TiBiTi, Suriname - SUR001 Additional Site Information Michael Köhl, Neda Lotfiomran Measurement type: Total ring width References: Michael Köhl, Prem R. Neupane, Neda Lotfiomran. 2017. The impact of tree age on biomass growth and carbon accumulation capacity: a retrospective analysis using tree ring data of three tropical tree species grown in natural forests of Suriname; Old trees sustain growth and carbon accumulation: a retrospective analysis Plos One, in press. Abstract: The world's forests play a pivotal role in the mitigation of global climate change. By photosynthesis they remove CO2 from the atmosphere and store carbon in their biomass. While old trees are generally acknowledged for a long carbon residence time, there is no consensus on their contribution to carbon accumulation due to a lack of long-term individual tree data. Tree ring analyses, which use anatomical differences in the annual formation of wood for dating growth zones, are a retrospective approach that provides growth patterns of individual trees over their entire lifetime. We developed time series of diameter growth and related annual carbon accumulation for 61 trees of the species Cedrela odorata (Meliacea), Hymenaea courbaril L. (Fabacea) and Goupia glabra (Goupiacea). The trees grew in unmanaged tropical wet-forests of Suriname and reached ages from 84 to 255 years. Most of the trees show positive trends of diameter growth and carbon accumulation over time. For some trees we observed fluctuating growth - periods of lower growth alternate with periods of increased growth. In the last quarter of their lifetime trees accumulate on average between 39 percent (C. odorata) and 50 percent (G. glabra) of their final carbon stock. This suggests that old-growth trees in tropical forests do not only contribute to carbon stocks by long carbon resistance times, but maintain high rates of carbon accumulation at later stages of their life time. Notes: Mixed species Goupia glabra Aubl. and Hymenaea courbaril L. (Fabaceae) Biomass accumulation study of growth of individual trees, crossdating not applied. Funded by: Bundesministerium für Ernährung und Landwirtschaft COFECHA output: Chronology file name : SUR001.CRN Measurement file name : SUR001.RWL Date checked : 18JUL17 Checked by : B. Bauer Beginning year : 1760 Ending year : 2016 Principal investigators: M. Köhl N. Lotfiomran Site name : TiBiTi Site location : Suriname Species information : GOGL GOUPIA Latitude : 0512 Longitude : -5514 Elevation : 14M Series intercorrelation: 0.123 Avg mean sensitivity : 0.335 Avg standard deviation : 1.004 Avg autocorrelation : 0.517 Number dated series : 41 Segment length tested : 50 Number problem segments: 205 Pct problem segments : 85.06 PART 5: CORRELATION OF SERIES BY SEGMENTS: TiBiTi GOGL+HYCO 11:58 Tue 18 Jul 2017 Page 5 ----------------------------------------------------------------------------------------------------------------------------------- Correlations of 50-year dated