Sample plot number | Height to dead branches (m) | Stem section with dead branches (m) | Crown length (m) |
---|---|---|---|
1 | 4.9 ± 0.10a,b | 2.6 ± 0.09a | 6.8 ± 0.14a |
2 | 5.0 ± 0.09a,b | 2.5 ± 0.06a | 6.5 ± 0.11a |
3 | 5.2 ± 0.15a | 2.6 ± 0.08a | 6.4 ± 0.16a |
4 | 5.5 ± 0.17a,c | 2.5 ± 0.11a | 6.2 ± 0.18a |
F | 2.98 | 0.59 | 2.39 |
p | 0.04 | 0.62 | 0.07 |
Composition | Age (years) | Average | Stand basal area (m2·ha−1) | Stand density (stems·ha−1) | Growing stock per 1 ha (m3·ha−1) | Health condition index | Stem quality category | Height (m) | ||
---|---|---|---|---|---|---|---|---|---|---|
height (m) | diameter (cm) | to dead knot | to living branch | |||||||
Sample plot 1, stand in the corridor before felling | ||||||||||
100% Eo | 32 | 13.5 | 14.1 | 7.08 | 454 | 51.4 | 2.5 | 2.0 | 4.6 | 7.0 |
Stand in the corridor after felling | ||||||||||
100% Eo | 32 | 14.3 | 16.9 | 6.35 | 285 | 47.2 | 1.4 | 1.7 | 4.9 | 7.5 |
Unfelled strip in sample plot 1 after felling | ||||||||||
56% Fm | 30–40 | 14.2 | 19.6 | 4.9 | 162 | 33.9 | 1.4 | – | – | – |
29% Sll | 17.4 | 29.5 | 2.1 | 31 | 17.6 | 1.1 | – | – | – | |
15% others | 14.3 | 19.7 | 1.4 | 46 | 9.5 | 1.2 | – | – | – | |
Total in unfelled strip | – | – | 8.4 | 239 | 61.0 | – | – | – | – | |
Total unfelled strip + corridor 44% Eo, 31% Fm, 16% Sll, 9% others | – | – | 14.75 | 524 | 108.2 | – | – | – | – | |
Sample plot 2, stand in the corridor before felling | ||||||||||
100% Eo | 32 | 13.4 | 15.1 | 11.89 | 665 | 84.5 | 2.0 | 1.8 | 4.5 | 7.0 |
Stand in the corridor after felling | ||||||||||
100% Eo | 32 | 14.0 | 17.1 | 10.92 | 470 | 79.0 | 1.3 | 1.6 | 5.0 | 7.5 |
Unfelled strip in sample plot 2 after felling | ||||||||||
52% Fm | 30–40 | 12.8 | 14.5 | 3.2 | 193 | 19.8 | 1.4 | – | – | – |
14% Cp | 13.2 | 23.8 | 0.8 | 19 | 5.3 | 1.5 | – | – | – | |
13% Nm | 14.2 | 21.0 | 0.7 | 21 | 4.9 | 1.3 | – | – | – | |
21% others | 12.9 | 22.0 | 1.6 | 40 | 8.1 | 1.2 | – | – | – | |
Total in unfelled strip | – | – | 6.3 | 273 | 38.1 | – | – | – | – | |
Total 67% Eo, 17% Fm, 5% Cp, 4% Nm, 7% others | – | – | 17.22 | 743 | 117.1 | – | – | – | – |
Composition | Age (years) | Average | Stand basal area (m2·ha−1) | Stand density (stems·ha−1) | Growing stock per 1 ha (m3·ha−1) | Health condition index | Stem quality category | Height (m) | ||
---|---|---|---|---|---|---|---|---|---|---|
height (m) | diameter (cm) | to dead knot | to living branch | |||||||
Sample plot 3, stand in the corridor before felling | ||||||||||
100% Eo | 32 | 13.5 | 14.6 | 8.93 | 535 | 64.6 | 2.0 | 1.8 | 4.8 | 7.3 |
Stand in the corridor after felling | ||||||||||
100% Eo | 32 | 14.2 | 17.0 | 8.14 | 360 | 60.1 | 1.2 | 1.5 | 5.2 | 7.8 |
Unfelled strip in sample plot 3 after felling | ||||||||||
51% Fm | 30–40 | 13.6 | 17.5 | 4.6 | 190 | 29.8 | 1.3 | – | – | – |
20% As | 17.2 | 22.2 | 1.6 | 40 | 11.8 | 1.1 | – | – | – | |
16% Sll | 13.9 | 14.5 | 1.3 | 80 | 9.2 | 1.1 | – | – | – | |
13% others | 15.0 | 22.6 | 1.1 | 30 | 7.4 | 1.2 | – | – | – | |
Total in unfelled strip | – | – | 8.6 | 340 | 58.2 | – | – | – | – | |
Total 51% Eo, 25% Fm, 10% As, 8% Sll, 6% others | – | – | 16.74 | 700 | 118.3 | – | – | – | – | |
Sample plot 4, stand in the corridor before felling | ||||||||||
