Dynamics and pattern of a managed coniferous forest landscape in Oregon.

T.A. Spies; W.J. Ripple; G.A. Bradshaw

Treesearch

Dynamics and pattern of a managed coniferous forest landscape in Oregon.

Informally Refereed

Authors:

T.A. Spies, W.J. Ripple, G.A. Bradshaw

Year:

1994

Type:

Scientific Journal

Station:

Pacific Northwest Research Station

Source:

Ecological Applications. 4(3): 555-568

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Abstract

We examined the process of fragmentation in a managed forest landscape by comparing rates and patterns of disturbance (primarily clear-cutting) and regrowth between 1972 and 1988 using Landsat imagery. A 2589-km2 managed forest landscape in western Oregon was classified into two forest types, closed-canopy conifer forest (CF) (typically, > 60% conifer cover) and other forest and nonforest types (OT) (typically, < 40 yr old or deciduous forest). the percentage of cf declined from 71 to 58% between 1972 and 1988. declines were greatest on private land, least in wilderness, and intermediate in public nonwilderness. high elevations (>914 m) maintained a greater percentage of CF than lower elevations (

Keywords

clear-cutting, disturbance, edge habitat, forest management, habitat fragmentation, heterogeneity, interior habitat, landscape pattern, patchiness, remote sensing

Citation

Spies, T.A.; Ripple, W.J.; Bradshaw, G.A. 1994. Dynamics and pattern of a managed coniferous forest landscape in Oregon. Ecological Applications. 4(3): 555-568