segments, lagged 25 years Flags: A = correlation under .3281 but highest as dated; B = correlation higher at other than dated position Seq Series Time_span 1775 1800 1825 1850 1875 1900 1925 1950 1975 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 GOGL21 1835 2015 .34 .11B .37 .47 .36 .24B .14B 2 GOGL22 1858 2015 .11B .11B .28B .29A .32A .37 3 GOGL23 1869 2015 .02B-.09B .01B .26A .17B .42 4 GOGL24 1879 2015 .17B .32B .20B .24B .28A 5 GOGL25 1882 2015 .18B .30A .27B .21B .17B 6 GOGL26 1883 2015 .29B .25B .10B .26A .24A 7 GOGL27 1903 2015 .33A .06B-.10B .17B 8 GOGL28 1827 2015 -.15B-.09B .05B .47 .51 .29A .06B 9 GOGL29 1831 2015 .35 .25A .15B .43 .40 .21A .23A 10 GOGL30 1844 2015 .13B-.04B .17B .29B .38 .35 .26A 11 GOGL31 1847 2015 .26B .25B .07B .22A .35 .23B .03B 12 GOGL32 1877 2015 .53 .48 .38 .49 .59 13 GOGL33 1882 2015 .46 .52 .46 .16B .24B 14 GOGL34 1889 2015 .47 .40 .54 .40 .29B 15 GOGL35 1895 2015 .18B .24B .43 .36 .09B 16 GOGL36 1897 2015 .55 .60 .53 .30A .35 17 GOGL37 1843 2014 -.04B-.11B-.11B-.10B-.09B-.10B-.31B 18 GOGL38 1838 2014 .09B-.03B .19B .28B .13B-.01B-.03B 19 GOGL39 1861 2016 .07B .23B .16B-.08B-.11B .17B 20 GOGL40 1877 2016 .03B .18B .14B .23A .27A 21 GOGL41 1892 2016 .16B .08B-.02B .17A .32A 22 HYCO42 1760 2014 -.32B-.31B-.24B-.21B-.23B .23B .27B-.10B-.17B 23 HYCO43 1787 2016 -.17B-.10B .31A .16B-.09B-.11B .07B .38 .22A 24 HYCO44 1795 2015 .08B .12B .28B-.06B-.15B-.11B-.02B .13B .15B 25 HYCO45 1806 2015 .27A .37 .14B-.12B-.07B-.04B-.22B-.14B 26 HYCO46 1809 2016 -.01B-.07B .00B .01B .07B .15B .10B .09B 27 HYCO47 1825 2015 .01B .05B .12B .03B .09B .31A .25A 28 HYCO48 1829 2016 .39 .40 -.15B-.01B .14B-.02B .09B 29 HYCO49 1846 2014 .09B .08B-.05B .07B .16B .09B-.03B 30 HYCO50 1847 2016 .06B .12B-.21B .01B .19B .04B .12B 31 HYCO51 1878 2014 -.06B-.02B-.04B-.26B-.11B 32 HYCO52 1888 2014 -.25B-.19B .01B .17B .05B 33 HYCO53 1890 2016 .02B-.04B .24A .24A .29A 34 HYCO54 1892 2015 .10B .04B .02B .06B .01B 35 HYCO55 1898 2015 -.05B-.05B .02B .16B-.07B 36 HYCO56 1900 2015 .12B-.06B-.04B .08B 37 HYCO57 1905 2014 .09B .08B .12B .05B 38 HYCO58 1906 2014 .08B .04B .08B-.01B 39 HYCO59 1907 2015 -.06B-.03B-.11B .09B 40 HYCO60 1917 2015 .14B .06B-.16B .01B 41 HYCO61 1920 2014 .00B .04B .10B .03B Av segment correlation -.13 .00 .14 .06 .09 .16 .17 .13 .13 PART 7: DESCRIPTIVE STATISTICS: TiBiTi GOGL+HYCO 11:58 Tue 18 Jul 2017 Page 8 ----------------------------------------------------------------------------------------------------------------------------------- Corr //-------- Unfiltered --------\\ //---- Filtered -----\\ No. No. No. with Mean Max Std Auto Mean Max Std Auto AR Seq Series Interval Years Segmt Flags Master msmt msmt dev corr sens value dev corr () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 GOGL21 1835 2015 181 7 3 .305 1.79 6.26 .783 .621 .253 2.64 .335 -.005 2 2 GOGL22 1858 2015 158 6 5 .263 1.76 5.25 .680 .321 .299 3.10 .640 -.019 1 3 GOGL23 1869 2015 147 6 5 .176 1.73 4.56 .701 .563 .261 2.66 .380 -.046 1 4 GOGL24 