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    Wyświetlanie 1-6 z 6
    Tytuł:
    Predykcja cen surowca drzewnego na podstawie siedmioletniego modelu tendencji rozwojowej
    Forecasting prices of timber raw material based on a seven-year development trend model
    Autorzy:
    Górna, A.
    Adamowicz, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/979018.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    rynek drzewny
    surowce drzewne
    ceny
    prognozy cen
    modele liniowe
    leśnictwo
    wood market
    prediction
    price of wood
    forest marketing
    linear model
    forestry economics
    Opis:
    The article analyzes the possibility of using a seven−year development trend model to forecast the average price of wood sales (CGUS). Price models and forecasts were made on the basis of three different time series covering 7−year periods. The forecast of timber prices in individual years was developed on the basis of extrapolation going beyond the set of information adopted for research used to build the development trend model. We found that the size of the indicators of determination of the analyzed functions ranged from 0.5 to 0.6, and the convergence rates from 0.5 to 0.4. This means that the linear functions were characterized by poor adjustment to real prices. Despite this, the timber price forecasts differed from the empirical prices from PLN 1.81 to 13.91. In relative categories, the forecast error was in the range from 0.92 to 7.28%. Therefore, in our opinion, the research process presented can be a reference point as a comparative element to verify forecast results for other (non−linear) price forecasting models. The process of modeling timber raw material prices should be extended to other predictors related to the forest marketing chain. The predicted results from these models cannot be worse than those obtained by forecasting using linear functions
    Źródło:
    Sylwan; 2020, 164, 03; 206-215
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Uwarunkowania rynku drzewnego w Lasach Państwowych w latach 1918-2008
    Determinants of the wood market of the State Forests in the years 1918-2008
    Autorzy:
    Łuczak, M.
    Paschalis-Jakubowicz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/991435.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Panstwowe Gospodarstwo Lesne Lasy Panstwowe
    gospodarka lesna
    uzytkowanie lasu
    rynek drzewny
    lata 1918-2008
    determinants
    wood market
    state forests history
    Opis:
    Paper evaluates the conditions that affect the functioning of the timber market and its role in the development of forestry and timber industry during the ninety−year−history of the State Forests. Four periods were distinguished, which, according to the authors, correspond to the key stages of development of the Polish State: the interwar period (1918−1938), the period of the Second World War (1939−1945), the post−war period (1946−1989) and the period after the change of the political system in Poland (1990−2008). Data concerning both forestry and the timber industry in these periods were collected, processed and compared to the general conditions of functioning of the Polish state.
    Źródło:
    Sylwan; 2013, 157, 07; 506-515
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Obrót surowcem drzewnym najwyższych klas jakości w Polsce
    Sales of the timber in the highest quality class in Poland
    Autorzy:
    Paschalis-Jakubowicz, P.
    Kulik, P.
    Lachowicz, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/973511.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    surowce drzewne
    baza surowcowa
    drewno okleinowe
    drewno wielkowymiarowe
    pozyskiwanie drewna
    rynek drzewny
    klasy jakości
    drewno łuszczarskie
    słupy teletechniczne
    sprzedaż
    wood veneer
    plywood
    harvest
    sale of wood
    timber market
    Opis:
    The paper analyses the amount of cut, the assortment and species structure of the current domestic market for timber of the highest quality classes (wood veneer, plywood, telecommunication poles) in Poland in years 2005−2009. Oak and beech are the main source of material for the production of veneer in Poland. Sales of oak veneer in 2005−2009 amounted to 17,502.9 m3 (35.8% of the total sales of assortment WA1). Sales of beech veneer in 2005−2009 amounted to 11,233.5 m3 (23.0% of total sales). Among the plywood assortments harvested in Poland in 2005−2009, birch was harvested and sold in the largest quantities – 503,870.0 m3 (39.1% of total harvest) and 590,822.4 m3 (43.8% of total sales). Of all the regional directorates of the State Forests, the Krosno RDSF showed in 2005−2009 the largest harvest of WA1 assortments – 9734.0 m3 (21.4% of the total harvest), and sale – 9611.0 m3 (19.7% of total sales). Because of the large beech and sycamore timber resources, forests in the Krosno RDSF are a main current and potential source of veneer assortments. Because of the large amounts of harvested and sold oak, beech, pine, birch and alder veneer the Białystok, Olsztyn, Szczecinek and Szczecin RDSFs play the dominant role on the Polish timber market. The leading role in terms of plywood sales in the period under review was taken by RDSFs Olsztyn – 24.9%, Białystok – 26.2%, Szczecinek – 13.1% and Szczecin – 11.6%. These RDSFs taken together supplied to the market 75.8% of plywood, being the main material base for the plywood industry. The dominant role of these RDSFs derives from the fact that forests under their administration are rich in birch, alder and pine. Spruce as a plywood material is insufficiently used by the plywood industry (harvest – 33,269.9 m3, sale – 579.5 m3).
