Table 1. Characteristics of the research areas.
Variant Forest
District 		Forest
Sub-District 		Compartment,
sub-compartment 		Species
composition 		Age
[years] 		Stand density
index 		Stand density Breast height diameter
[cm] 		Height
[m] 		Stand
quality 		Stand
volume 		Cutting
intensity
[m3/ha]
Late thinning
TP 		Staszów Łubnice 437a Pine 10 63 1 Moderate 25 22 I 361 44
437 b Pine 8
Oak 2 		63
63 		1 Broken 25
26 		23
22 		I
II 		280
56 		48
Mature stands
R 		Staszów Sichów 391 h Pine 10 112 0.9 Broken 35 24 II 336 237
403 b Pine 10 87 0.8 Broken 29 22 II 300 198
Windbreaks in
thinning age class
WL-TP 		Dąbrowa Tarnowska Biadoliny 535 a Pine 10 66 0.8 Moderate 25 22 IA 301 301
537 a Pine 10 66 0.9 Moderate 26 23 I 350 350
538 a Pine 10 76 0.9 Moderate 23 21 I 308 308
Windbreaks in
mature stand age class
WL-R 		Przedbórz Reczków 133 a Pine 10 97 0.7 Moderate 37 25 I 254 254
133 b Pine 10 97 0.6 Moderate 35 25 I 220 220
133 c Pine 10 97 0.8 Moderate 38 25 I 312 312
133 d Pine 10 97 0.6 Moderate 37 25 I 202 202
146 a Pine 10 95 0.7 Moderate 32 23 I 243 243
146 b Pine 10 67 0.8 Moderate 26 24 I 287 287
146 c Pine 10 97 0.7 Moderate 34 24 I 254 254
146 d Pine 10 95 0.9 Moderate 33 24 I 312 312