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Klasyfikacja lasów państwowego gospodarstwa leśnego według rodzajów funkcji wiodących

100%

Marszalek T.

Sylwan

|

1993

|

tom 137

|

nr 03

37-44

2

Wielkość i wartość zasobów surowca drzewnego robinii akacjowej i daglezji zielonej w Lasach Państwowych

100%

Jaminska J., Bronisz K., Bijak S.

Sylwan

|

2018

|

tom 162

|

nr 09

The objective of the study was to determine the quantitative and valuable potential of wood resources of black locust (Robinia pseudoacacia) and Douglas fir (Pseudotsuga menziesii) in individual regional directorates of the State Forests (RDSFs) in Poland. We used data from the State Forests Information System database (values for the end of 2014) to determine the amount of the resources of the analysed species in forests under the State Forests management. The monetary value of black locust and Douglas fir resources was determined using both the indicator method and on the basis of sales prices of individual assortments. The occurrence, and hence the resources of black locust and Douglas fir in our country are characterized by considerable spatial diversity. Generally speaking, studied tree species are of minor importance in Polish forests as far as area and volume are concerned, but both species can the most often and in the large abundance be found in the western and northern Poland. The average sale price of wood of the tested species varied a lot in individual regional directorates of the State Forests (fig.). In the case of black locust the average sale price ranged from 99 PLN/m³ in RDSF Szczecinek to 151 PLN/m³ in RDSF Krakow, while for Douglas fir the values from 59 PLN/m³ in RDSF Łódź to 277 PLN/m³ in RDSF Katowice were obtained. The total value of black locust timber resources was assessed by the sale price method at PLN 262.4 million, and by the indicator method at PLN 186.4 million. In the case of Douglas fir timber, these values were much higher and amounted to PLN 375.0 and 309.2 million, respectively. The highest value of the studied species stands was noted in the RDSF with the largest amount of their resources.

3

Pieniężna ocena dóbr powstających dzięki socjalnym funkcjom lasów grupy pierwszej państwowego gospodarstwa leśnego

100%

Marszalek T.

Sylwan

|

1993

|

tom 137

|

nr 08

5-13

4

Wartość zasobów drzewnych wybranych drzewostanów bukowych i jodłowych w Beskidach

100%

Zygmunt R., Banas J., Bujoczek L., Zieba S.

Sylwan

|

2018

|

tom 162

|

nr 09

The paper presents assessment of the value of selected beech and fir stands by the classic method and using the value tariff in two ways. The aim of the work was to verify the suitability of the local tariff method based on the SILP forest database for the valuation of timber resources in forests. The measurements were carried out in the Beskidy Mountains (southern Poland). The reference sales value of the beech and fir stands with the growing stock from 61 to 643 m³/ha ranged from 6,307 to 102,438 PLN/ha. The average value of stands is about 45,000 PLN/ha and the standard deviation around 20,000 PLN/ha, with an average volume of 340 m³/ha and standard deviation of 140 m³/ha. The monetary value of the uneven−aged fir and beech stands calculated by the mean of the local tariff of value (method 1) was different from the values calculated either basing on the traditional method or on the method 2. However, the difference was on average 11% when it came to the previous, and about 2.2% when for the latter method. Almost 50% of the stands were valuated using the second method with an error of ±2.5%, the maximum extreme negative error being –14% and the maximum extreme positive error being +11%. As soon as the calculation process were automatised, the present method to obtain the local monetary value tariff of forest resources could become a practical tool in the process of forest resources valuation for the needs of the State Forests and as such it could replace the so−far used stand value tables.

5

Taryfa wartości pieniężnej zasobów drzewnych na pniu utworzona z wykorzystaniem baz danych o lasach

100%

Zygmunt R., Banas J., Bujoczek L., Zieba S.

Sylwan

|

2017

|

tom 161

|

nr 02

This paper presents the method worked out to assess the value of growing stock in an exemplary forest district basing on the stand−level data available from the forest inventory databases. The method was designed for European beech and silver fir growing in the Polish part of the Carpathian Mountains. Sample data includes 28 stands, where quality classes of wood were assessed for 18,000 trees altogether. Beech and fir timber prices from the transactions made in 2010−2012 and harvesting/processing costs were also included in the analysis. The proposed tariff consists of calculating the growing stock value basing on taxation features of the stands, which are described in the forest management plan as well as on local wood stock prices. The local tariffs of wood stock prices for beech and fir were calculated as a set of functions, where the diameter at breast height (DBH) is the descriptive variable. The local tariff for beech with DBH in the range of 7−22.5 cm equals approximately 89.6 PLN/m³, while for DBH in the range of 22.5−50.9 cm is described by the equation: y=–0.011·DBH²+1.9539·DBH+51,305. The local tariff for fir wood with DBH in the range of 7−18 cm amounts approximately to 99 PLN/m³, while for DBH in the range of 18−54.2 cm is described by the equation: y=0.0027·DBH³–0.3555·DBH²+15.992·DBH–80.186. The initial verification of the valuation results obtained by means of this method turned out to be positive. As the next stage, the presented method should be verified for the same stands with use of several methods, e.g. quality classes of wood and calculating the value of the cut wood and calculating valuation errors.

6

Wartosc funkcji rekreacyjnej lasow w Polsce

100%

Bartczak A.

Ekonomia i Środowisko

|

2006

|

nr 2

23-41

7

Wartosc dobr lasow grupy pierwszej w RDLP Krakow. Las - zyski czy straty ?

100%

Marszalek T.

Las Polski

|

1995

|

nr 03

8-9

8

Wplyw dolistnego dokarmiania tytoniu na plony i jakosc lisci

80%

Szewczuk C.

Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura

|

2009

|

tom 64

|

nr 1

46-51

9

Metody pienieznej oceny socjalnych funkcji lasu

80%

Marszalek T.

Las Polski

|

1992

|

nr 15-16

8-9

10

Rzeczoznawca radzi

80%

Zarzycka M.

Pilski Informator Rolniczy

|

1994

|

nr 05

15

Ograniczanie wyników

5 Sylwan

2 Las Polski

1 Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura

1 Ekonomia i Środowisko

1 Pilski Informator Rolniczy

4 Marszalek T.

2 Banas J.

2 Bujoczek L.

2 Zieba S.

2 Zygmunt R.

1 Bartczak A.

1 Bijak S.

1 Bronisz K.

1 Jaminska J.

1 Szewczuk C.

1 Zarzycka M.

2 2018

1 2017

1 2009

1 2006

1 1995

1 1994

2 1993

1 1992

Klasyfikacja lasów państwowego gospodarstwa leśnego według rodzajów funkcji wiodących

Wielkość i wartość zasobów surowca drzewnego robinii akacjowej i daglezji zielonej w Lasach Państwowych

Pieniężna ocena dóbr powstających dzięki socjalnym funkcjom lasów grupy pierwszej państwowego gospodarstwa leśnego

Wartość zasobów drzewnych wybranych drzewostanów bukowych i jodłowych w Beskidach

Taryfa wartości pieniężnej zasobów drzewnych na pniu utworzona z wykorzystaniem baz danych o lasach

Wartosc funkcji rekreacyjnej lasow w Polsce

Wartosc dobr lasow grupy pierwszej w RDLP Krakow. Las - zyski czy straty ?

Wplyw dolistnego dokarmiania tytoniu na plony i jakosc lisci

Metody pienieznej oceny socjalnych funkcji lasu

Rzeczoznawca radzi