    Źródło:
    Sylwan; 2015, 159, 02; 91-102
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Submisje jako kierunek dystrybucji cennego surowca drzewnego
    Submissions as a trend in the distribution of valuable wood material
    Autorzy:
    Malinowski, Z.
    Lis, W.
    Wieruszewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/989513.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Panstwowe Gospodarstwo Lesne Lasy Panstwowe
    RDLP Katowice
    drewno
    sprzedaz
    drewno cenne
    submisje
    rynek drzewny
    round wood
    valuable species
    sales
    recipient market
    submissions
    Opis:
    The sales of round wood is determined by the forms of distribution, which are specific to the Polish market. The State Forests, National Forest Holding is the enterpise that has the main potential (forest area – 75% and sales – 95%) of wood material at its disposal. In pursuit of rational use of the quality of acquired round wood and in order to increase its price, the State Forests decided to sell high quality assortments in the systems of auction and submission. It is economically important both for the State Forests and for Poland, because the income from the sales of wood makes about 88% of total income of this strategically important institution in the national economy. Systematic changes in the structure of recipients confirm the right trend and distribution of round wood.
    Źródło:
    Sylwan; 2016, 160, 07; 531-538
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rynek drzewnego surowca brzozowego w Polsce w latach 2008-2012
    Silver birch timber market in Poland in 2008-2012
    Autorzy:
    Lachowicz, H.
    Wysocka-Fijorek, E.
    Paschalis-Jakubowicz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/989465.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewa lesne
    brzoza brodawkowata
    Betula pendula
    surowce drzewne
    drewno brzozowe
    struktura sortymentowa
    podaz
    ceny
    rynek drzewny
    analiza rynku
    lata 2008-2012
    Panstwowe Gospodarstwo Lesne Lasy Panstwowe
    silver birch
    timber market
    sales of timber
    wood prices
    Opis:
    The article presents an analysis of the birch market in Poland in 2008−2012, including the acquisition (supply) of birch wood, the income structure, prices of birch wood, the structure of birch wood recipients and the volume of purchased timber. The necessary materials were obtained from the Forest Data Bank (BDL) and the State Forests Information System (SILP). The S2 wood assortment representing more than 54% of all assortment groups is most often harvested in Poland. Next come M1 representing 14%, as well as S4 and WC – each with share slightly exceeding 11%. The vast majority of the harvested and handled birch wood is in the group of medium−sized assortments S representing 66%, and in the group of small−sized assortments M representing 14%. Birch wood classified as large−sized W totals 20%. Similarly, timber assortments from group S2 also generate the largest portion of revenues (over 50% of total revenues from birch wood sales). High fluctuations in the prices of certain groups of birch wood assortments constitute a significant problem from the point of view of both the State Forests and wood consumers. A possible reduction in the supply of wood of this species in the future may deepen this phenomenon. Average sales prices of birch wood on the Polish market are lower than the prices obtained by timber producers in the neighbouring countries. The price differences in favour of foreign timber producers reach up to 20% and relate to roundwood in different quality and size classes. The exceptionally high technical quality of birch wood in our country does not translate to higher prices per cubic meter of raw timber in the domestic turnover. The sharp increase in the demand for a special type of fibres for the manufacture of many products characterized by exceptional strength (i.e. products from polymers) and textiles with special insulating properties, as well as the production of certain grades of paper and board, will stimulate the consumption of birch wood in the future.
    Źródło:
    Sylwan; 2016, 160, 12; 971-980
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wyniki submisji drewna cennego na przykładzie RDLP Krosno
    Submission sale of valuable wood on the example of the Krosno Regional Directorate of the State Forests
    Autorzy:
    Zastocki, D.
    Dobosz, L.
    Moskalik, T.
    Sadowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/972767.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drewno
    sprzedaz
    submisje
    RDLP Krosno
    ceny
    rynek drzewny
    analiza cen
    drewno cenne
    drewno bukowe
    drewno brzozowe
    drewno czeresniowe
    drewno debowe
    drewno jesionowe
    drewno jaworowe
    drewno klonowe
    drewno lipowe
    drewno modrzewiowe
    drewno olszowe
    drewno orzecha
    drewno osiki
    drewno sosnowe
    drewno wiazowe
    submission
    assortment
    valuable wood
    timber market
    Polska
    Opis:
    Sale of valuable wood assortments in the State Forests takes place in submissions and other forms of timber sale. In response to the growing demand for a specific timber, the forest administration of the Krosno Regional Directorate of the State Forests (RDSF) offers customers the ever−increasing amount of high−quality wood for sale in the submission. This has resulted in an increased interest in purchases of large amounts of wood in one place to be processed by veneer wood companies, and at the same time contributed to the promotion of the Podkarpacie region.The paper presents sale results and prices of veneer wood obtained in submissions and in other forms of sale in the territory of the Krosno RDSF in the years 2000−2009. A detailed analysis of the value of sales of valuable wood in submissions and in other forms of sale in individual years allowed to draw conclusions confirming the correctness of the decisions made in choosing such forms of timber sale.
    Źródło:
    Sylwan; 2012, 156, 07; 483-493
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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