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在溪旁-落叶松林型1937年的新皆伐迹地上,设置了2块皆伐固定样地;在杜香-落叶松林和杜鹃-落叶松林型1987年的新渐伐(二次渐伐)迹地上,设置了2块渐伐固定样地,以观察其伐后的天然更新动态.1990年5月22日复查结果,所有固定样地内均未发现更新的幼苗、幼树.
Two clear-cut clear-cut plots were planted in the Brook-Larix forest at the new clear cut of 1937. In 1987, the new deforestation (secondary tapering) of the Fraxinus mandshurica-Larch forest and the rhododendron-larch forest- In order to observe the natural renewal of post-cutting, two plots were set on the trail, and on May 22, 1990, no new seedlings or saplings were found in all the fixed plots.