Abstract

The features of the horizontal spatial pattern of multi-aged open forests of Gmelin larch (Larix gmelinii (Rupr.) Rupr.), forming the northern limit of tree vegetation in the forest-tundra ecotone in the Eastern part of the Taimyr Peninsula, are considered. It was found that all studied tree stands are characterized by a mosaic structure, in which areas occupied by woody vegetation alternate with open spaces, the area of which ranges from 37 to 50%. In all cases, the composition of the tree layer includes both single trees and their aggregations (biogroups), share of which varies from 17 to 32%. Pair aggregation of trees predominates in biogroups, amounting to 83%. The predominance of the random nature of the location of trees in the formation of the horizontal pattern has been shown, but the specific type of spatial distribution is also determined by the stage of ontogenesis in which the cenopopulation is located.

中文翻译：

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落叶松新种群中树木的水平格局（Rupr.）Rupr。位于泰米尔半岛森林苔原生态交错带

摘要

泰米尔半岛东部森林-苔原交错带乔木植被北界的格梅林落叶松( Larix gmelinii (Rupr.) Rupr.)多龄疏林水平空间格局特征经过考虑的。结果发现，所有研究的树群都具有马赛克结构的特征，其中木本植被占据的区域与开放空间交替，其面积范围为 37% 至 50%。在所有情况下，树层的组成都包括单棵树及其聚合体（生物群），其比例从 17% 到 32% 不等。生物群中树木对聚集占主导地位，占83%。树木位置的随机性在水平格局形成中的主导地位已经显现，但具体的空间分布类型还取决于新种群所处的个体发生阶段。