火灾后在岩石植物上形成的森林植物群落结构特征

A. V. Gryazkin, O. Gavrilova, Tong Cheng, E. I. Semenova
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引用次数: 0

摘要

已经确定,根据成林物种和生长条件的不同,烧毁地区森林生态系统的恢复延长了很长一段时间。森林火灾后形成成熟森林植物群落的一个特征是有机质的延迟积累。这也与森林所有组成部分的发展滞后有关。在这些条件下,火灾发生15年后,在被烧毁的松林遗址上形成了以松树和桦树为主的幼树。杨树、云杉和灰桤木的林下以单个个体为代表。天然林下植被总量达到4500棵/公顷。以2米以上的矮树丛为主。林下植物包括五种灌木,如山灰、柳树、杜松、金银花和朱梅。林下物种总数为350棵/公顷。超过21种植物已被确定为活地被植物的一部分。地衣、石南、刺柏、毛缕草、柳茶、曲流草甸草的分布在50%以上。地衣、石南、越橘和刺桐在保护层中占主导地位。该牧草的成分为杜松多毛(32%)、地衣(23%)、石南(22%)、越橘(15%)、其他(8%)。研究的目的是确定地衣松火灾后森林生态系统的更新特征。研究对象是卡累利阿共和国普里奥涅日斯基森林地区森林火灾后的一个15岁的年轻森林。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Structural features of forest phytocoenosis formed on rock plants after a fire
It has been established that, depending on the forest-forming species and growing conditions, the restoration of the forest ecosystem in the burnt area is extended for a long period. A feature of the formation of a full-fledged forest phytocenosis after the forest fire is the delayed accumulation of organic matter. This is also connected with the time-delayed development of all components of the forest. Under these conditions, 15 years after the fire, young trees with a predominance of pine and birch were formed on the site of the burnt pine forest. The undergrowth of aspen, spruce and gray alder is represented by single individuals. The total amount of undergrowth of natural origin reaches 4.5 thousand trees /ha. The undergrowth with a height of more than 2 m prevails. The undergrowth includes five types of shrub species such as mountain ash, willow, juniper, honeysuckle and juneberry. The total number of understory species is 350 trees/ha. More than 21 plant species have been identified as part of the living ground cover. The occurrence of lichens, heather, polytrichum juniperus, hairy ojica, willow-tea and meandering meadow grass is more than 50 %. Lichens, heather, lingonberry and polytrichum juniperus predominate in the protective coating. The composition of the herbage is polytrichum juniperus — 32 %, lichens — 23 %, heather — 22 %, lingonberries — 15 %, others — 8 %. The purpose of the research is to identify the features of the forest ecosystem regeneration after the forest fire after the burnt lichen pine. The object of research was a 15-year-old young forest after the forest fire in the territory of the Prionezhsky forestry of the Republic of Karelia.
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