Search Constraints

Start Over
Filtering by: Subject Steppe restoration -- Oregon -- Crook County Remove constraint Subject: Steppe restoration -- Oregon -- Crook County

Search Results

  • Spatial and age class analysis of managed western juniper (Juniperus occidentalis) woodlands in central Oregon

    Creator:
    Zophy, Kelley T.
    Abstract:
    Juniper is a native species to Oregon and confers ecological benefits to wildlife when it is at savannah and transitional densities. Its range and extent have fluctuated with climatic change, but the current range expansion is unprecedented in its extent. The range expansion has been associated with the degradation of...
    Resource Type:
    Masters Thesis
    Full Text:
    landscape (chapter 3). 1.4 Study location The study location is located in Crook County, Oregon

  • Yield responses of invasive grasses to carbon doses

    Creator:
    Brunson, Jessi L.
    Abstract:
    The sagebrush steppe ecosystem of the northern Great Basin is severely degraded and continues to decline due in large part to the invasive, non-native annual grasses Bromus tectorum L. (cheatgrass) and Taeniatherum caput-medusae (L.) Nevski (medusahead). Restoration of invasive-dominated areas is difficult, but can be enhanced by adding a carbon...
    Resource Type:
    Masters Thesis
    Full Text:
    : David A. Pyke Patricia S. Muir The sagebrush steppe ecosystem of the northern Great Basin is