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Tarasov, Pavel E; Bezrukova, Elena V; Krivonogov, Sergey K (2009): Pollen data and pollen-based climate reconstruction for the KTK1 pollen record from Lake Kotokel. PANGAEA, https://doi.org/10.1594/PANGAEA.718105, Supplement to: Tarasov, PE et al. (2009): Late Glacial and Holocene changes in vegetation cover and climate in southern Siberia derived from a 15 kyr long pollen record from Lake Kotokel. Climate of the Past, 5, 285-295, https://doi.org/10.5194/cp-5-285-2009

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Abstract:
In this study a radiocarbon-dated pollen record from Lake Kotokel (52°47' N, 108°07' E, 458 m a.s.l.) located in southern Siberia east of Lake Baikal was used to derive quantitative characteristics of regional vegetation and climate from about 15 kyr BP (1 kyr = 1000 cal. yr) until today. Quantitative reconstruction of the late glacial vegetation and climate dynamics suggests that open steppe and tundra communities predominated in the study area prior to ca. 13.5 kyr BP and again during the Younger Dryas interval, between 12.8 and 11.6 kyr BP. The pollen-based climate reconstruction suggests lower-than-present mean January (~ -38 °C) and July (~ 12 °C) temperatures and annual precipitation (~ 270-300 mm) values during these time intervals. Boreal woodland replaced the primarily open landscape around Kotokel three times at about 14.8-14.7 kyr BP, during the Allerød Interstadial between 13.3-12.8 kyr BP and with the onset of the Holocene interglacial between 11.5 and 10.5 kyr BP, presumably in response to a noticeable increase in precipitation, and in July and January temperatures. The maximal spread of the boreal forest (taiga) communities in the region is associated with a warmer and wetter-than-present climate (Tw ~ 17-18 °C, Tc ~ -19 °C, Pann ~ 500-550 mm) that occurred ca. 10.8-7.3 kyr BP. During this time interval woody vegetation covered more than 50 % of the area within a 21x21 km window around the lake. The pollen-based best modern analogue reconstruction suggests a decrease in woody cover percentages and in all climatic variables about 7-6.5 kyr BP. Our results demonstrate a gradual decrease in precipitation and mean January temperature towards their present-day values in the region around Lake Kotokel since that time.
Coverage:
Latitude: 52.792800 * Longitude: 108.124400
Date/Time Start: 2007-07-15T00:00:00 * Date/Time End: 2007-07-15T00:00:00
Minimum DEPTH, sediment/rock: 0.015 m * Maximum DEPTH, sediment/rock: 9.000 m
Event(s):
KTK1 * Latitude: 52.792800 * Longitude: 108.124400 * Date/Time: 2007-07-15T00:00:00 * Elevation: 458.0 m * Location: Lake Kotokel * Device: Piston corer (PC) * Comment: Water depth 3.5 m
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1DEPTH, sediment/rockDepthmGeocode
2AGEAgeka BPGeocode
3Boreal treesBoreal trees%Tarasov, Pavel ECounting, palynology
4Boreal shrubsBoreal shrubs%Tarasov, Pavel ECounting, palynology
5Herbs, coverHerbs cov%Tarasov, Pavel ECounting, palynology
6Pinus sibirica-typeP. sibirica-T%Bezrukova, Elena VCounting, palynology
7Pinus pumila-typeP. pumila-T%Bezrukova, Elena VCounting, palynology
8Pinus sylvestris-typeP. sylvestris-T%Bezrukova, Elena VCounting, palynology
9Picea obovataP. obovata%Bezrukova, Elena VCounting, palynology
10LarixLar%Bezrukova, Elena VCounting, palynology
11Abies sibiricaA. sibirica%Bezrukova, Elena VCounting, palynology
12UlmusUlmus%Bezrukova, Elena VCounting, palynology
13Betula sect. Nanae/Fruticosae-typeB. sect. Nanae/Fruticosae-T%Bezrukova, Elena VCounting, palynology
14Betula sect. Albae-typeBet.Se.A-T%Bezrukova, Elena VCounting, palynology
15Alnus fruticosa-typeA. fruticosa-T%Bezrukova, Elena VCounting, palynology
16SalixSalix%Bezrukova, Elena VCounting, palynology
17RibesRibes%Bezrukova, Elena VCounting, palynology
18GrossulariaceaeGrossulariaceae%Bezrukova, Elena VCounting, palynology
19EricalesEricales%Bezrukova, Elena VCounting, palynology
