Forest activity classification system of small watershed area using GIS (I): classification system in case of sub-compartment.
Forest activity classification system of small watershed area using GIS (I): classification system in case of sub-compartment.
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基于GIS的小流域森林活动分类系统（一）：分区情况下的分类系统。
DOI：
10.20659/jfp.1.1_7
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
Ryo Benitani
中科院分区：
文献类型：
--
作者：
N. Abe;H. Kamioka;Ryo Benitani
研究了一个以小班为单位的森林活动评价和分类系统。森林功能的研究主要基于地形因子。通过对适宜采伐林分与不适宜采伐林分的区分，根据地形、立地等级、林分蓄积量等因素，采用评分法进行评价。通过聚类分析，将其分为木材生产功能、水土流失防护功能和流域保护功能3类。另一方面，对于森林的公共卫生和休闲功能，设定了人们可以将水用于休闲用途的条件。结果，森林的各种功能分为4类，增加了森林的公共卫生和娱乐功能。为了确定每个小班属于哪种功能，通过使用决策树方法，开发了一个系统，以最大限度地利用地理信息系统的功能，他们的分类。由于国家林业局柴田地区办事处采用了该方法，（对其管辖范围内的森林）证实，可以迅速对每个小班的森林功能进行评价。
A system to evaluate and classify the forest's activity by each sub-compartment was studied. The forest's function was investigated mainly based on tepographical factors. By distinguishing the stands suitable and unsuitable fer cutting , based on topography, site class, stand volume and so forth, they could be evaluated by a score evaluation method. As a consequence of doing a cluster analysis of the scores, it was decided that they should be apprepriately divided into 3 types such as a timber procluction function, on the erosion protection function and a watershed protection function. On the other hand, as for the forest function for public health and recreation, a condition was set that people could use the water for recreational use. As a result, the various functions of the forest were divided into 4 types by adding a forest function for public health and recreation. In order to determine which function each sub-compartment belongs to, a system to classify them through the use of a decision tree method, was developed by making the best of use the GIS function. As a consequence of its adoption by the Shibata District Office of the National Forestry Bureau, (to the forests within its jurisdiction) it was confirrned that an evaluation of the forest's functions by each sub-compartment could be rapidly clas$ified.