site to inform future restoration efforts and assess revegetation efficacy. In 2020, Crater Lake National Park staff outplanted 1,633 native plants and dispersed 5,463 grams of native seed throughout areas disturbed by Phase I of the project.
- Type
- Unpublished Report
- Authors
- Wyler, Carolyn; Heisler, Scott; Hooke, Jen
- Date of Issue
- 2021-04
- Publisher
- National Park Service
- Units
- CRLA
- Keywords
- disturbance, native plant communities, outplanting, restoration, revegetation, road construction, seed collection, site preparation, Vegetation
- Subjects
- Ecological Framework: Biological Integrity | Focal Species or Communities | Vegetation Complex , Ecological Framework: Human Use | Point-Source Human Effects | Point-Source Human Effects