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Wyszukujesz frazę "Sadowski, M" wg kryterium: Wszystkie pola

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Produkcja węgla drzewnego na przykładzie RDLP Krosno
    Charcoal production on the example of the Krosno RDSF
    Autorzy:
    Zastocki, D.
    Sadowski, J.
    Moskalik, T.
    Oktaba, J.
    Janik, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/985977.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    RDLP Krosno
    uboczne uzytkowanie lasu
    wegiel drzewny
    weglarstwo lesne
    nadlesnictwa
    wielkosc produkcji
    charcoal burning
    bieszczady mountains
    adjustable retorts
    efficiency
    Opis:
    The burning of wood in the Bieszczady Mountains (SE Poland) began to play a significant role with first settlements in this region in the 17th and 18th centuries. Large beech wood resources were the main reason for such a high charcoal production in this part of Poland. The role of charcoal production in the Bieszczady region is reflected in the names of villages such as Smolnik (Tar), Potasznia (Potash) and Mielerzysko (Charcoal Pile). The aim of this paper is to present the scope and volume of charcoal production in forest districts located in the territory of the Krosno Regional Directorate of State Forests (RDSF) in 2008−2013. It also identifies the number of companies dealing with charcoal production as well as the efficiency and amount of burned charcoal calculated on the basis of the quantity of purchased wood. The verification of the information about the locations of charcoal burning concerned all 26 forest districts of the Krosno RDSF. Charcoal burning bases were identified in the following forest districts: Baligród, Bircza, Cisna, Dukla, Komancza, Lutowiska, Rymanów and Stuposiany. Most bases were located in the territory of the Lutowiska ranging from 5 to 7 in the analysed period. Slight changes in the number of charcoal burning bases were found in the Cisna forest district, where initially there were 5 companies involved in charcoal production, while in 2009−2010 their number increased to 6 entities. In the Stuposiany forest district 5 bases of charcoal burning run by two companies were identified, and in the Baligród and Komańcza forest districts four charcoal burning bases operated in each of them. In the Dukla forest district, two companies dealing with charcoal production were identified in 2008−2009, one in 2010−2012, while in 2013 no such entity was found. In the Bircza and Rymanów forest districts, only one charcoal burning base operated at that time. In 2008−2013, the number of bases located in the research area slightly decreased from 29 to 25, and the amount of produced charcoal decreased from 7372.4 to 3855.6 tonnes sold mainly in Bieszczady and part of the Lublin region. A significant drop in production was not the result of a decrease in demand; it was rather associated, inter alia, with the import of cheaper charcoal from abroad.
    Źródło:
    Sylwan; 2018, 162, 10; 837-843
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pozyskanie drewna w nadleśnictwach Puszczy Białowieskiej w latach 2008-2015
    Harvest of timber in forest districts of the Bialowieza Forest in 2008-2015
    Autorzy:
    Zastocki, D.
    Lachowicz, H.
    Sadowski, J.
    Moskalik, T.
    Nietupska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/985925.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Puszcza Bialowieska
    gospodarka lesna
    nadlesnictwa
    pozyskiwanie drewna
    sortymenty drewna
    lata 2008-2015
    białowieża forest
    cutting categories
    assortments
    nature−valuable areas
    Opis:
    The paper presents a multifaceted structure of timber harvest in 2008−2015 in the Białowieża, Browsk and Hajnówka forest districts located in the Białowieża Forest. The object of the research, including the Białowieża National Park being a remnant of the primeval forests, is considered one of the most valuable forest areas of natural origin in Europe. The studies were made on the basis of the data from the reports created by the State Forests Information System and forest management plans, as well as the nature conservation programs of the surveyed forest districts. In the analysed period, a total of 665,032.5 m3 of merchantable timber was harvested in the analysed area. The highest volume of merchantable timber was harvested in the Browsk Forest District – 305,934 m3 (46%), then in the Hajnówka Forest District – 219,300 m3 (33%), with the lowest volume harvested in the Białowieża Forest District 139,788 m3 (21%). Among the individual assortment groups, the medium−sized timber was the most common and its harvested volume amounted to 413,579 m3, while the harvested volume of large−sized timber amounted to 251,454 m3. The lowest harvested volume concerned the small−sized timber and amounted to 21,652 m3. In the analysed period, softwood had the largest share in timber harvest and amounted to 443,469 m3. Hardwood was obtained in the volume of 243,215 m3. According to the cutting category, the timber harvest structure was as follows: the highest volume was harvested in pre− commercial thinning 382,495 m3 (54%), that from incidental felling amounted to 251,003 m3 (38%), while the lowest volume of harvested timber was from final cutting – 53,186 m3 (8%). Forest districts located in the Białowieża Forest encounter many difficulties affecting timber harvest. The main reason for this lies in the numerous restrictions imposed on the management of areas covered by various forms of nature protection, including the exclusion of some habitats, or stands of 100 years of age and older from management, which significantly affects the yield. The lack of a determined rotation age for stands in the Białowieża Forest also has a significant impact on timber harvest.
