埃塞俄比亚蓝桉薪材人工林的产量模型

T. Pukkala, V. Pohjonen
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引用次数: 14

摘要

基于53棵桉树和105个样地的分析,建立了单树和林分水平上的体积和生物量模型。将可能的生长地点分为四类。在苗木林中,I级立地对应的产量为44 m3 ha−1年−1,在乔木林中对应的产量为46 m3 ha−1年−1。IV级立地在苗木林分中对应的产量为9 m3 ha−1年−1,在乔木林分中对应的产量为13 m3 ha−1年−1。幼苗林龄在18 ~ 19年达到最大值,灌木林林龄在14年达到最大值。
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Yield models for Eucalyptus globulus fuelwood plantations in Ethiopia

Based on 53 tree analyses and 105 sample plots of Eucalyptus globulus, models for volume and biomass at single tree and stand levels were developed. The possible growing sites were divided into four site classes. In seedling stands, the site class I corresponds to yield class 44 m3 ha−1 year−1, in coppice stands to yield class 46 m3 ha−1 year−1. The site class IV corresponds in seedling stand to yield class 9 m3 ha−1 year−1, in coppice stands to yield class 13 m3 ha−1 year−1. The maximum mean annual increment was reached in seedling stands at the age of 18–19 years, in coppice stands at the age of 14 years.

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