Table 1 Main characteristics of the 58 silver fir trees. Tree age (number of annual rings at 125-cm height), trunk diameter at 130-cm height, number of inserted electrodes, moisture content (MC; mean ± SE when 2 to 3 cores were collected), and electrical resistivity (ER; mean ± SE) parameters. Mean data of each forest are given with the SD
Forest | Tree | Age (years) | Diameter (cm) | Number of electrodes | ERmean 31/07-02/08/2018 (Ωm) | Mean sapwood MC (%) | Mean heartwood MC (%) | Mean total MC (%) |
|---|---|---|---|---|---|---|---|---|
Guery 1 | 1 | 63 | 50.9 | 24 | 175.4 ± 1.5 | 123.3 ± 17.3 | 116.7 ± 3.0 | 120.7 ± 1.0 |
2 | 61 | 47.1 | 24 | 239.9 ± 1.4 | 154.0 ± 8.9 | 75.1 ± 28.9 | 98.6 ± 19.1 | |
3 | 69 | 42.0 | 24 | 376.0 ± 2.8 | 120.9 | 36.2 | 58.3 | |
4 | 69 | 47.7 | 24 | 159.1 ± 1.2 | 140.4 ± 4.9 | 95.5 ± 4.1 | 105.7 ± 0.7 | |
5 | 69 | 45.2 | 24 | 609.3 ± 5.4 | 162.4 ± 1.4 | 33.2 ± 0.6 | 69.6 ± 3.3 | |
6 | 76 | 58.9 | 24 | 146.1 ± 1.1 | 148.8 ± 4.2 | 109.1 ± 17.6 | 125.2 ± 7.1 | |
7 | 70 | 61.1 | 24 | 147.9 ± 0.9 | 144.0 | 166.1 | 159.0 | |
8 | 69 | 49.3 | 24 | 147.1 ± 1.5 | 123.0 ± 3.9 | 151.6 ± 2.4 | 146.3 ± 2.4 | |
9 | 76 | 50.0 | 24 | 163.0 ± 1.7 | 135.9 ± 28.2 | 169.0 ± 8.1 | 161.2 ± 0.4 | |
10 | 64 | 61.1 | 24 | 84.5 ± 0.8 | 139.6 | 173.5 | 163.7 | |
11 | 65 | 63.0 | 24 | 106.8 ± 1.2 | 112.8 | 152.2 | 143.6 | |
12 | 61 | 58.6 | 24 | 150.3 ± 2.8 | 174.2 | 192.7 | 188.0 | |
13 | 64 | 36.6 | 18 | 225.4 ± 3.3 | 103.6 | 68.3 | 79.3 | |
14 | 64 | 57.6 | 24 | 94.5 ± 1.2 | 159.8 | 195.0 | 187.3 | |
15 | 63 | 58.3 | 24 | 114.3 ± 1.4 | 170.4 | 183.6 | 180.7 | |
16 | 68 | 67.8 | 24 | 145.5 ± 1.8 | 113.7 | 188.2 | 168.5 | |
17 | 66 | 66.2 | 24 | 205.5 ± 1.1 | 139.7 | 102.7 | 112.5 | |
18 | 60 | 38.2 | 20 | 369.7 ± 2.7 | 112.1 ± 7.3 | 43.1 ± 4.0 | 62.9 ± 7.9 | |
19 | 56 | 42.7 | 22 | 198.2 ± 1.6 | 118.2 | 134.5 | 129.4 | |
20 | 59 | 33.7 | 18 | 259.3 ± 4.2 | 94.0 ± 1.9 | 94.7 ± 27.7 | 94.5 ± 20.2 | |
21 | 60 | 39.5 | 20 | 510.1 ± 4.5 | 97.2 | 38.6 | 56.9 | |
22 | 62 | 35.0 | 18 | 180.2 ± 2.1 | 115.0 ± 1.9 | 82.5 ± 9.8 | 93.0 ± 6.8 | |
23 | 61 | 46.8 | 24 | 72.1 ± 1.1 | 148.3 ± 13.9 | 158.0 ± 8.0 | 156.7 ± 5.3 | |
Mean | 65.0 ± 5.1 | 50.3 ± 10.3 | 22.8 ± 2.2 | 212.2 ± 134.9 | 133.7 ± 23.0 | 120.0 ± 54.6 | 124.4 ± 42.6 | |
Guery 2 | 1 | 67 | 39.5 | 20 | 289.0 ± 2.0 | 103.3 | 65.9 | 82.4 |
2 | 64 | 36.9 | 20 | 424.1 ± 2.9 | 123.2 | 36.6 | 76.0 | |
3 | 59 | 34.4 | 18 | 365.1 ± 4.9 | 130.8 | 35.5 | 75.9 | |
4 | 63 | 56.0 | 24 | 200.2 ± 1.4 | 131.9 | 137.6 | 136.0 | |
5 | 60 | 41.7 | 20 | 369.6 ± 2.8 | 118.6 | 50.7 | 62.7 | |
