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单词 shelterwood
释义

shelterwood

英汉-汉英词典
庇护木
词组 | 习惯用语
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  • Sherwood n. 舍伍德(姓氏,男子名)
  • sheltered adj. 受庇护的,受掩护的 (尤指为病弱者)提供食宿的,提供抚养方便的
  • Isherwood 伊舍伍德
  • shoulders n. 肩膀
shelterwood 庇护木

网络短语:
Shelterwood 亚马逊五星; 庇护木;
shelterwood method 伞伐法
shelterwood coppice 渐伐式矮林
shelterwood cutting 渐伐
shelterwood system 渐伐作业法;伞伐作业法
shelterwood felling 渐伐
shelterwood utilization 防护林材的利用
shelterwood strip method 带状伞伐法
group shelterwood system 群状伞伐作业
shelterwood compartment system 伞伐作业
英语百科

Shelterwood cutting

A shelterwood establishment cut, eastern white pine
Undesired balsam fir preventing desired white pine regeneration
A partial overstory removal cutting in eastern white pine. Compare the amount of light reaching the seedlings to that in the establishment cut.

Shelterwood cutting refers to a progression of forest cuttings leading to the establishment of a new generation of seedlings of a particular species or group of species without planting. This silvicultural system is normally implemented in forests that are considered mature, often after several thinnings. The desired species are usually long-lived and their seedlings would naturally tend to start under partial shade. The shelterwood system gives enough light for the desired species to establish without giving enough light for the weeds that are adapted to full sun. Once the desired species is established, subsequent cuttings give the new seedlings more light and the growing space is fully passed to the new generation.

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更新时间:2025/6/19 21:25:41