GEOTHERMS AND FOREST FORMATION IN INSULAR VOLCANIC LANDSCAPE | Journal of Global Ecology ..........

In the neighbourhood of the degassing Mendeleev volcano, conducting conduits of a magma-based geothermal system generating extraordinary rises in soil temperature have been discovered (Kunashir Island, South Kuril ridge). This mechanism allowed for the long-term trespass of more southern species and entire groups into the boreal-forest ecoregion. The early stages of buffer forest communities, as well as "climatically unjustifiable" but sufficiently stable subboreal forest ecosystems, were developed. Geothermal energy causes plant cover to reorganise in order to promote floro- and phytocoenotic diversity at the expense of biomass creation rate. Only island volcanic landscapes have the greatest diversity of floristic and phytocoenological structures that create terrestrial vegetation at the transitional zone from continent to ocean (under specified climatic circumstances).

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