Mt. Collins, Great Smoky Mountains, North Carolina/Tennessee - NC016 Additional Site Information Rick Busing Purpose of Collection: Ecology - age structure. Data on ring widths from 30 older canopy trees is included. Tree ages reach ca. 400 yr in this old-growth study stand. Cores are stored in Corvallis, OR - contact investigator. Reference: Busing, R.T. and X. Wu. 1990. Size-specific mortality, growth and structure of a Great Smoky Mountains red spruce population. Can. J. For. Res. 20:206-210 COFECHA output: Chronology file name : NC016.CRN Measurement file name : NC016.RWL Date checked : 24MAR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 1650 Ending year : 1986 Principal investigators: R.T. Busing Site name : Mt. Collins Site location : N.Carolina Species information : PCRU RED SPRUCE Latitude : 3530 Longitude : -8330 Elevation : 1770M Series intercorrelation: 0.189 Avg mean sensitivity : 0.419 Avg standard deviation : 1.397 Avg autocorrelation : 0.681 Number dated series : 35 Segment length tested : 50 Number problem segments: 247 Pct problem segments : 81.25 PART 5: CORRELATION OF SERIES BY SEGMENTS: nc016.rwl 12:17 Thu 24 Mar 2005 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 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 1087 1654 1986 .01B .01B .33B .30B .19B .34B .40 .28A .25B .57 .49 .40 .16B 2 1687 1684 1986 .07B .15B-.04B .16B .11B .09B .17B .23B .19B .15B .13B .35 3 1787 1743 1986 .01B .00B .07B .05B-.06B .15B .22B .21B .08B .29A 4 2087 1703 1986 .16B .15B .06B .49 .58 .48 .47 .57 .41 .19B .43 5 2187 1789 1986 .09B-.02B-.10B .17B .48 .54 .29B .11B 6 2287 1712 1986 .07B .12B .05B .21B .26B-.07B-.17B .02B .15B .32A .11B 7 2787 1650 1986 -.02B .02B .10B .10B .17B .14B .14B .22B .11B-.03B-.11B .00B .19A 8 287 1789 1986 .23B .24B .11B .01B .09B .22B .14B .17B 9 3087 1734 1986 .21B .16B .23B .40 .29B .16B .35 .62 .27B .13B 10 3287 1754 1942 .14B .11B .24B .24A .15B .06B .08B 11 3287 1950 1986 .26A 12 387 1748 1986 .27A .23B .06B .07B .02B .25B .44 .39B .28B .21B 13 4087 1658 1986 .28B-.07B .20B .49B .32B .32A .39B .22B .17B .08B .09B .36 .49 14 4287 1786 1986 .04B .25A .12B .11B .21B .33 .36B .27B 15 487 1731 1986 .21B .13B .52 .26B .02B .26B .26B .27A .33B .10B 16 587 1754 1892 .34B .24B .48 .45 .27B 17 587 1900 1913 .25B 18 587 1920 1986 .19B .18B .32A 19 687 1783 1986 .07B .28B .38 .37 .51 .33 -.04B-.06B 20 787 1743 1986 -.06B-.05B-.09B .28B .54 .30A .19B .22B .32A .44 21 887 1735 1986 .19A .04B .02B-.05B .18B .44 .46 .23B .11B .24B 22 987 1749 1986 .22B .22B .01B .11B .10B .12B-.01B-.24B-.16B-.07B 23 H1087 1674 1986 -.18B-.19B .07B .39 .14B-.01B .03B-.07B-.31B-.16B .03B-.12B-.02B 24 H1187 1737 1986 -.04B-.15B .10B .45 .31A .07B .08B .08B .22B .38 25 H1387 1705 1940 .19B .18B .13B .33 .30A .35B .13B .05B .14B 26 H1387 1950 1986 .60 27 H1587 1651 1986 .01B .19A .37 .46 .48 .33A .17B .10B .03B .25A .33A .13B .17B 28 H387 1729 1986 .18B .05B .37 .42 .11B .02B .33A .13B .03B .16A 29 H487 1743 1986 -.04B-.07B-.17B .03B .11B-.03B-.18B-.19B .06B .01B 30 H787 1785 1986 -.07B .02B .26B .29A .06B .11B .42 .52 31 H887 1761 1986 .24B .03B .13B .07B .12B .53 .69 .62 .62 32 I12 1789 1986 .16B .26B .17B .07B .21B .07B-.05B-.04B 33 I16 1688 1901 .40 .35B .20B .03B .46 .56 .20B .29B .24B 34 I16 1910 1986 .58 .50 .58 35 I6 1751 1986 .23A .30B .39 .28B .38 .46 .18B .00B .13A Av segment correlation .02 .06 .20 .17 .14 .17 .24 .18 .16 .23 .22 .19 .24 PART 7: DESCRIPTIVE STATISTICS: nc016.rwl 12:17 Thu 24 Mar 2005 Page 7 ------------------------------------------------------------------------------------------------------------------------------------ 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 1087 1654 1986 333 13 9 .251 .62 2.01 .439 .800 .404 2.42 .281 -.012 1 2 1687 1684 1986 303 12 11 .125 .94 3.96 .708 .669 .390 2.45 .329 -.064 1 3 1787 1743 1986 244 10 10 .117 1.14 3.10 .660 .732 .338 2.35 .285 -.040 1 4 2087 1703 1986 284 11 4 .346 .74 5.11 .551 .770 .373 2.44 .325 -.057 1 5 2187 1789 1986 198 8 6 .211 .68 3.43 .503 .757 .373 2.60 .344 -.046 1 6 2287 1712 1986 275 11 11 .088 1.03 2.68 .624 .731 .420 2.50 .292 -.063 1 7 2787 1650 1986 337 13 13 .078 1.05 3.31 .654 .669 .357 2.66 .350 -.068 1 8 287 1789 1986 198 8 8 .158 1.53 6.43 1.017 .593 .540 2.58 .405 -.051 3 9 3087 1734 1986 253 10 7 .273 1.04 6.91 1.013 .765 .411 2.27 .266 -.045 1 10 3287 1754 1942 189 7 7 .156 12.74 52.14 7.138 .607 .342 2.52 .355 -.069 1 11 3287 1950 1986 37 1 1 .262 .51 .90 .191 .532 .292 2.49 .453 -.035 1 12 387 1748 1986 239 10 9 .193 1.33 4.42 .902 .689 .489 2.22 .234 -.042 2 13 4087 1658 1986 329 13 11 .242 .83 4.44 .706 .716 .427 2.54 .311 -.050 2 14 4287 1786 1986 201 8 7 .185 1.35 6.35 1.357 .817 .444 2.42 .360 -.055 1 15 487 1731 1986 256 10 9 .218 1.04 4.66 .820 .747 .500 2.37 .326 -.061 2 16 587 1754 1892 139 5 3 .357 17.01 62.71 9.598 .623 .374 2.44 .344 -.073 2 17 587 1900 1913 14 1 1 .250 10.18 14.44 2.280 .117 .202 2.72 .881 -.040 1 18 587 1920 1986 67 3 3 .249 .65 1.21 .278 .529 .398 2.28 .316 -.036 1 19 687 1783 1986 204 8 4 .231 .42 2.08 .329 .714 .511 2.64 .377 -.043 1 20 787 1743 1986 244 10 8 .191 1.38 4.22 .778 .682 .349 2.32 .264 -.055 1 21 887 1735 1986 252 10 8 .203 1.13 4.76 .783 .710 .421 2.35 .274 -.061 1 22 987 1749 1986 238 10 10 .049 1.40 16.08 1.558 .770 .376 2.45 .314 -.045 1 23 H1087 1674 1986 313 13 12 -.020 .93 3.25 .590 .566 .413 2.55 .302 -.068 1 24 H1187 1737 1986 250 10 8 .164 .75 3.50 .580 .724 .469 2.56 .306 -.046 1 25 H1387 1705 1940 236 9 8 .179 6.69 45.24 6.396 .790 .366 2.50 .255 -.069 2 26 H1387 1950 1986 37 1 0 .602 .39 .93 .217 .110 .640 2.48 .430 -.029 2 27 H1587 1651 1986 336 13 10 .213 .58 1.88 .393 .562 .536 2.50 .292 -.028 1 28 H387 1729 1986 258 10 8 .204 .79 2.49 .486 .565 .507 2.46 .366 -.060 1 29 H487 1743 1986 244 10 10 -.048 .53 7.96 .770 .346 .417 3.11 .338 -.020 1 30 H787 1785 1986 202 8 6 .196 1.13 3.26 .621 .764 .305 2.48 .337 .018 1 31 H887 1761 1986 226 9 5 .332 .89 5.83 1.007 .821 .437 2.89 .401 -.093 2 32 I12 1789 1986 198 8 8 .104 1.57 6.20 .993 .663 .377 2.51 .350 -.036 1 33 I16 1688 1901 214 9 6 .318 9.34 72.07 7.338 .612 .418 2.73 .402 -.040 1 34 I16 1910 1986 77 3 0 .587 .89 3.28 .820 .844 .479 2.67 .481 .022 1 35 I6 1751 1986 236 9 6 .270 .78 2.41 .429 .588 .437 2.56 .363 -.055 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 7661 304 247 .189 1.96 72.07 1.397 .681 .419 3.11 .325 -.049