20EphedraEphedra%Bezrukova, Elena VCounting, palynology
21ApiaceaeApiaceae%Bezrukova, Elena VCounting, palynology
22ArtemisiaArtemisia%Bezrukova, Elena VCounting, palynology
23AsteroideaAsteroidea%Bezrukova, Elena VCounting, palynology
24CichorioideaeCichorioideae%Bezrukova, Elena VCounting, palynology
25BrassicaceaeBrassicac%Bezrukova, Elena VCounting, palynology
26CaryophyllaceaeCphae%Bezrukova, Elena VCounting, palynology
27ChenopodiaceaeChenopod%Bezrukova, Elena VCounting, palynology
28CyperaceaeCyperac%Bezrukova, Elena VCounting, palynology
29FabaceaeFabaceae%Bezrukova, Elena VCounting, palynology
30IridaceaeIridaceae%Bezrukova, Elena VCounting, palynology
31LamiaceaeLamiaceae%Bezrukova, Elena VCounting, palynology
32OnagraceaeOnagraceae%Bezrukova, Elena VCounting, palynology
33PlantagoPlantago%Bezrukova, Elena VCounting, palynology
34PoaceaePoac%Bezrukova, Elena VCounting, palynology
35PolygonumPolygonum%Bezrukova, Elena VCounting, palynology
36RanunculaceaeRanae%Bezrukova, Elena VCounting, palynology
37RosaceaeRosae%Bezrukova, Elena VCounting, palynology
38SanguisorbaSan%Bezrukova, Elena VCounting, palynology
39TaraxacumTaraxacum%Bezrukova, Elena VCounting, palynology
40ThalictrumTha%Bezrukova, Elena VCounting, palynology
41Pollen totalPollen tot#Bezrukova, Elena VCounting, palynologyterrestrial
42AlismaAlisma%Bezrukova, Elena VCounting, palynology
43SparganiumSparganium%Bezrukova, Elena VCounting, palynology
44Typha latifoliaT. latifolia%Bezrukova, Elena VCounting, palynology
45SphagnumSph%Bezrukova, Elena VCounting, palynology
46LycopodiumLyc%Bezrukova, Elena VCounting, palynology
47Lycopodium annotinumL. annotinum%Bezrukova, Elena VCounting, palynology
48Lycopodium clavatumL. clavatum%Bezrukova, Elena VCounting, palynology
49Lycopodium pungensL. pungens%Bezrukova, Elena VCounting, palynology
50Lycopodium complanatumL. complanatum%Bezrukova, Elena VCounting, palynology
51Lycopodium alpinumL. alpinum%Bezrukova, Elena VCounting, palynology
52MeeseaMeesea%Bezrukova, Elena VCounting, palynology
53PolypodiaceaePolypo%Bezrukova, Elena VCounting, palynology
54Selaginella sibiricaS. sibirica%Bezrukova, Elena VCounting, palynology
55Selaginella sanguinolentaS. sanguinolenta%Bezrukova, Elena VCounting, palynology
56EquisetaceaeEquisetaceae%Bezrukova, Elena VCounting, palynology
57BryalesBryales%Bezrukova, Elena VCounting, palynology
58PteridiumPtd%Bezrukova, Elena VCounting, palynology
59AthyriumAthyrium%Bezrukova, Elena VCounting, palynology
60BotrychiumBot%Bezrukova, Elena VCounting, palynology
61Pollen and sporesPollen+spores#Bezrukova, Elena VCounting, palynologytotal
62Precipitation, annual meanMAPmmTarasov, Pavel ECalculated, see reference(s)
63Running averageRun avgTarasov, Pavel ECalculated, see reference(s)annual precipitation, 3-point, in mm/a
64Temperature, coldest monthCMT°CTarasov, Pavel ECalculated, see reference(s)
65Running averageRun avgTarasov, Pavel ECalculated, see reference(s)coldest month temperature, 3-point, in deg C
66Temperature, warmest monthWMT°CTarasov, Pavel ECalculated, see reference(s)
67Running averageRun avgTarasov, Pavel ECalculated, see reference(s)warmest month temperature, 3-point, in deg C
68Broadleaved woody coverBroadleaved woody cover%Tarasov, Pavel ECalculated, see reference(s)
69Broadleaved woody cover, standard deviationBroadleaved woody cover std dev±Tarasov, Pavel ECalculated, see reference(s)
70Needleleaved woody coverNeedleleaved woody cover%Tarasov, Pavel ECalculated, see reference(s)
71Needleleaved woody cover, standard deviationNeedleleaved woody cover std dev±Tarasov, Pavel ECalculated, see reference(s)
72Woody cover, totalWoody cover%Tarasov, Pavel ECalculated, see reference(s)
73Open vegetationOpen vegetation%Tarasov, Pavel ECalculated, see reference(s)
74ScoreScoreTarasov, Pavel ECalculated, see reference(s)Tundra
75ScoreScoreTarasov, Pavel ECalculated, see reference(s)Taiga
76ScoreScoreTarasov, Pavel ECalculated, see reference(s)Steppe
Size:
9466 data points

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