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  • 藤本 千恵, 浦出 俊和, 上甫木 昭春
    農林業問題研究
    2015年 51 巻 3 号 191-196
    発行日: 2015/12/25
    公開日: 2015/12/29
    ジャーナル フリー HTML
    The Kinoeki Project is a community activity in which small forest owners sell logging residues they have collected. This study clarifies the actual conditions and the problems of the Kinoeki Project, and considers the sustainability and significance of the project. According to our questionnaire survey, registered forest owners comprise approximately 10% or less of all forest owners in most of the study area. Of 18 organizations, six chose “administration without relying on subsidies” as a problem of the project. In all areas, the Kinoeki Project has a deficit balance, after deducting subsidies from income. This means that the project is financially unstable. According to our break-even analysis, it is necessary to sell collected logging residues as wood fuel at a high price in order to increase the number of collected logs and to reduce the purchase price.
  • *Hoshino Daisuke, Shamsuri Mohammad, Otani Tatsuya, Tani Naoki, Azizi Ripin, Abd Rahman Kassim
    日本森林学会大会発表データベース
    2015年 126 巻 T21-04
    発行日: 2015年
    公開日: 2015/07/23
    会議録・要旨集 フリー
    Shorea curtisii Dyer ex Brandis is called locally as “Meranti Seraya” and the timber is highly useful in the Peninsula Malaysia. In this report, we show survival and growth of S. curtisii trees planted in four different sized plots over 18 years. The survival proportion was rapidly decreased in the first 5 years and gradually decreased in the recent 13 years in all types of plots. Mean height was rapidly increased in the first 6 years and gradually increased in the recent 13 years. Mean diameter lineally increased through the observed term. From the analysis of all plots, the plot size gave positive effect to the survival proportion of S. curtisii planted. From the analysis to all planted trees, canopy opening gave the positive effect to height and diameter growth of planted trees. On the other hand, slope angle gave negative effect to them. Thus, the environmental factors produced serious effects to survival and growth of S. curtisii planted.
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