Chronic N Green Foliage Data 1988-1999 and 2002 Samples (not collected in 2000 or 2001) Collected in late July or early August each year. Means and standard deviations of foliar samples measured as percent nitrogen, lignin and cellulose using near-infrared spectroscopy. Red Pine in Pine Stand . indicates missing data point Needle age classes were split in 1999, 2002 and 2005. Chemistry averaged in these files. year treat species n av%n sd%n av%lig sd%lig av%cel sd%cel 1988 PC RP 5 1.014 0.082 25.110 0.997 40.352 0.868 1988 PH RP 5 1.208 0.068 24.718 1.218 42.504 1.821 1988 PL RP 3 1.193 0.035 26.147 0.686 42.387 1.163 1988 PS RP 4 1.153 0.090 25.860 0.824 39.145 1.012 1989 PC RP 5 1.118 0.108 26.045 1.297 40.237 1.626 1989 PH RP 4 1.428 0.080 24.798 1.292 42.645 0.684 1989 PL RP 5 1.270 0.027 26.406 0.864 41.786 0.965 1989 PS RP 5 1.202 0.066 25.476 0.485 41.726 0.634 1990 PC RP 5 0.980 0.103 25.430 0.800 42.782 0.567 1990 PH RP 4 1.413 0.069 24.935 0.552 44.320 1.040 1990 PL RP 5 1.238 0.118 25.646 0.986 42.980 1.656 1990 PS RP 5 1.198 0.101 25.128 0.790 44.886 0.823 1991 PC RP 5 1.134 0.077 28.964 0.276 42.276 0.293 1991 PH RP 5 1.730 0.093 26.932 1.058 46.002 1.689 1991 PL RP 5 1.328 0.043 27.892 0.804 45.108 1.259 1991 PS RP 5 1.478 0.161 27.430 0.629 46.350 0.207 1992 PC RP 5 1.194 0.070 27.332 0.640 40.728 2.017 1992 PH RP 5 1.712 0.150 24.938 1.421 44.342 1.035 1992 PL RP 5 1.396 0.063 27.274 1.006 42.850 0.599 1992 PS RP 5 1.358 0.118 25.878 0.957 44.420 2.042 1993 PC RP 5 1.026 0.042 24.572 1.289 41.010 0.735 1993 PH RP 5 1.712 0.186 25.792 2.317 43.868 1.177 1993 PL RP 5 1.338 0.054 26.230 1.386 44.770 1.486 1993 PS RP 5 1.290 0.175 26.562 0.958 43.724 1.783 1994 PC RP 5 1.286 0.053 27.478 0.667 40.562 0.783 1994 PH RP 5 1.808 0.253 24.892 2.206 45.488 2.537 1994 PL RP 5 1.572 0.091 27.214 1.794 42.002 2.698 1994 PS RP 5 1.410 0.189 27.434 1.586 43.562 1.687 1995 PC RP 5 1.152 0.099 25.914 1.457 38.140 2.961 1995 PH RP 5 1.900 0.088 23.390 1.482 42.742 2.340 1995 PL RP 5 1.438 0.074 24.634 1.492 42.112 1.671 1995 PS RP 5 1.488 0.121 26.230 2.284 41.112 1.669 1996 PC RP 5 1.226 0.065 25.578 0.652 41.207 0.839 1996 PH RP 5 2.197 0.148 24.011 3.136 45.379 2.280 1996 PL RP 5 1.660 0.087 26.570 0.890 43.377 0.556 1996 PS RP 5 1.589 0.113 23.108 1.994 46.120 1.155 1997 PC RP 4 1.015 0.075 22.963 0.486 39.278 0.633 1997 PH RP 4 1.905 0.194 19.868 2.360 42.203 1.048 1997 PL RP 4 1.405 0.121 22.390 1.546 41.128 0.616 1997 PS RP 4 1.475 0.068 23.883 1.443 41.830 1.451 1998 PC RP 5 1.038 0.004 26.290 1.023 42.482 2.032 1998 PH RP 4 1.830 0.216 25.243 0.572 45.008 0.463 1998 PL RP 5 1.462 0.168 25.424 0.657 45.802 1.969 1998 PS RP 5 1.546 0.342 24.962 0.964 46.728 0.781 1999 PC RP 8 0.979 0.168 26.094 2.148 43.685 3.198 1999 PH RP 8 1.944 0.351 21.105 2.798 46.416 2.670 1999 PL RP 12 1.548 0.248 25.268 2.330 45.488 2.821 1999 PS RP 8 1.409 0.230 23.199 1.949 43.903 2.164 2002 PC RP 30 1.07 0.21 23.59 2.78 43.44 3.87 2002 PH RP 20 1.73 0.29 22.41 2.53 44.22 3.25 2002 PL RP 30 1.68 0.27 24.39 2.66 44.99 2.69 2002 PS RP 24 1.58 0.29 24.33 2.79 44.88 2.50 2005 PC RP 8 1.12 0.09 20.99 3.53 42.34 3.00 2005 PH RP 8 1.54 0.20 21.74 2.78 39.54 2.37 2005 PL RP 10 1.67 0.21 21.23 3.57 43.50 3.43 2005 PS RP 10 1.44 0.21 20.44 3.74 41.91 2.94