1879 2015 137 5 5 .215 1.86 5.23 .827 .458 .324 2.68 .525 -.033 1 5 GOGL25 1882 2015 134 5 5 .207 1.71 4.07 .664 .427 .292 2.87 .447 -.048 2 6 GOGL26 1883 2015 133 5 5 .232 1.84 4.65 .672 .411 .290 2.78 .556 .012 1 7 GOGL27 1903 2015 113 4 4 .178 2.71 13.18 2.171 .347 .391 2.89 .492 .067 1 8 GOGL28 1827 2015 189 7 5 .073 1.53 3.18 .543 .613 .242 2.69 .353 .034 1 9 GOGL29 1831 2015 185 7 4 .306 1.93 5.20 .743 .575 .256 2.65 .379 -.027 1 10 GOGL30 1844 2015 172 7 5 .209 1.79 3.46 .462 .242 .242 2.58 .321 -.005 2 11 GOGL31 1847 2015 169 7 6 .196 1.69 3.72 .507 .381 .236 2.86 .498 -.021 2 12 GOGL32 1877 2015 139 5 0 .507 2.02 4.34 .756 .615 .260 2.72 .555 -.024 1 13 GOGL33 1882 2015 134 5 2 .381 2.17 4.12 .628 .249 .283 2.85 .537 -.037 2 14 GOGL34 1889 2015 127 5 1 .415 1.59 3.64 .474 .331 .235 2.88 .463 .032 1 15 GOGL35 1895 2015 121 5 3 .214 1.73 3.97 .626 .466 .274 2.79 .493 -.008 1 16 GOGL36 1897 2015 119 5 1 .444 1.79 3.27 .586 .602 .226 2.70 .603 -.006 1 17 GOGL37 1843 2014 172 7 7 -.125 1.36 3.47 .556 .583 .266 2.66 .394 -.046 1 18 GOGL38 1838 2014 177 7 7 .113 1.56 3.34 .542 .593 .220 2.99 .509 .045 1 19 GOGL39 1861 2016 156 6 6 .100 2.44 4.63 .847 .416 .290 2.55 .358 .017 1 20 GOGL40 1877 2016 140 5 5 .161 2.05 7.00 1.070 .516 .309 2.90 .436 -.008 1 21 GOGL41 1892 2016 125 5 5 .176 2.07 4.83 .959 .510 .315 2.82 .603 -.041 2 22 HYCO42 1760 2014 255 9 9 -.152 1.52 6.04 .907 .350 .431 3.18 .528 .036 1 23 HYCO43 1787 2016 230 9 8 -.010 1.81 7.05 1.172 .654 .381 2.92 .544 .059 3 24 HYCO44 1795 2015 221 9 9 .029 1.10 3.68 .541 .605 .357 2.55 .361 -.014 1 25 HYCO45 1806 2015 210 8 7 .069 1.91 7.88 1.138 .681 .345 2.82 .523 .093 7 26 HYCO46 1809 2016 208 8 8 .018 2.05 5.19 .916 .541 .334 2.80 .460 .038 1 27 HYCO47 1825 2015 191 7 7 .090 1.77 9.90 1.772 .834 .395 2.76 .524 -.025 1 28 HYCO48 1829 2016 188 7 5 .131 2.62 8.47 1.354 .326 .425 2.69 .392 .024 3 29 HYCO49 1846 2014 169 7 7 .053 2.20 6.96 1.372 .652 .395 2.99 .472 -.016 1 30 HYCO50 1847 2016 170 7 7 .067 2.52 8.04 1.510 .638 .413 2.70 .471 -.053 1 31 HYCO51 1878 2014 137 5 5 -.067 2.47 5.79 1.062 .624 .283 2.60 .424 .013 4 32 HYCO52 1888 2014 127 5 5 -.019 3.07 7.98 1.942 .722 .311 2.68 .495 -.053 1 33 HYCO53 1890 2016 127 5 5 .143 1.60 5.59 1.061 .612 .461 2.66 .495 -.098 1 34 HYCO54 1892 2015 124 5 5 .018 2.85 8.24 1.192 .530 .348 2.70 .401 -.003 1 35 HYCO55 1898 2015 118 5 5 -.009 2.23 4.84 1.187 .356 .538 2.43 .393 -.010 1 36 HYCO56 1900 2015 116 4 4 .030 2.64 6.25 1.304 .655 .326 2.57 .463 .004 1 37 HYCO57 1905 2014 110 4 4 .070 2.52 7.46 1.409 .317 .562 2.57 .430 -.056 2 38 HYCO58 1906 2014 109 4 4 .046 2.89 9.25 2.170 .484 .510 3.01 .629 -.010 1 39 HYCO59 1907 2015 109 4 4 -.027 2.73 6.63 1.274 .391 .395 2.63 .479 .013 1 40 HYCO60 1917 2015 99 4 4 .094 2.67 6.75 1.563 .622 .397 2.79 .487 .060 1 41 HYCO61 1920 2014 95 4 4 .011 3.14 8.90 2.088 .459 .511 2.75 .680 -.016 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 6241 241 205 .123 2.02 13.18 1.004 .517 .335 3.18 .471 -.002