Little Concord Pond, Maine - ME045 Additional Site Information R. Stockton Maxwell Soumaya Belmecheri Alan H. Taylor References: R. Stockton Maxwell, Soumaya Belmecheri, Alan H. Taylor, Kenneth J. Davis, Troy W. Ocheltree. 2020. Carbon isotope ratios in tree rings respond differently to climatic variations than tree-ring width in a mesic temperate forest. Agricultural and Forest Meteorology, Vol. 288-289, 108014. DOI: 10.1016/j.agrformet.2020.108014 Maxwell, R.S., Belmecheri, S., Taylor, A.H., Davis, K.J., Guerrieri, R., Moore, D.J., Rayback, S.A.. 2021 in press. Global Change Biology, in press. Notes: New England Hemlock Transect, 10 sites along a 500+ km transect stretching from CT to ME. Data collected for Project "Estimating Forest Productivity Over Regional and Multi-Decadal Time Scales Using Carbon Isotopes in Tree Rings." While the larger project focused on carbon isotopes, here we present tree-ring width data associated with the project. Keywords: carbon isotopes, climate response, dendrochronology, forest productivity Funding: US National Science Foundation BCS-1229887 COFECHA output: Chronology file name : ME045.CRN Measurement file name : ME045.RWL Date checked : 08JAN21 Checked by : B. Bauer Beginning year : 1740 Ending year : 2012 Principal investigators: R. Stockton Maxwell Soumaya Belmecheri Alan H. Taylor Site name : Little Concord Pond Site location : Maine Species information : TSCA EASTERN HEMLOCK Latitude : 4426 Longitude : -07032 Elevation : 380M Series intercorrelation: 0.608 Avg mean sensitivity : 0.248 Avg standard deviation : 0.661 Avg autocorrelation : 0.771 Number dated series : 40 Segment length tested : 50 Number problem segments: 3 Pct problem segments : 1.20 PART 5: CORRELATION OF SERIES BY SEGMENTS: Little Concord Pond 07:54 Fri 08 Jan 2021 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 LCP01A 1910 2012 .69 .63 .67 .71 2 LCP01B 1913 2012 .47 .38 .45 .54 3 LCP01C 1919 2012 .49 .45 .54 .60 4 LCP02A 1896 2012 .58 .68 .53 .66 .72 5 LCP02B 1900 2012 .59 .60 .64 .64 6 LCP02C 1922 2012 .58 .59 .60 .68 7 LCP03A 1906 2012 .56 .51 .58 .65 8 LCP03B 1911 2012 .49 .47 .60 .61 9 LCP03C 1892 2012 .68 .68 .68 .78 .70 10 LCP04A 1900 2012 .65 .66 .52 .58 11 LCP04B 1898 2012 .45 .45 .46 .33 .34 12 LCP04C 1896 2012 .63 .66 .61 .52 .61 13 LCP05A 1923 2012 .47 .47 .66 .70 14 LCP05B 1835 2012 .79 .78 .62 .60 .69 .76 .80 15 LCP05C 1820 2012 .73 .75 .72 .58 .63 .77 .73 .72 16 LCP06A 1861 2012 .57 .71 .70 .57 .68 .69 17 LCP06B 1860 2012 .67 .58 .57 .64 .73 .60 18 LCP08B 1880 2012 .55 .82 .76 .70 .73 19 LCP08C 1871 2012 .52 .58 .83 .78 .73 .69 20 LCP09A 1842 2012 .57 .57 .66 .55 .55 .68 .72 21 LCP09B 1866 2012 .73 .63 .57 .61 .69 .77 22 LCP09C 1869 2012 .66 .65 .59 .58 .63 .68 23 LCP10A 1810 2012 .27B .42 .58 .57 .51 .63 .74 .67 24 LCP11A 1810 2012 .46 .59 .66 .66 .78 .75 .66 .72 25 LCP11B 1810 2012 .64 .69 .69 .71 .67 .60 .57 .52 26 LCP11C 1829 2012 .66 .74 .71 .69 .71 .35 .36 27 LCP12B 1822 2012 .58 .61 .52 .63 .78 .70 .64 .77 28 LCP12C 1860 2012 .47 .45 .56 .67 .56 .64 29 LCP14B 1810 2012 .52 .59 .51 .43 .48 .47 .59 .56 30 LCP14C 1876 2012 .57 .69 .63 .60 .62 31 LCP15A 1810 2012 .58 .64 .70 .84 .85 .80 .67 .68 32 LCP15B 1828 2012 .47 .74 .83 .78 .73 .71 .65 33 LCP17A 1817 2012 .62 .70 .51 .60 .71 .71 .36 .40 34 LCP17B 1810 2012 .70 .56 .42 .61 .63 .59 .42 .50 35 LCP18A 1869 2012 .59 .64 .65 .64 .71 .66 36 LCP19B 1810 2012 .75 .68 .52 .62 .50 .49 .62 .57 37 LCP20A 1810 2012 .55 .61 .48 .55 .66 .70 .70 .75 38 LCP22A 1740 2012 .27B .36 .57 .56 .57 .55 .52 .59 .62 39 LCP22B 1792 2012 .33A .42 .62 .46 .39 .40 .56 .77 .64 40 LCP07C 1827 2012 .54 .37 .59 .58 .39 .49 .56 Av segment correlation .30 .55 .62 .59 .61 .62 .61 .62 .63 PART 7: DESCRIPTIVE STATISTICS: Little Concord Pond 07:54 Fri 08 Jan 2021 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 LCP01A 1910 2012 103 4 0 .701 2.02 4.78 .960 .851 .192 2.62 .536 -.022 1 2 LCP01B 1913 2012 100 4 0 .510 2.67 5.25 1.163 .912 .157 2.58 .430 -.043 1 3 LCP01C 1919 2012 94 4 0 .577 2.77 5.43 1.107 .905 .163 2.58 .482 -.105 1 4 LCP02A 1896 2012 117 5 0 .656 1.32 2.73 .455 .770 .183 2.55 .411 -.035 1 5 LCP02B 1900 2012 113 4 0 .610 1.82 3.62 .602 .840 .144 2.62 .424 -.091 1 6 LCP02C 1922 2012 91 4 0 .646 1.40 3.10 .463 .774 .167 2.82 .494 -.055 1 7 LCP03A 1906 2012 107 4 0 .603 1.86 4.50 .827 .888 .174 2.59 .406 -.057 1 8 LCP03B 1911 2012 102 4 0 .559 1.70 4.03 .802 .885 .173 2.49 .415 -.049 1 9 LCP03C 1892 2012 121 5 0 .687 1.64 3.75 .873 .879 .227 2.66 .546 -.038 1 10 LCP04A 1900 2012 113 4 0 .615 1.68 4.38 .719 .822 .190 2.83 .510 -.052 1 11 LCP04B 1898 2012 115 5 0 .425 1.36 2.75 .534 .767 .213 2.76 .450 .004 1 12 LCP04C 1896 2012 117 5 0 .632 1.70 4.33 .744 .838 .202 3.06 .585 -.062 1 13 LCP05A 1923 2012 90 4 0 .596 1.71 3.14 .447 .567 .187 2.47 .376 -.063 1 14 LCP05B 1835 2012 178 7 0 .722 1.01 2.50 .664 .888 .292 2.77 .432 -.023 1 15 LCP05C 1820 2012 193 8 0 .694 1.24 4.06 .866 .886 .289 2.65 .410 -.034 2 16 LCP06A 1861 2012 152 6 0 .641 1.38 3.75 .791 .864 .265 2.53 .455 -.082 1 17 LCP06B 1860 2012 153 6 0 .596 1.24 3.52 .755 .775 .323 2.53 .379 -.003 1 18 LCP08B 1880 2012 133 5 0 .666 1.73 3.98 .526 .417 .261 2.59 .341 -.044 2 19 LCP08C 1871 2012 142 6 0 .632 1.55 3.62 .554 .492 .292 2.55 .396 -.035 1 20 LCP09A 1842 2012 171 7 0 .617 1.67 4.64 .803 .667 .269 2.66 .490 .017 1 21 LCP09B 1866 2012 147 6 0 .667 1.53 4.64 .796 .766 .228 2.66 .457 -.039 1 22 LCP09C 1869 2012 144 6 0 .627 1.50 3.76 .747 .764 .225 2.58 .449 -.018 1 23 LCP10A 1810 2012 203 8 1 .557 .96 2.82 .528 .824 .284 2.57 .356 -.042 2 24 LCP11A 1810 2012 203 8 0 .654 1.00 2.45 .430 .797 .226 2.64 .506 -.001 2 25 LCP11B 1810 2012 203 8 0 .633 .89 2.57 .381 .780 .209 2.64 .452 -.005 1 26 LCP11C 1829 2012 184 7 0 .585 .97 2.54 .404 .776 .200 2.69 .416 -.023 1 27 LCP12B 1822 2012 191 8 0 .670 1.04 2.40 .458 .717 .278 2.52 .306 -.002 1 28 LCP12C 1860 2012 153 6 0 .569 .96 1.96 .408 .726 .279 2.55 .433 -.041 2 29 LCP14B 1810 2012 203 8 0 .510 1.45 5.04 .821 .716 .253 2.63 .311 -.029 1 30 LCP14C 1876 2012 137 5 0 .609 1.76 4.67 .803 .725 .258 2.62 .431 -.019 1 31 LCP15A 1810 2012 203 8 0 .722 .92 2.01 .378 .692 .244 2.64 .400 -.050 1 32 LCP15B 1828 2012 185 7 0 .664 1.30 3.87 .554 .754 .230 2.83 .513 -.046 1 33 LCP17A 1817 2012 196 8 0 .574 1.20 2.57 .557 .789 .244 2.60 .343 .017 1 34 LCP17B 1810 2012 203 8 0 .567 .97 2.73 .488 .798 .252 2.97 .485 -.035 1 35 LCP18A 1869 2012 144 6 0 .647 1.56 3.85 .573 .646 .234 2.66 .363 -.019 1 36 LCP19B 1810 2012 203 8 0 .580 1.17 3.32 .662 .775 .289 2.71 .419 .021 1 37 LCP20A 1810 2012 203 8 0 .637 .47 1.23 .212 .656 .314 2.59 .418 -.078 1 38 LCP22A 1740 2012 273 9 1 .485 1.25 5.77 1.096 .848 .334 2.76 .433 -.017 1 39 LCP22B 1792 2012 221 9 1 .479 1.88 5.60 1.279 .859 .303 2.70 .374 .003 2 40 LCP07C 1827 2012 186 7 0 .546 .84 2.96 .505 .784 .278 2.70 .404 -.052 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 6290 249 3 .608 1.34 5.77 .661 .771 .248 3.06 .426 -.030