    Źródło:
    Sylwan; 2018, 162, 11; 941-948
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sprzedaż drewna w nadleśnictwach Puszczy Białowieskiej w latach 2008-2015
    Sale of timber in forest districts of the Bialowieza Forest in 2008-2015
    Autorzy:
    Lachowicz, H.
    Zastocki, D.
    Sadowski, J.
    Moskalik, T.
    Nietupska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/985928.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Puszcza Bialowieska
    gospodarka lesna
    nadlesnictwa
    Nadlesnictwo Bialowieza
    Nadlesnictwo Browsk
    Nadlesnictwo Hajnowka
    surowce drzewne
    drewno
    sortymenty drewna
    sprzedaz drewna
    bialowieża forest
    timber sales
    assortment and species structure
    Opis:
    The structure of timber sales in forest districts of the Białowieża Forest in the years 2008−2015 is presented. The Białowieża Forest is one of the most valuable natural areas in Europe. The data from the reports generated by the State Forests Information System of the Hajnówka, Browsk and Białowieża forest districts were used for the research. The information contained in the forest management plans and nature conservation programs of the surveyed forest districts was also used. The volume of the sold merchantable timber in the Białowieża Forest amounted to 669,072 m3, of which 63.43% was softwood and 36.57% hardwood. Among the softwood assortment, sales of the large−sized timber amounted to 44.42%, while of the medium−sized timber to 55.58%. For the large−sized hardwood, the share of sales amounted to 30.66%, while for the medium−sized hardwood to 69.34%. The small−sized timber was sold at 22,389 m3, with the share of hardwood assortments being 82%, and of softwood 18%. A small share in the sales of small−sized timber is caused by the lack of FSC certification by forest districts, which excludes large industrial companies that buy predominantly the medium−sized coniferous timber assortments. The average price obtained from the sale of timber in the the Białowieża Forest in the analysed period was 134.7 PLN/m3. At a price higher than the average, wood was sold in the Białowieża and Hajnówka forest districts, while in the Browsk Forest District the timber was sold at a price lower than the average. The total volume of merchantable timber harvested in the forest districts of the Białowieża Forest in the analysed years, including the small−sized timber, amounted to 686,684 m3, with 691,461 m3 of timber being sold. The volume of the merchantable timber sold at that time was 669,072 m3, which constituted only 0.24% of the total timber sold at the State Forests in Poland.
    Źródło:
    Sylwan; 2018, 162, 11; 949-954
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Charakterystyka masy tuszy i poroży byków jeleni (Cervus elaphus L.) bytujących w Lasach Spalskich i Lasach Gostynińsko-Włocławskich w Polsce centralnej
    Characteristics of body and antlers mass of red deer stags (Cervus elaphus L.) inhabiting Spalskie Forest and Gostyninsko-Wloclawskie Forest in Central Poland
    Autorzy:
    Nasiadka, P.
    Kowalski, M.
    Sadowski, B.
    Wojtan, R.
    Merta, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/989338.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lowiectwo
    Lasy Spalskie
    Lasy Gostyninsko-Wloclawskie
    zwierzeta lowne
    jelen europejski
    Cervus elaphus
    byki
    masa tuszy
    masa poroza
    cervus elaphus
    body mass
    antlers
    mass
    central poland
    Opis:
    The aim of the study was to demonstrate how the trophy quality of antlers of the red deer stags living in two large forest complexes in the Mazowsze region (central Poland) differs from those inhabiting other regions of the country. The study used the data describing the body and antlers weight of 272 stags shot in 2005−2014 in two large, separated from each other, forest complexes of Spała and Gostynin. The stags from both forest complexes do not differ from each other in body weight and antler forms. The average body weight of the stags at the age of 12 is approximately 120−140 kg. The characteristics of antler forms of the stags harvested by hunters may not reflect the actual state because of the use, in practice, of the selection criteria instead of random killing. The most frequently harvested antler forms of the selection stags in the age classes of 3−5 years and 6−8 years are regular eight−pointers and irregular twelve−pointers, respectively. However, the small sample size used and the specific rules of harvesting the older stags do not allow to characterize the antler forms of the stags older than 9 years. In the autumn−winter period, a decrease in the body weight of the rutting stags at the age of over 6 years, as well as of the young, 2−5−year−old, stags is observed. The loss in body weight in young stags is approximately 20%, while in older stags – 35%. The decrease in body weight in the autumn−winter period is not stable. The largest, representing nearly 50% of the total weight loss, was recorded after the rut. In the period between November and December even a slight increase in body weight was noted followed again by a decline by the end of the winter.
    Źródło:
    Sylwan; 2016, 160, 09; 777-788
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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