Botanicheskii zhurnal №11 / 2011 . – P. 1440-1457

Citation database: RSCI

Heading: Сообщения
UDC: 581.526.56 571.66

Authors: Кораблев А. П., Нешатаева В. Ю.

Abstract:
На основании анализа 168 геоботанических описаний пробных площадей изучено формирование растительного покрова на датированных лавовых потоках вулканического плато Толбачинский дол. Приведена геоботаническая характеристика пионерных, серийных и длительнопроизводных сообществ на 7 лавовых потоках возраста от 35 до 1800 лет в пределах лесного пояса. Установлены последовательные стадии формирования лесных сообществ на разновозрастных лавовых субстратах. Дана оценка продолжительности различных стадий первичных сукцессий.

Keywords: лесная растительность, вулканогенные факторы, динамика, сукцессии, Камчатка

Name in english: The forest vegetation dynamics on the lava-flows of Tolbachik volcano plateau (Klyuchevskaya volcano group, Kamchatka)

Abstract in english:
The detailed floristic and plant community characteristics of the serial and subclimax woodlands and forest communities at the different-aged lava-flows (from 35 to 1800 yrs) on the volcanic plateau Tolbachinsky Dol are given. The specific serial and subclimax volcanogenic forest communities - pioneer herb aggregations, epilithophyte lichen and moss communities, poplar (Populus suaveolens) and larch (Larix cajanderi) open-forests were studied in details. They were typical on the young volcanic substrata in the forest belt (at the altitude 150-700 m a. s. l.). At the slopes of the volcanic plateau Tolbachinsky Dol the poplar, larch and Siberian dwarf-pine (Pinus pumila) pioneer open-woodlands were formed at young lava-flows replacing the former stone-birch and larch forests with the under storey of Siberian dwarf-pine and dwarf-alder (Alnus fruticosa subsp. kamtschstica) shrubs that had been destroyed by the recent volcanic eruptions. The patterns of the pioneer plant successions on lava-flows are discussed.

Keywords in English: forest vegetation, volcanogenic factors, dynamics, successions, Kamchatka

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