Rim Drive Rehabilitation Revegetation Project 2018 Annual Report
Wyler CS, Chizinski T, Heisler S, Hooke J, Frederic M, Scott K. 2019. Rim Drive Rehabilitation Revegetation Project 2018 Annual Report. National Park Service
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. Through 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 2018 field season, over 14,888 invasive plants were removed from the project area. For the sixth year in a row, plant materials were collected from five distinct seed zones representing the floral diversity of the project area. Forty-seven seed accessions were provided to the Corvallis Plant Materials Center by Park staff for propagation of plants for revegetation and creation of customized seed mixes for each restoration site. Site documentation was refined for each disturbed site to inform future restoration efforts and monitor revegetation status of the project. In 2018, CRLA staff planted 1,653 native plants, 63 salvaged rare plants, and dispersed 4,910.5 grams of native seed throughout disturbed areas along East Rim Drive. On West Rim Drive, 3,307 native plants were outplanted in disturbed areas along with approximately 12 salvaged rare plants; and 22,142.5 grams of native seed were broadcast in disturbed areas along the road corridor. Scheduled road construction work was not completed until the end of this season, leaving some restoration work to be accomplished during the 2019 field season.
- Type
- Unpublished Report
- Authors
- Wyler, Carolyn; Chizinski, Tara; Heisler, Scott; Hooke, Jen; Frederic, Melody; Scott, Kaylin
- Date of Issue
- 2019-02
- 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