shelterwood

常见例句

• regenerated forest under shelterwood system
  伞伐作业更新林
• natural regeneration under shelterwood
  上方天然下种更新法
• For mature timber stands, the approaches of selection cutting, clear cutting and shelterwood cutting
  成熟的用材林应当根据不同情况,分别采取择伐、皆伐和渐伐方式
• shelterwood cutting
  渐伐
• irregular shelterwood system
  不规整渐伐
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