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    block this user Jerome K Vanclay Trusted member

    Professor

    Southern Cross University
    European Forest Institute Mediterranean Office (EFIMED)

    Modelling changes in the merchantability of individual trees in tropical rainforest

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    The deterioration of merchantable trees over time is often assumed to be negligible in growth models and yield calculations. Although the annual probability of becoming unmerchantable is small, the cumulative probability over a cutting cycle is significant, and should be included in yield studies. Logistic regression analyses of permanent sample plot data revealed that changing merchantability can be modelled using species, stand basal area, tree size and time since last logging. The equation developed for the rainforests of north Queensland indicates that up to 10% of trees may become unmerchantable during a 40yr cutting cycle. -Author

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    Description

    Title : Modelling changes in the merchantability of individual trees in tropical rainforest
    Author(s) : J K Vanclay
    Abstract : The deterioration of merchantable trees over time is often assumed to be negligible in growth models and yield calculations. Although the annual probability of becoming unmerchantable is small, the cumulative probability over a cutting cycle is significant, and should be included in yield studies. Logistic regression analyses of permanent sample plot data revealed that changing merchantability can be modelled using species, stand basal area, tree size and time since last logging. The equation developed for the rainforests of north Queensland indicates that up to 10% of trees may become unmerchantable during a 40yr cutting cycle. -Author
    Keywords : regression analysis, resources exploitation, simulation model, statistical analysis, tree quality, tropical area, Australia, Queensland, forest resources, merchantability, rainforest

    Subject : unspecified
    Area : Other
    Language : English
    Year : 1991

    Affiliations Southern Cross University
    Journal : Commonwealth Forestry Review
    Volume : 70
    Issue : 3
    Pages : 105-111
    Url : http://www.scopus.com/inward/record.url?eid=2-s2.0-0026282181&partnerID=40&md5=0f60f0ca65f0ab4763165ff0b095e26c

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    Jerome's Peer Evaluation activity

    Trusted by 1
    Downloads 407
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    • Habiba Hassan Wassef, Senior professional, Independent international expert, United Nations, WHO, National Coordinator for the 7th European Framework Research Programme, National Research Center in Cairo, Egypt.
    • Thuy Nguyen, Student, Ph.D. Level, Silviculture Research Institute, Ha Noi, Vietnam, The University of Melbourne.
    • Guillaume Dupuy d'Angeac, Publisher, Collective Developments, HEC Alumni, Peerevaluation.
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