Commercial thinning in individual revisions and total for the distinguished species in the ‘Piaseczno’ dump
| Species | Revision 3rd | Revision 4th | Revision 5th | Total commercial thinning | ||||
|---|---|---|---|---|---|---|---|---|
| commercial thinning | ||||||||
| m3 | % | m3 | % | m3 | % | m3 | % | |
| Robinia pseudoacacia | 29.90 | 11.13 | 215.55 | 7.56 | 485.04 | 22.50 | 730.49 | 13.88 |
| Betula pendula | 7.02 | 2.61 | 472.03 | 16.56 | 436.28 | 20.24 | 915.33 | 17.39 |
| Fagus sylvatica | 0.00 | 0.00 | 0.84 | 0.03 | 0.00 | 0.00 | 0.84 | 0.02 |
| Quercus spp. | 9.75 | 3.63 | 101.10 | 3.55 | 156.39 | 7.26 | 267.24 | 5.08 |
| Fraxinus excelsior | 10.40 | 3.87 | 14.33 | 0.50 | 51.44 | 2.39 | 76.17 | 1.45 |
| Larix decidua | 19.15 | 7.13 | 121.23 | 4.25 | 107.78 | 5.00 | 248.16 | 4.72 |
| Alnus spp. | 2.60 | 0.97 | 3.86 | 0.14 | 31.37 | 1.46 | 37.83 | 0.72 |
| Populus tremula | 90.42 | 33.65 | 140.69 | 4.94 | 28.02 | 1.30 | 259.13 | 4.92 |
| Pinus sylvestris | 60.04 | 22.35 | 655.50 | 23.00 | 250.86 | 11.64 | 966.40 | 18.37 |
| Populus spp. | 0.65 | 0.24 | 1080.95 | 37.93 | 361.83 | 16.79 | 1443.43 | 27.43 |
| Other coniferous | 5.00 | 1.86 | 4.00 | 0.14 | 12.25 | 0.57 | 21.25 | 0.40 |
| Other deciduous | 33.75 | 12.56 | 24.49 | 0.86 | 157.78 | 7.32 | 216.02 | 4.11 |
| Carpinus spp. | n.d | n.d | 0.84 | 0.03 | 1.68 | 0.08 | 2.52 | 0.05 |
| Acer pseudoplatanus | n.d | n.d | 0.00 | 0.00 | 44.88 | 2.08 | 44.88 | 0.85 |
| Ulmus spp. | n.d | n.d | 0.00 | 0.00 | 1.40 | 0.06 | 1.40 | 0.03 |
| Salix spp. | n.d | n.d | 12.34 | 0.43 | 18.63 | 0.86 | 30.97 | 0.59 |
| TOTAL | 268.68 | 2847.75 | 2145.63 | 5262.06 | ||||
Merchantable timber of growing stock for species occurring on the ‘Piaseczno’ dump (according to FMP 2012–2021)
| Species | Total volume [m3] (growing stock) |
|---|---|
| Robinia pseudoacacia | 6430 |
| Pinus sylvestris | 3885 |
| Alnus sp. | 2555 |
| Quercus sp. | 2317 |
| Betula pendula | 1381 |
| Larix decidua | 1120 |
| Populus tremula | 1005 |
| Populus sp. | 420 |
| Acer pseudoplatanus | 145 |
| Fagus sylvatica | 10 |
| Others | 486 |
Changes in species composition in the ‘Piaseczno’ dump
| Species | FMP 1992–2001 | FMP 2002–2011 | FMP 2012–2021 | Changes in the percentage share of species in 1992–2021 |
|---|---|---|---|---|
| Quercus spp. | 24% | 26% | 12% | −12% |
| Robinia pseudoacacia L. | 19% | 14% | 32% | 13% |
| Pinus sylvestris L. | 18% | 21% | 20% | 2% |
| Betula pendula Roth | 11% | 6% | 7% | −4% |
| Populus spp. | 11% | 9% | 5% | −6% |
| Alnus glutinosa L. Gaertn | 9% | 9% | 13% | 4% |
| Larix decidua Mill | n.d. | 6% | 6% | n.d |
| Other | 7% | 9% | 6% | −1% |
Costs and profits [PLN] of black locust harvesting in the Staszów Forest Inspectorate during 2006–2016 according to the Wood Price List of the Staszów Forest District
| Years | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thinning in wood class | s2 | 33.80 | 5.82 | 0.00 | 28.86 | 0.00 | 65.52 | 253.89 | 0.00 | 0.00 | 0.00 | 0.00 |
| s2k | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 186.25 | 0.00 | 0.00 | 22.51 | |
| s2d | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 17.70 | 0.00 | 0.00 | 0.00 | |
| s4 | 0.00 | 0.00 | 0.00 | 0.00 | 3.25 | 0.00 | 6.19 | 15.55 | 10.92 | 0.00 | 43.36 | |
| wd | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.70 | |
| Thinning in individual years [m3] | 33.80 | 5.82 | 0.00 | 28.86 | 3.25 | 65.52 | 260.08 | 219.50 | 10.92 | 0.00 | 66.57 | |
| The price of thinning and extraction [m3]a | 44.00 | 39.50 | 55.00 | 45.00 | 43.50 | 45.00 | 52.00 | 69.40 | 47.00 | 47.00 | 47.00 | |
| Average selling price of wood [PLN]b | 133.70 | 147.28 | 152.53 | 136.54 | 154.65 | 186.68 | 186.42 | 171.05 | 188.85 | 191.77 | 191.01 | |
| Costs of commercial thinning and extraction in individual years [PLN] | 1487.20 | 229.89 | 0.00 | 1298.70 | 141.38 | 2948.40 | 13 524.16 | 15 233.30 | 513.24 | 0.00 | 3128.79 | |
| Income from the sale of wood in particular years [PLN] | 4519.06 | 857.17 | 0.00 | 3940.54 | 502.61 | 12 231.27 | 48 484.11 | 37 545.48 | 2062.24 | 0.00 | 12 715.54 | |
| Profit [PLN] | 3031.86 | 627.28 | 0.00 | 2641.84 | 361.24 | 9282.87 | 34 959.95 | 22 312.18 | 1549.00 | 0.00 | 9586.75 | |
| Total cost of commercial thinning and extraction during 2006–2016 [PLN]c | 38505.06 | |||||||||||
| Total profit of wood selling during 2006–2016 [PLN]c | 122858.03 | |||||||||||
| Total profit from wood selling during 2006–2016c | 84352.97 | |||||||||||