Grishin S. Yu., Krestov P. V., Verkholat V.P., Levus A.P.
The influence of catastrophic eruption (1907) of Ksudach volcano, Kamchatka on forest vegetation
Year: 1997, Issue: XLIII, Pages: 210 - 244
The largest eruption of XX century on Kamchatka 'has put the catastrophic loss for vegetation: on the area about 600 sq. km it was completely lost and on the area about 1800 sq. km was destroyed in essential degree. We have allocated three zones of devastation. In a zone 1 (more 100 cv of deposits) vegetation was lost completely and almost at once. The volcanic desert was formed there and the primary succession was began. The zone 2 (100-30 cm of deposits) represents transition from volcanic desert up to a partially damaged forest. In the zone 3 (less 30 cm of small-sized pumice) wood basically escaped and secondary succession had began. The duration of primary succession in volcanic desert can be appreciated by period of 1500-2000 years, mixed succession a zone 2 – 500 years, secondary succession - about 100-150 years.