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- Halpern, Charles B.; Spies, Thomas A.
- Ecological applications 1995 v.5 no.4 pp. 913-934
- Pseudotsuga; burning; canopy; chronosequences; clearcutting; ecosystems; extinction; forest management; forest stands; forests; issues and policy; logging; plantation forestry; resource management; slash; spatial variation; species diversity; tropics; understory; Oregon; Washington (state)
- ... With the exception of the tropics, nowhere has the relationship between resource management and conservation of biological diversity been more controversial than in the Pacific Northwest region of the United States. Widespread loss and fragmentation of old—growth ecosystems have stimulated critical review and revision of existing forest management policies. However, studies of the consequences of ...
- Acevedo, M. F.; Urban, D. L.; Ablan, M.
- Ecological applications 1995 v.5 no.4 pp. 1040-1055
- forests; landscapes; models; Oregon
- ... We describe and apply a correspondence between two major modeling approaches to forest dynamics: transition markovian models and gap models or JABOWA‐FORET type simulators. A transition model can be derived from a gap model by defining states on the basis of species, functional roles, vertical structure, or other convenient cover types. A gap‐size plot can be assigned to one state according to dom ...