Regulations for Conservation Forest Managements Article 9
Selection cutting of national protection forest shall be operated in accordance with the national forest management plan. The total area for selection cutting each year shall not exceed the quotient of the total operable standing timber area of the protection forest concerned divided by the applicable cutting cycle. The total selection cutting volume shall not exceed the product of the total volume of the that selection cutting area multiplied by the applicable selection cutting percent which shall not be larger than one third.The total area for clear cutting each year of a public or private protection forest or a national protection forest operated by lease shall not exceed the quotient the total operable standing timber area of the protection forest concerned divided by the applicable cutting age. The total clear cutting area shall not exceed one third of the total cutting area. Where selection cutting is adopted instead, the provision of the preceding paragraph shall govern mutatis mutandis.No selection cutting may be repeated in the selection cutting area provided in the first paragraph except where at least one cutting cycle has lapsed.
中文原文 保安林經營準則第9條
國有保安林之擇伐作業依國有林事業區經營計畫辦理。
一年內得擇伐區域之面積，以該保安林可作業立木地面積除以迴歸期之商數為限；其擇伐材積，為該擇伐區域之林木總材積乘以擇伐度之積數，擇伐度最高不得大於三分之一。
公有保安林、私有保安林及國有經政府放租營造之保安林一年內之皆伐面積，以該保安林可作業立木地面積除以伐期齡之商數為限。
其皆伐面積並不得超過採伐區域面積之三分之一。
其以擇伐方式者，準用前項之規定。
第一項已實施擇伐作業之擇伐區域，非經一迴歸期後，不得重新擇伐。
一年內得擇伐區域之面積，以該保安林可作業立木地面積除以迴歸期之商數為限；其擇伐材積，為該擇伐區域之林木總材積乘以擇伐度之積數，擇伐度最高不得大於三分之一。
公有保安林、私有保安林及國有經政府放租營造之保安林一年內之皆伐面積，以該保安林可作業立木地面積除以伐期齡之商數為限。
其皆伐面積並不得超過採伐區域面積之三分之一。
其以擇伐方式者，準用前項之規定。
第一項已實施擇伐作業之擇伐區域，非經一迴歸期後，不得重新擇伐。