Post on 08-Aug-2020
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Supplementary material (Tables S1-S3, Figures S1-S7) 1
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Diverse growth trends and climate responses across Eurasia’s boreal forest 3
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Short title: Growth variability and climate sensitivity of boreal forests 5
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Lena Hellmann1,2
, Leonid Agafonov3, Fredrik Charpentier Ljungqvist
4,5, Olga Churakova 7
(Sidorova)6, Elisabeth Düthorn
7, Jan Esper
7, Lisa Hülsmann
1,6, Alexander V. Kirdyanov
8,9, 8
Pavel Moiseev10
, Vladimir S. Myglan9, Anatoly N. Nikolaev
11,12, Frederick Reinig
1, Fritz H. 9
Schweingruber1, Olga Solomina
13, Willy Tegel
14, and Ulf Büntgen
1,2,15,* 10
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1Swiss Federal Research Institute, WSL, Birmensdorf, Switzerland 12
2Oeschger Centre for Climate Change Research, Bern, Switzerland 13
3Institute of Plant and Animal Ecology UD RAS, Yekaterinburg, Russia 14
4Department of History, Stockholm University, Sweden 15
5Bolin Centre for Climate Research, Stockholm University, Sweden 16
6ETH Zurich, Institute of Terrestrial Ecosystems, Zurich, Switzerland 17
7Johannes Gutenberg University, Mainz, Germany 18
8V.N. Sukachev Institute of Forest SB RAS, Krasnoyarsk, Russia 19
9Siberian Federal University, Krasnoyarsk, Russia 20
10Institute of Plant and Animal Ecology, Ural Division, RAS, Yekaterinburg, Russia 21
11North-Eastern Federal University, Yakutsk, Russia 22
12Melnikov Permafrost Institute, Yakutsk, Russia 23
13Institute of Geography, RAS, Moscow, Russia 24
14Institute for Forest Sciences IWW, University of Freiburg, Freiburg, Germany 25
15Global Change Research Centre AS CR, Brno, Czech Republic 26
27 * Corresponding Author: buentgen@wsl.ch, phone: +41 44 7392 479 (679) 28
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Table S1: AGR per grid (N0-N8 and S0-S8) and species (Larix, Pinus, Picea). 38
AGR (mm) N0 N1 N2 N3 N4 N5 N6 N7 N8
Larix - - 0.74 1.34 0.62 0.42 0.83 0.58 0.72
Pinus 0.92 1.17 1.08 1.40 - - 0.69 - -
Picea 1.06 1.00 1.06 0.74 0.59 0.33 - - -
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AGR (mm) S0 S1 S2 S3 S4 S5 S6 S7 S8
Larix - 1.73 0.92 1.12 0.68 0.69 1.01 0.50 1.57
Pinus 0.93 1.21 1.10 1.14 0.87 0.71 1.15 1.44 -
Picea 1.71 1.85 0.90 0.91 0.93 0.88 0.67 - -
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Table S2: Mean segment length (MSL) per grid (N0-N8 and S0-S8) and species (Larix, 41
Pinus, Picea). 42
MSL (years) N0 N1 N2 N3 N4 N5 N6 N7 N8
Larix - - 113 92 94 107 105 132 101
Pinus 118 108 110 49 - - 114 - -
Picea 90 92 83 75 100 64 - - -
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MSL (years) S0 S1 S2 S3 S4 S5 S6 S7 S8
Larix - 105 112 77 115 48 94 141 49
Pinus 99 86 102 94 110 67 75 67 -
Picea 58 65 95 76 89 77 102 - -
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Table S3: Significant correlation coefficients (x) of all 445 individual TRW site chronologies 45
against different monthly and seasonal temperature means (1951-1990). 46
Site JJ JJA June July Site JJ JJA June July Site JJ JJA June July
AIL x MEK russ114 x
AMGL MEL russ115
AMGP MESIM russ116
AMH x MND russ117
AML x MOL russ119 x x
AMT1L NADMP russ120
AMT2L NAM-1 russ121
AMTL NAM-2 russ122
AMTP NAM-3 russ123
ARE NAM-4 russ124 x x x
B02E NAML russ125
B19S x x NAMP russ126
BAV x x x NEL russ128
BAVLOW NER x russ132 x x x
Berezovo x NIRS russ134 x x x
BLS NKV russ138 x x x
ВOR NKV2 russ141
BPHL norw001 x x x russ142 x x x x
BrovkaLG norw002 x russ143
BrovkaPO norw003 russ144 x
BSTP norw004 russ145
BTM norw005 x russ146
BUGL norw006 russ147
BUGP norw007 russ148
BUGS x x norw008 x x x russ149
BUT x norw009 x x russ155
CHAL norw010 x x russ159
CHAS norw011 x russ160 x
CHICH norw012 x x russ161 x
CHKL norw013 russ162
CHKP norw015 x russ163
CHM x NOYBL russ165
CHUR NOYBP russ166
Churapcha OGNL x russ174 x x x
cp0 P0K russ175
cpy PIS russ177
cva PIT x russ178 x x x
DGML PlatLG x x russ179 x
DJP PlatPO russ180 x
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DYRG PTD russ181
e87 PTK russ182
e90 x x PTW russ183
ekn x x PUN russ184 x x x x
elm x RAZ russ185 x x x x
ELNL russ001 x x x x russ187 x x x
ep0 russ002 x russ188 x x x
etl x russ016 russ189 x x x
finl001 russ019 russ191 x x
finl002 russ021 russ192
finl003 russ022 x x russ193 x
finl004 russ023 russ194
finl005 russ024 x x russ195
finl008 russ025 x russ196
finl010 x x russ027 x russ197
finl011 x russ028 x x russ198
finl012 russ029 x russ199
finl013 russ030 x x x russ201
finl014 russ031 x x x x russ202
finl015 russ032 x x russ203
finl016 russ033 x x x russ204
finl017 russ034 russ206
finl018 russ035 x x x russ216 x
finl019 russ036 russ217
finl020 russ037 russ218
finl021 x x x russ038 x russ220 x x x x