100% Eo | 32 | 13.8 | 15.5 | 12.7 | 672 | 91.6 | 2.1 | 2.0 | 5.2 | 7.4 |
Stand in the corridor after felling | ||||||||||
100% Eo | 32 | 14.2 | 17.4 | 11.7 | 482 | 85.8 | 1.4 | 1.8 | 5.5 | 8.0 |
Unfelled strip in sample plot 4 after felling | ||||||||||
40% Fm | 30–40 | 12.8 | 15.4 | 2.6 | 143 | 16.5 | 1.4 | – | – | – |
33% Sll | 16.2 | 20.3 | 1.7 | 53 | 13.5 | 1.1 | – | – | – | |
27% Nm | 14.3 | 18.6 | 1.6 | 58 | 11.2 | 1.3 | – | – | – | |
Total in unfelled strip | – | – | 5.9 | 254 | 41.2 | – | – | – | – | |
Total unfelled strip + corridor 67% Eo, 13% Fm, 11% Sll, 9% Nm | – | – | 17.6 | 736 | 127.0 | – | – | – | – |
Sample plot number | Before tending felling, 1995 | After tending felling, 1996 | F | p | Before tending felling, 2000 | After tending felling, 2003 | F | p |
---|---|---|---|---|---|---|---|---|
2 | 2.1 ± 0.18a | 3.0 ± 0.06b | 20.63 | <0.01 | 2.2 ± 0.17a | 3.1 ± 0.10b | 5.24 | 0.03 |
4 | 2.5 ± 0.19a | 3.1 ± 0.14b | 8.20 | 0.04 | 2.1 ± 0.11a | 3.4 ± 0.16b | 11.75 | 0.02 |
Year | Sample plot number | F | p | |
---|---|---|---|---|
2 | 4 | |||
1991 | 3.3 ± 0.15a | 3.5 ± 0.21a | 1.59 | 0.23 |
1992 | 2.8 ± 0.19a | 3.2 ± 0.20a | 1.40 | 0.25 |
1993 | 2.8 ± 0.12a | 3.4 ± 0.18b | 8.33 | <0.01 |
1994 | 2.4 ± 0.19a | 3.0 ± 0.22b | 4.96 | 0.03 |
1995 | 2.1 ± 0.18a | 2.5 ± 0.19a | 2.86 | 0.10 |
1996 | 3.0 ± 0.06a | 3.1 ± 0.14a | 0.03 | 0.86 |
1997 | 3.1 ± 0.12a | 3.3 ± 0.11a | 0.46 | 0.50 |
1998 | 2.6 ± 0.13a | 2.7 ± 0.13a | 0.005 | 0.94 |
1999 | 2.3 ± 0.11a | 2.1 ± 0.10a | 0.62 | 0.44 |
2000 | 2.2 ± 0.17a | 2.1 ± 0.11a | 0.07 | 0.79 |
2001 | 2.4 ± 0.15a | 2.2 ± 0.13a | 0.62 | 0.44 |
2002 | 2.4 ± 0.17a | 2.5 ± 0.11a | 0.01 | 0.93 |
2003 | 3.1 ± 0.10a | 3.4 ± 0.16a | 1.16 | 0.29 |
2004 | 3.0 ± 0.13a | 3.2 ± 0.15a | 0.16 | 0.70 |
2005 | 3.0 ± 0.13a | 3.4 ± 0.19a | 1.19 | 0.29 |
2006 | 2.6 ± 0.09a | 3.1 ± 0.14a | 1.84 | 0.19 |
2007 | 2.7 ± 0.09a | 3.3 ± 0.14a | 3.88 | 0.06 |
2008 | 2.1 ± 0.17a | 2.2 ± 0.15a | 0.001 | 0.99 |
2009 | 1.8 ± 0.14a | 2.0 ± 0.15a | 0.23 | 0.63 |
2010 | 1.9 ± 0.15a | 2.3 ± 0.16a | 0.26 | 0.62 |
2011 | 1.9 ± 0.15a | 2.1 ± 0.16a | 0.08 | 0.78 |
2012 | 1.7 ± 0.11a | 2.0 ± 0.14a | 0.20 | 0.66 |
2013 | 2.4 ± 0.11a | 2.6 ± 0.16a | 0.005 | 0.95 |
2014 | 2.0 ± 0.09a | 2.2 ± 0.15a | 0.14 | 0.71 |
2015 | 1.4 ± 0.10a | 1.6 ± 0.18a | 0.02 | 0.88 |
2016 | 1.6 ± 0.08a | 1.5 ± 0.16a | 0.89 | 0.36 |
2017 | 1.8 ± 0.10a | 1.5 ± 0.17a | 2.38 | 0.14 |
2018 | 2.1 ± 0.14a | 1.7 ± 0.20a | 3.44 | 0.08 |
2019 | 1.2 ± 0.09a | 0.9 ± 0.13b | 4.48 | 0.04 |
Sample plot number | Number of corridors | Corridor width (m) | Corridor direction | Width of unfelled strips (m) | Number of planted oak rows in the corridors |
---|---|---|---|---|---|
1 | 3 | 6 | latitudinal | 3 | 1 |
2 | 3 | 12 | latitudinal | 6 | 3 |
3 | 2 | 9 | latitudinal | 6 | 2 |
4 | 2 | 12 | longitudinal | 6 | 3 |
Health condition index range | Stand damage degree | Health status of the stand | Average health condition category |
---|---|---|---|
1.00–1.50 | none | healthy trees | 1 |
1.51–2.50 | light | weakened trees | 2 |
2.51–3.50 | moderate | severely weakened trees | 3 |
3.51–4.50 | severe | dying trees | 4 |
4.51–5.00 | very severe | dead trees | 5 |
5.51–6.00 | very severe | standing dead trees died over recent years | 6 |