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Photorealistic image of a dense pine forest with some tree trunks marked with blue or red paint bands.

Photorealistic image of a dense pine forest with some tree trunks marked with blue or red paint bands.
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目标树选择与标记 数量：每公顷150-200株。 标准： 树种：优势树种马尾松。 生长势：树干通直、圆满，树冠饱满、匀称。 健康度：无病虫害、无机械损伤。 位置：尽可能分布均匀，作为未来林分的骨架。 操作：用蓝色油漆或标牌对目标树进行醒目标记，全程保留。 干扰树（采伐木）选择与标记 对象：所有严重影响目标树生长的林木。 上层干扰树：直接遮挡目标树树冠上方光照的霸王木、竞争木。 侧方干扰树：从侧方挤压目标树生长空间，其树冠与目标树冠重叠度高的林木。 劣质木：干形弯曲、多头、病虫害严重的马尾松。 非目标树种：原则上保留以促进混交，但若其严重压迫目标树，则可酌情伐除。 操作：用红色油漆在树干基部醒目位置标记采伐木，并确定倒向。 间伐强度控制 强度标准：采用中度间伐，采伐强度按蓄积量计为16%-24%（对应实施方案中的L2-L3强度）。 控制方法： 1. 先根据目标树和干扰树的确定，初步估算采伐量。 2. 若估算值超出范围，需重新审视干扰树的选择，优先保证目标树生长空间，适当保留部分低度干扰木。 3. 最终确保每公顷采伐株数约为250-350株。 See more

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