6 | 58 | 42.0 | 20 | 383.2 ± 2.6 | 107.4 ± 12.7 | 40.9 ± 2.5 | 71.8 ± 7.4 | |
7 | 57 | 39.5 | 20 | 232.7 ± 2.3 | 129.5 ± 7.5 | 136.5 ± 12.7 | 133.2 ± 10.3 | |
8 | 66 | 38.2 | 20 | 214.8 ± 2.3 | 140.7 ± 13.4 | 132.8 ± 0.5 | 136.0 ± 5.6 | |
9 | 73 | 65.6 | 24 | 196.5 ± 2.0 | 158.0 ± 3.4 | 148.4 ± 1.8 | 151.7 ± 0.6 | |
10 | 58 | 50.6 | 24 | 269.7 ± 1.6 | 151.4 ± 0.6 | 54.3 ± 1.3 | 94.5 ± 1.4 | |
11 | 71 | 52.8 | 24 | 233.9 ± 0.9 | 141.3 ± 9.3 | 76.3 ± 5.7 | 97.0 ± 1.9 | |
12 | 63 | 34.4 | 18 | 279.4 ± 2.7 | 104.7 ± 3.2 | 45.4 ± 4.2 | 68.5 ± 4.6 | |
13 | 61 | 45.2 | 22 | 284.2 ± 3.5 | 129.6 ± 0.2 | 70.2 ± 0.7 | 86.7 ± 2.9 | |
14 | 60 | 46.2 | 24 | 207.3 ± 2.0 | 128.1 ± 4.2 | 118.6 ± 0.6 | 121.0 ± 0.6 | |
15 | 59 | 37.6 | 20 | 262.1 ± 2.4 | 126.5 ± 2.5 | 78.8 ± 8.1 | 100.2 ± 5.4 | |
16 | 57 | 33.1 | 18 | 444.7 ± 3.6 | 117.4 ± 4.6 | 35.4 ± 3.0 | 73.7 ± 3.4 | |
17 | 60 | 39.2 | 20 | 268.5 ± 2.9 | 132.4 ± 1.6 | 100.3 ± 21.2 | 114.6 ± 12.7 | |
18 | 67 | 53.2 | 24 | 242.2 ± 1.6 | 102.6 ± 2.7 | 55.2 ± 10.8 | 70.2 ± 6.9 | |
19 | 59 | 28.0 | 16 | 369.9 ± 3.0 | 80.7 | 37.8 | 56.9 | |
20 | 62 | 46.8 | 24 | 328.6 ± 1.7 | 159.3 ± 12.1 | 100.3 ± 25.6 | 124.0 ± 17.7 | |
Mean | 62.2 ± 4.6 | 43.0 ± 9.1 | 21.0 ± 2.5 | 293.1 ± 76.3 | 125.9 ± 19.7 | 77.9 ± 39.1 | 96.7 ± 28.7 | |
Saint-Germain | 1 | 111 | 64.6 | 24 | 183.9 ± 2.0 | 119.5 | 142.9 | 131.5 |
2 | 136 | 51.2 | 24 | 365.7 ± 2.5 | 93.5 | 41.3 | 54.4 | |
3 | 151 | 85.9 | 24 | 142.3 ± 1.8 | 136.3 | 123.4 | 129.3 | |
4 | 115 | 56.7 | 24 | 386.1 ± 4.8 | 121.9 ± 25.9 | 94.1 ± 9.3 | 95.8 ± 7.6 | |
5 | 108 | 49.3 | 24 | 236.0 ± 2.6 | 97.3 | 143.0 | 130.9 | |
6 | 118 | 50.3 | 24 | 348.9 ± 2.1 | 107.1 ± 25.5 | 64.0 ± 10.2 | 76.1 ± 15.8 | |
7 | 128 | 57.9 | 24 | 196.2 ± 1.9 | 103.6 ± 6.8 | 82.3 ± 7.3 | 87.2 ± 7.5 | |
8 | 149 | 71.6 | 24 | 330.0 ± 1.9 | 100.4 ± 11.2 | 38.1 ± 4.2 | 51.2 ± 5.6 | |
9 | 127 | 35.3 | 16 | 445.8 ± 5.1 | 119.2 ± 0.0 | 55.0 ± 6.4 | 71.6 ± 7.9 | |
10 | 129 | 48.4 | 24 | 399.9 ± 3.1 | 111.3 | 31.8 | 46.3 | |
11 | 114 | 60.5 | 24 | 367.2 ± 2.4 | 120.2 | 28.4 | 56.3 | |
12 | 142 | 70.7 | 24 | 184.3 ± 1.8 | 114.5 | 127.2 | 124.1 | |
13 | 105 | 51.6 | 24 | 374.2 ± 3.5 | 108.9 ± 5.4 | 106.3 ± 6.5 | 106.7 ± 2.8 | |
14 | 107 | 51.9 | 24 | 307.4 ± 2.1 | 102.9 ± 9.5 | 132.6 ± 6.8 | 124.6 ± 3.0 | |
15 | 122 | 64.0 | 24 | 131.3 ± 1.8 | 158.0 | 168.8 | 165.9 | |
Mean | 124.1 ± 15.0 | 58.0 ± 12.2 | 23.5 ± 2.1 | 293.28 ± 103.77 | 114.3 ± 16.5 | 91.9 ± 46.7 | 96.8 ± 36.9 | |
Mean overall | 79.3 ± 28.1 | 49.8 ± 11.8 | 22.3 ± 2.5 | 261.1 ± 114.9 | 125.6 ± 21.3 | 98.2 ± 50.4 | 107.7 ± 38.7 |