Matawaumkeag, Maine - ME046 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 : ME046.CRN Measurement file name : ME046.RWL Date checked : 08JAN21 Checked by : B. Bauer Beginning year : 1679 Ending year : 2012 Principal investigators: R. Stockton Maxwell Soumaya Belmecheri Alan H. Taylor Site name : Matawaumkeag Site location : Maine Species information : TSCA EASTERN HEMLOCK Latitude : 4529 Longitude : -06816 Elevation : 85M Series intercorrelation: 0.557 Avg mean sensitivity : 0.256 Avg standard deviation : 0.539 Avg autocorrelation : 0.801 Number dated series : 12 Segment length tested : 50 Number problem segments: 5 Pct problem segments : 5.68 PART 5: CORRELATION OF SERIES BY SEGMENTS: Matawaumkeag 07:55 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 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 MAT01 1854 2012 .42 .68 .72 .61 .77 .78 2 MAT02 1811 2012 .46 .37 .30B .69 .74 .55 .61 .64 3 MAT03 1782 2012 .46 .46 .37 .37 .75 .72 .33A .62 .68 4 MAT04 1897 2012 .57 .56 .65 .66 .63 5 MAT05I 1679 2012 .45 .55 .48 .46 .60 .51 .60 .72 .64 .29A .34 .67 6 MAT06 1718 2012 .45 .55 .39 .34 .63 .53 .55 .75 .73 .64 .70 .57 7 MAT07 1876 2012 .59 .63 .59 .66 .47 8 MAT08 1861 2012 .71 .78 .78 .71 .64 .61 9 MAT09 1857 2012 .60 .74 .81 .54 .28B .42 10 MAT10 1865 2012 .48 .54 .62 .64 .65 .61 11 MAT11 1863 2012 .15B .33 .44 .55 .71 .78 12 MAT12 1848 2012 .36 .37 .51 .63 .73 .72 .70 Av segment correlation .45 .55 .43 .42 .54 .42 .45 .64 .67 .57 .61 .63 PART 7: DESCRIPTIVE STATISTICS: Matawaumkeag 07:55 Fri 08 Jan 2021 Page 9 ----------------------------------------------------------------------------------------------------------------------------------- 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 MAT01 1854 2012 159 6 0 .654 1.12 2.79 .578 .688 .314 2.76 .535 -.011 1 2 MAT02 1811 2012 202 8 1 .550 1.13 4.61 .864 .812 .293 2.81 .476 -.043 1 3 MAT03 1782 2012 231 9 1 .506 .96 3.32 .613 .882 .260 2.72 .374 -.051 1 4 MAT04 1897 2012 116 5 0 .605 .99 2.73 .388 .682 .227 2.61 .491 .005 1 5 MAT05I 1679 2012 334 12 1 .480 .53 1.66 .307 .842 .255 2.56 .331 -.044 1 6 MAT06 1718 2012 295 12 0 .545 .64 2.45 .371 .844 .267 2.59 .368 -.048 2 7 MAT07 1876 2012 137 5 0 .538 1.23 2.52 .550 .664 .313 2.47 .363 -.022 2 8 MAT08 1861 2012 152 6 0 .695 1.58 3.74 .631 .806 .197 2.60 .357 -.045 1 9 MAT09 1857 2012 156 6 1 .584 1.50 4.40 .682 .805 .227 2.87 .397 .015 1 10 MAT10 1865 2012 148 6 0 .562 .88 2.74 .467 .777 .262 2.54 .403 -.062 1 11 MAT11 1863 2012 150 6 1 .486 1.37 3.56 .782 .885 .213 2.80 .565 -.017 1 12 MAT12 1848 2012 165 7 0 .594 1.14 3.43 .495 .753 .215 2.61 .404 .024 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2245 88 5 .557 1.01 4.61 .539 .801 .256 2.87 .410 -.029