finl022 x x x russ039 russ221 x x
finl038 russ040 russ223 x x x
finl039 russ041 x russ224 x x x x
finl040 russ042 russ225 x x x x
finl041 russ043 russ237 x x
finl042 russ044 x x x russ238 x
finl043 russ045 russ239 x x x x
finl044 russ046 russ242
finl045 russ047 S94
finl046 russ048 x SHU-E
finl047 russ049 SHU-L x x x x
finl049 russ050 SIN1
finl052 russ051 SIN2
finl054 x russ052 SIN3
finl055 x russ053 Site_A
finl056 russ055 Site_M
finl057 russ056 Site_S
finl058 russ057 SKS x
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finl059 russ058 SOSNS x x
finl060 x x x russ059 SOT
finl061 x x x russ060 SPL
finl062 x x x russ061 x SPP
finl063 russ062 SUNTAR x
finl064 russ063 SURG1P
finl065 russ064 SURG3P
finl066 x x russ065 x x swed002
finl1 russ066 swed004
finl2 russ069 swed006
finl3 russ070 swed007
finl4 russ071 x x swed008
GLIS russ072 swed009 x
GOL russ073 swed011 x x
GRN1L russ074 swed012
GRN3L russ075 swed013
GRN4L russ076 swed014 x x x
GRN5Р russ077 swed015 x x x
HOML russ078 x x swed017 x x x
HOMP russ079 x swed018
HOS russ080 x swed019 x
I11S x x russ081 swed020 x
I12L x x x russ082 swed305
JOU russ083 swed306
KAR russ084 swed312
Kazim russ085 x x x swed316
KES russ086 x swed317
KHA1_L x x x russ087 x x x swed318 x
KHA1_P x x russ088 swed319
KHA9_L x x russ089 swed322
KHA9_P x x x russ090 swed323
KHAP russ091 swed324
KHRL russ092 swed325
KHRP x russ093 swed326
KID russ094 x x swed327
KIR x x x russ095 tmc
KIW x russ096 x TOD x
KNK2L russ097 TOW x
KNK3L russ098 x x x TPK
KOK x russ099 TRU
KOT x x russ100 TUK
KOV russ101 x TURA2005 x
KUL russ102 TuraPISY
KURB x russ103 TYN
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KUU x russ104 V
KUU_pcab x russ105 VELL
KUZP russ106 VELS x x x
KUZS russ107 WHL
lkn x x russ108 YAKP
LOF x x x russ109 YAR
lp0 russ110 x x YKCH
MEBOR russ111 x x x ZOT
MEEXA russ112 ZOTPIOB
MEEXB russ113
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Figure S1: Tree-ring sites and their according elevation: (A) color codes refer to altitudinal 49
classes, the lowest sites are located at 0 m above sea level and the highest at 620 m. (B) shows 50
the altitudinal distribution of all sites. 51
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Figure S2: Growth trends of the three boreal species Pinus (green), Picea (orange), and Larix 53
(yellow). Data are separated between northern (N, 65-73°N) and southern (S, 60-65°N) 54
regions and from west to east from 0-20°E (0), 21-40°E (1), 41-60°E (2), 61-80°E (3), 81-55
100°E (4), 101-120°E (5), 121-140°E (6), 141-160°E (7), 161-180°E (8). Plus or minus signs 56
indicate the direction of trends and full circles highlight significant trends (p ≤ 0.01). 57
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Figure S3. Pearson’s correlation coefficients between TRW sites of pine, spruce, and larch 60
and June-July (JJ) temperature (A), June-July-August (JJA) temperature (B), June 61
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temperature (C), and July temperature (D). Colors indicate the correlation coefficients 62
classified into values <0.3, 0.3-0.39 and ≥0.4. Stars highlight significant (p ≤0.01) correlation 63
coefficients. Correlations were calculated over the period 1951-1990 against high-resolution 64
(0.5° × 0.5°) gridded temperature data, from the CRU dataset (CRU TS3.22, land only). TRW 65
chronologies were power transformed and age trend was removed by applying a negative 66
exponential detrending. Background shading indicates mean JJ temperature (A), mean JJA 67
temperature (B), mean June temperature (C), and mean July temperature (D) for 1950-2000 68
(Hijmans et al 2005). 69
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Figure S4. Pearson correlation coefficients against temperature (red, A-C) and precipitation 72
(D-F, blue) per species (A & D: Pinus, B & E: Picea, C & D: Larix), as a function of latitude, 73
with the dashed lines referring to species-specific linear trends. 74
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Figure S5. Pearson correlation coefficients against temperature (red, A-C) and precipitation 77
(D-F, blue) per species (A & D: Pinus, B & E: Picea, C & D: Larix), as a function of JJ 78
temperature. Lines show linear trends for each species. 79
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Figure S6. Pearson correlation coefficients against temperature (red, A-C) and precipitation 82
(D-F, blue) per species (A & D: Pinus, B & E: Picea, C & D: Larix), as a function of JJ 83
precipitation. Lines show linear trends for each species. 84
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Figure S7. (A) Mean inter-series and mean inter-site correlation per species for the different 87
grid cells. (B) Decreasing inter-site correlation between the sites per species with increasing 88
distance. 89