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STAND VISUALIZATION SYSTEM IMAGES

Integrated Resource Management, Consulting Foresters and Restoration Ecologists
Integrated Resource Management has developed the following computer visualization images showing various stages of oak habitats and succession and silvcultural prescriptions. All of the images are copyright© protected and are not available for use without written permission by IRM.

Oak Ecology

    Oak Savanna
    A savanna is any area where scattered trees and/or shrubs and other large persistent plants occur over a continuous and permanent ground layer visually dominated by herbs, usually graminoids. Eiten (1986).
    Oak woodlands
    Oak woodlands have an open to partially closed canopy where shrubs, forbs and other non-graminoid plants may dominate or co-dominate with the graminoids. 25-80% tree cover.

Successional Patterns of Oak Habitats

IRM created the following images to illustrate the conversion of an oak savanna to a Douglas-fir forest, without the presence of fire (disturbance).

Oak Savanna with grass understory

Invasion of dense oaks around savanna trees

Understory initiation of Douglas-fir

Initial overtopping by Douglas-fir

Overtopping by Douglas-fir

Succession to Douglas-fir, mortality of oaks

Douglas-fir forest

Planning and Management IRM created the following SVS images to illustrate silvicultural prescriptions and treatment options for landowners to "open up" their oak stands and improve the health of individual oak savanna trees or oak woodlands.


Gap cut around remnant savanna oak in mixed oak-conifer woodland. This is a 3-aged stand.


Gap cut around oak remnant and remove fir. Note: some fir trees retained for western gray squirrels.

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