前言在立此题目时,首先是因为想到了奈良县川上村和歧阜县石原山林场的两个实例。它们与教科书上的、习惯上的或所谓随意选木的间伐部不相同,我认为是值得采纳的先例。所谓间伐木的选定,也不是单一的技术问题,其最基本的是在于怎样去搞林业,用什么方式经营森林,以及生产什么木材为目标的问题。必须以此为根据来选用森林的经营技术。 Foreword In establishing this subject, the first is due to the thought of Nara Prefecture Kawakami Village and Shifu Mountain Farm in Gifu two examples. They are not the same as textbooks, customary or so-called thinning departments, which I think are worthy of adoption. The so-called selection of thinning logs is not a single technical issue. The most basic issue is the question of how to engage in forestry, the ways in which forests should be managed, and what timber should be targeted. It must be based on the selection of forest management techniques.