Table 1 Quantitative description of the study areas according to the field inventory data
n | N | Species | Milicz | Suprasl | Katrynka | Piensk | Herby | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Plots 900 | Stands 56 | Plots 498 | Stands 60 | Plots 499 | Stands 60 | Plots 502 | Stands 58 | Plots 906 | Stands 71 | ||
Species share (%) | 1 | Pine 63 | Pine 75 | Pine 46 | Pine 68 | Pine 69 | Pine 86 | Pine 70 | Pine 81 | Pine 64 | Pine 74 |
2 | Oak 8 | Oak 13 | Mix 11 | Mix 7 | Pine-Spr 15 | Pine-Spr 11 | Mix 6 | Spruce 3 | Pine-Oak 4 | Pine-Oak 10 | |
3 | Beech 5 | Beech 4 | Pine-Spr 9 | Pine-Mix 13 | Mix 4 | Mix 3 | Pine-Mix 5 | Beech 3 | Pine-Mix 8 | Pine-Mix 10 | |
4 | Mix 5 | Oak-Mix 4 | Spruce 8 | Spruce 5 | Spruce 4 | – | Birch 4 | Birch 7 | Mixed 8 | Birch 3 | |
5 | Other 19 | Other 4 | Other 26 | Other 7 | Other 8 | – | Other 15 | Other 6 | Other 16 | Other 3 | |
Age xÌ… (SD) (year) | 1 | 65 (26) | 77 (30) | 78 (26) | 79 (18) | 74 (24) | 75 (20) | 60 (21) | 66 (16) | 76 (25) | 82 (19) |
2 | 115 (35) | 113 (27) | 55 (13) | 76 (25) | 84 (22) | 78 (32) | 48 (10) | 51 (13) | 64 (12) | 88 (15) | |
3 | 78 (34) | 143 (18) | 85 (30) | 91 (34) | 53 (14) | 56 (13) | 55 (20) | 70 (0) | 72 (19) | 75 (18) | |
4 | 52 (19) | 127 (35) | 47 (16) | 45 (1) | 57 (12) | – | 50 (17) | 62 (6) | 55 (12) | 69 (0) | |
5 | 65 (31) | 74 (9) | 69 (27) | 58 (35) | 59 (20) | – | 59 (23) | 70 (5) | 59 (19) | 61 (18) | |
GSV x̅ (SD) (m3∙ha− 1) | 1 | 368 (137) | 344 (104) | 469 (143) | 399 (87) | 420 (141) | 350 (105) | 319 (99) | 280 (60) | 343 (118) | 266 (75) |
2 | 488 (244) | 388 (64) | 337 (125) | 293 (82) | 447 (165) | 352 (57) | 256 (99) | 406 (103) | 432 (109) | 287 (71) | |
3 | 413 (249) | 272 (149) | 420 (141) | 403 (136) | 297 (136) | 346 (8) | 290 (80) | 171 (18) | 373 (101) | 299 (81) | |
4 | 382 (150) | 420 (38) | 290 (130) | 277 (58) | 372 (120) | – | 165 (68) | 234 (20) | 321 (118) | 194 (10) | |
5 | 359 (164) | 344 (127) | 359 (151) | 277 (95) | 286 (139) | – | 317 (154) | 245 (65) | 290 (129) | 283 (26) | |