Age and ontogenetic structure of populations in Age and - PowerPoint PPT Presentation

Age and ontogenetic structure of populations in Age and ontogenetic structure of populations in Siberian stone Pine ( Pinus Pinus sibirica sibirica Du Du Tour) at the Tour) at the Siberian stone Pine ( forest- -tundra ecotone in the tundra ecotone in the Severo Severo- -Chuisky Chuisky Range Range forest (Central Altai) (Central Altai) Smelyantseva E.O., Timoshok E.E. Smelyantseva E.O., Timoshok E.E.

Severo-Chuisky mountain range is located in Russian Altai. The Aktru glacier basin (2100-4073 m a.s.l.) is on the northern slope of the Severo-Chuisky Range Aktru glacier basin

Aktru glacier basin Aktru glacier basin

Edaphic (2 (23 300 m 00 m a.s.l a.s.l.) forest line in valley of .) forest line in valley of Edaphic the Aktru river the Aktru river

Climatic (2400 m m a.s.l a.s.l.) forest line in valley of .) forest line in valley of Climatic (2400 the Aktru river the Aktru river

Scheme of individual tree (1), , Scheme of individual tree (1) group tree (2), and forest (3) lines group tree (2), and forest (3) lines

Location of sample areas of sample areas (SA) and (SA) and transects (T) transects (T) at at Location the forest- -tundra ecotone tundra ecotone the forest Т 15 SA25 Т 16 Т 21 SA16 SA26

SA 16 16 SA SA 25 25 SA Т 15 Т 15

Density and frequency of Siberian stone pine Density and frequency of Siberian stone pine trees in sample areas (SA) and transects (T) trees in sample areas (SA) and transects (T) № ПП и Т Altitude, м Size, м Density per frequency, 10 0 sq. % m 20 х 4 0 SA16 2250 -230 0 14 10 х 10 SA25 2350 20 10 х 10 SA26 2250 14 Т 15 10 х 4 0 2350 -24 0 0 8 50 Т 16 5 х 6 0 230 0 -2350 3 8 3 Т 21 10 х 70 2250 -230 0 4 57

Age peculiarities of populations in Siberian stone Age peculiarities of populations in Siberian stone pine at the forest- -tundra ecotone tundra ecotone pine at the forest № ПП и Т Т 15 Т 16 Т 21 SA16 SA25 SA26 Mean 8 1 70 8 9 4 8 4 6 50 age, year Lim 55-10 5 4 2-9 4 6 5-126 34 -6 2 33-55 30 -6 8

Ontogenetic spectra spectra in Siberian stone pine in Siberian stone pine Ontogenetic at the forest- -tundra ecotone tundra ecotone at the forest 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% Т 15 Т 16 Т 21 SA16 SA25 SA26 virginal tree young generative tree

One trunk One trunk One trunk One trunk Multi- -trunk trunk Multi tree with with tree with with tree tree tree tree symmetric asymmetric symmetric asymmetric crown crown crown crown

Biogroup of 3 Biogroup of 4 Biogroup of 3 Biogroup of 4 even- -aged aged uneven- -aged aged even uneven trees trees trees trees

Spectra of Siberian stone pine biomorphs biomorphs Spectra of Siberian stone pine at the forest- -tundra ecotone tundra ecotone at the forest 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% Т 15 Т 16 Т 21 SA16 SA25 SA26 а b c d Multi- - Multi One trunk One trunk Biogroup Biogroup Biogroup Biogroup trunk tree tree trunk tree tree uneven- -aged aged uneven even- -aged aged even trees trees trees trees

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