Grishin S.Yu., Krestov P. V., Verkholat V.P., Yakubov V.V.
Recovery of vegetation on the Shiveluch volcano after catastrophe of 1964
Year: 2000, Issue: XLVI, Pages: 73 - 104
The eruption of Shivcluch volcano in the November 1964 was the one of the biggest in XX century on Kamchatka. On the area about 100 square kilometers the vegetation was completely destroyed by piroclastic flows (0.3 0.5 km') and buried by the materials of volcanic cone (1.5 km3). After eruption the territory turned to volcanic desert, and primary succession had started. The investigations of 5 transects (1300 1 by 1 m plots in total) established in volcanic deserts showed the considerable difference in revegetation on the piroclastic flows and deposits of materials from volcanic cone. In total 127 species including 54 species of bryophytcs and lichens were recognized as pioneer species. Near the same low cover was characteristic for both types of deposits, although this parameter for piroclastic flows was higher. The differences in ccobiomorph spectra and their relationships with different kinds of substrate have been indicated. On area in 200-300 square kilometers the vegetation in part was destroyed by the ash-fall, and mainly secondary succession currently predominates. TI1c scales of communities destruction in relation to deposited tephra and the trends in recovery have been shown by the examples of series of geobotanical descriptions. The list of vascular plants in Shivcluch volcano area included 215 species.