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    Author(s): J. A. Larsen
    Date: 1940
    Source: Ecological Monographs. 10(1): 1-54.
    Publication Series: Scientific Journal (JRNL)
    Station: Rocky Mountain Research Station
    PDF: View PDF  (4.85 MB)


    The object of the study was to analyze and evaluate the environmental factors which govern the progressional stages of the secondary forest succession in northern Idaho. \When this study began much uncertainty existed regarding the distribution of trees and forest types in relation to temperature, precipitation, and evaporation and regarding their soil moisture and nutrient requirements in this region. Little was definitely known of the conditions which favored good growth and form of trees, or what gave rise to pure as distinguished from mixed stands. Furthermore, more exact and dependable information was urgently needed in connection with timber sale operations, reforestation practice, and utilization, and forest management generally.

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    Larsen, J. A. 1940. Site factor variations and responses in temporary forest types in northern Idaho. Ecological Monographs. 10(1): 1-54.


    forest types, environmental factors, forest succession, management

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