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    Southern Cross University
    European Forest Institute Mediterranean Office (EFIMED)

    Assessing the sustainability of timber harvests from natural forests: Limitations of indices based on successive harvests

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    The concepts of sustainable original harvest (SOH) and sustainable disturbance harvest (SDH), and simple indices such as the ratio of successive harvests do not provide a reliable indication of the sustainability of a harvest. Some limitations of these concepts are illustrated in the context of selection harvesting of timber from natural forests. Four models are used to demonstrate that maintaining an SOH or SDH indicates little about the long-term sustainability of a timber harvest. The concepts may offer greater utility in evenaged systems harvested by clear-felling, but still suffer the limitation that many factors may mask any change in site productivity. Any measure of sustainability should include an appraisal of the condition and vitality of the residual resource. Simple indices based on successive harvests do not consider the residual stand, and can be misleading.

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    Description

    Title : Assessing the sustainability of timber harvests from natural forests: Limitations of indices based on successive harvests
    Author(s) : J K Vanclay
    Abstract : The concepts of sustainable original harvest (SOH) and sustainable disturbance harvest (SDH), and simple indices such as the ratio of successive harvests do not provide a reliable indication of the sustainability of a harvest. Some limitations of these concepts are illustrated in the context of selection harvesting of timber from natural forests. Four models are used to demonstrate that maintaining an SOH or SDH indicates little about the long-term sustainability of a timber harvest. The concepts may offer greater utility in evenaged systems harvested by clear-felling, but still suffer the limitation that many factors may mask any change in site productivity. Any measure of sustainability should include an appraisal of the condition and vitality of the residual resource. Simple indices based on successive harvests do not consider the residual stand, and can be misleading.
    Keywords : sustainable original harvest, sustainability index, sustainable forestry, timber harvesting, methodological problem, successive harvest, sustainable disturbance harvest

    Subject : unspecified
    Area : Other
    Language : English
    Year : 1996

    Affiliations Southern Cross University
    Journal : Journal of Sustainable Forestry
    Volume : 3
    Issue : 4
    Pages : 47-58
    Url : http://www.scopus.com/inward/record.url?eid=2-s2.0-0030431786&partnerID=40&md5=6d9b62b0f6c3434ceeb7a323cde3ff53

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    Jerome's Peer Evaluation activity

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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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