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为了研究水曲柳的萌芽更新特性 ,以便恢复和发展水曲柳资源 ,作者在长白山林区对水曲柳林进行了不同采伐季节、不同伐桩直径、不同伐桩高度、保留不同萌条数的试验 ,并调查了水曲柳自然定株的定株结果及定株时间 .结果表明 ,水曲柳萌生条只在采伐后的第一个生长季节内萌发 ,到第二个生长季节伐桩就失去了萌生能力 ;在非生长季节采伐而萌发的萌条其生长情况明显好于在生长季节内采伐而萌发的萌条 ;萌条数量随着伐桩直径的增大而增多 ,但萌条的平均高、茎生长量却不随伐桩直径的变化而变化 ;萌条数量与伐桩高度呈负相关关系 ;人工定株有利于水曲柳萌条的生长 ,以保留萌条 1～ 4株较好 ;水曲柳自然定株结果以 2～ 4株为主 .自然定株时间主要发生在萌条 3～ 10龄这个阶段
In order to study the germination and regeneration characteristics of Fraxinus mandshurica, in order to restore and develop the Fraxinus mandshurica resources, the authors conducted different harvesting season, different diameter of pile and different pile height, The results showed that the germination rate of Fraxinus mandshurica was only increased in the first growth season after harvesting and reached the second growth season It lost its ability to germinate. In the non-growing season, the growth of cutting and germinating sprouts was obviously better than that of cutting sprouts in the growing season. The number of sprouting sprouts increased with the diameter of cutting piles, But the stem growth did not change with the diameter of stumps. The number of stalks was negatively correlated with the height of stumps. Artificial stoving was beneficial to the growth of stamens in order to preserve 1 ~ 4 spores Better; the natural setting of Ash will result in 2 to 4 plants, the natural setting time mainly occurs in the stage of 3 to 10 years of sprout