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Excursion for understanding different sites in Siberia

Excursion for understanding different sites in Siberia. (11 to 28 September, 2006). continuous >500m continuous 300-500m continuous 100-300m discontinuous 100m> island 25m>. Sites. Igarka (N 67 ˚ 29.9’ , E 86˚25.26’) Lower Yenisei (Germany).

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Excursion for understanding different sites in Siberia

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  1. Excursion for understanding different sites in Siberia (11 to 28 September, 2006)

  2. continuous>500m continuous300-500m continuous100-300m discontinuous100m> island25m> Sites Igarka (N 67˚29.9’, E 86˚25.26’)Lower Yenisei (Germany) Tura (N 64˚12’, E 100˚27’) Middle Yenisei (Japan) Tura Yakutsk (N 62˚19’, E 129˚31’) Middle Lena (Japan)

  3. Igarka: Border between dark Taiga (Spruce) and light Taiga (Larch) ,hilly relief Tura：Westernmost edge of Light Taiga (Larch), hilly relief Yakutsk：Typical Light Taiga (Larch), flat relief ？ Igarka, Tura, Yakutsk Central Siberia Tura and Igarka: no thermokarst East Siberia Yakutsk: many large thermokarsts

  4. Fall in 2006 Summer in 2002 Thermokarst Larch Birch Burnt in 2002 Why are many thermokarsts in east Siberia? Effect of forest fire on thermokarst formation？

  5. Omskaya oblast 1% Others 3% 11.7 million ha Kemerovskaya oblast 1% Novosibirskaya oblast 2% Altaiskiy krai 3% Respublika Buryatiya 3% Khabarovskiy krai 3% Krasnoyarskiy kray 4% Respublika Sakha 43% Irkutskaya oblast 5% 1.6% of total area Chitinskaya oblast 7% Respublika Tuva 9% Amurskaya oblast 16% Burnt area in 2002 fire in RussiaInternational Forest Fire News (IFFN) No. 28 (2003) Strong impact of forest fire in east Siberia

  6. Bullar Long term thermokarst formation (Yakutsk) Photo by R. Desyatkin Formation beginning: between 10 and several hundredyears Formation of wetland between 300 to 600-700 years Formation of wetland Duede Between 1-1.5 to 2-3 thousand years Tuumpu Formation of lake Between 7-8 to 10-16 (old alas)thousand years Formation of grassland Alas

  7. 5年 15年 50年 5年 50年 200年 Regeneration of forest after fire Generation of Birch forest ？ Life span of Birch is 50 to 80 years Generation of Larch forest

  8. Group Photo in Yakutsk

  9. Larch, Yakutsk

  10. Alas, Yakutsk

  11. Polygon, Yakutsk

  12. Mix of Spruce, Larch and Birch (Igarka)

  13. Thermokarst in Bogs (Igarka)

  14. Permafrost (Igarka)

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