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Wyszukujesz frazę "Borecki, R." wg kryterium: Autor

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    Wyświetlanie 1-9 z 9
    Tytuł:
    Aspekty prawne określania wielkości użytkowania przedrębnego
    Legal aspects of determining intermediate cut
    Autorzy:
    Borecki, T.
    Pieniak, D.
    Wójcik, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/973975.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    aspekty prawne
    regulacja uzytkowania przedrebnego
    leśnictwo
    użytkowanie lasu
    użytkowanie przedrębne
    regulacja użytkowania przedrębnego
    forest management planning
    forest utilisation regulation
    intermediate cut
    Opis:
    The article depicts the legal aspects of determining intermediate cut in the State Forests. Analysed methods show a gradual departure from the stand−level management planning to that based on unit larger than a stand in the subsequent versions of the amended forest management planning instruction.
    Źródło:
    Sylwan; 2011, 155, 02; 75-83
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ ciągów komunikacyjnych na wartość drzewostanów
    The impact of roads on the value of forest stands
    Autorzy:
    Borecki, T.
    Piekutin, J.
    Wójcik, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1018621.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany
    oddzialywanie na srodowisko
    zapas rosnacy
    drogi szybkiego ruchu
    wartosc
    lesnictwo
    ciagi komunikacyjne
    przyrost drzew
    value of stand
    anthropopressure
    highway
    Opis:
    Construction and exploitation of every road, even the smallest one, cause changes in the environment. It seems to be important that significant part of existing roads and some part of projected ones go across woodlands. Economic effects of forest environment degradation are not known at present. This paper presents an attempt to analyze the impact of highways on forest stands value.
    Źródło:
    Sylwan; 2006, 150, 10; 39-49
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Realizacja użytkowania przedrębnego w Lasach Państwowych w okresie 1999-2004
    Intermediate harvest realised in the State Forests in the period 1999-2004
    Autorzy:
    Borecki, T.
    Pieniak, D.
    Wójcik, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1006340.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    Panstwowe Gospodarstwo Lesne Lasy Panstwowe
    uzytkowanie lasu
    uzytkowanie przedrebne
    regulacja uzytkowania przedrebnego
    intermediate harvest
    regulation
    expected current volume increment
    Opis:
    Focus of the study was on the economic importance of intermediate harvest regulation. Analysis of the research material concerned mainly the ratio of the intermediate harvest to the expected 50% ten−year current volume increment. Study was realised in Scots pine stands in 337 forest districts all over Poland.
    Źródło:
    Sylwan; 2012, 156, 11; 848-854
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Regionalne zróżnicowanie użytkowania przedrębnego w Polsce
    Regional diversity in intermediate harvest level in Poland
    Autorzy:
    Borecki, T.
    Pieniak, D.
    Wójcik, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1008751.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    RDLP Szczecinek
    lesnictwo
    uzytkowanie lasu
    uzytkowanie przedrebne
    zroznicowanie przestrzenne
    Panstwowe Gospodarstwo Lesne Lasy Panstwowe
    RDLP Bialystok
    RDLP Katowice
    RDLP Krakow
    RDLP Krosno
    RDLP Lublin
    RDLP Lodz
    RDLP Olsztyn
    RDLP Pila
    RDLP Poznan
    RDLP Szczecin
    RDLP Torun
    RDLP Wroclaw
    RDLP Zielona Gora
    RDLP Gdansk
    RDLP Radom
    RDLP Warszawa
    intermediate harvest
    regional differences
    improvement cutting
    Opis:
    Study analyses the regional differences in the level of intermediate harvest in Scots pine stands based on the data obtained from 337 forest districts. Analysis focuses on the impact of natural conditions and regional practices on the intensity of improvement cutting.
    Źródło:
    Sylwan; 2012, 156, 10; 732-740
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analiza wielkości miąższości uzyskanej z inwentaryzacji zapasu metodą obrębową w zależności od różnych wariantów obliczeń
    Analysis of standing volume assessment as conducted in the course of forest stand inventory with use of the Forest Division method depending on applied calculation variants
    Autorzy:
    Borecki, T.
    Pieniak, D.
    Wójcik, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/972920.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    program ACER
    drzewostany
    program TAKSATOR
    zapas drzewostanu
    metody obliczeń
    inwentaryzacja drzewostanów
    leśnictwo
    metoda obrębowa
    miąższość drzewostanów
    standing volume assessment
    forest division based method
    quality control inspection
    Opis:
    In the present paper analyzed are results of standing volume assessment as dependent on the method of calculation applied; the calculations were done with utilization of algorithms used in the operational forestry: the TAKSATOR and the ACER packages. The results obtained show that the use of the forest division based TAKSATOR method leads to lower estimate as compared with the output of the quality control inspection assessment ACER.
    Źródło:
    Sylwan; 2006, 150, 11; 22-29
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Przewidywane oddziaływanie zmian klimatu na ekosystemy leśne oraz ich konsekwencje w urządzaniu lasu
    Expected impact of climate change on forest ecosystems and its consequences in forest management planning
    Autorzy:
    Borecki, T.
    Orzechowski, M.
    Stępień, E.
    Wójcik, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/987172.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    ekosystemy lesne
    urzadzanie lasu
    czynniki klimatyczne
    oddzialywanie na las
    zmiany klimatyczne
    prognozowanie zagrozen
    wydzielanie sie drzew
    plan ciec
    climate change
    forest ecosystems response
    forest management planning
    Opis:
    The paper presents the assessment of possible impact of climate change on forest ecosystems in Poland and its consequences in the forest management planning. Scenarios of climate change in the twenty first century do not allow unambiguous determination of the rate and direction of these changes. However, it is believed that climate change could have negative economic con− sequences, which directly or indirectly will affect the deterioration of the environment. Analysis of the possible forms of the impact of climate change on forest ecosystems is particularly relevant in terms of growth conditions. The most noticeable consequences of the changes will concern the threat to the stability of forest stands resulting from the increase in the intensity of trees dieback caused by different factors. The phenomenon results, among others, from: the occurrence of new threats from biotic factors, including caused by secondary pests and the occurrence of alien species of flora and fauna, the severity of the impact of abiotic factors and the deterioration of health (especially of conifers). The increase in the intensity of the evolution of trees is directly related to the size of the cuts contingent and will lead to a blurring of the boundary between thinning and health−cutting. It is expected that the planned size of the cuts will be implemented mainly in the thinning and accidental cuts. This requires the modification of the perception of the rela− tionship of each category cuts. We propose the order and urgency in the planning of forest use. May be supposed that the role of the clearcutting system will be limited, with the exception of some forest complexes of predominantly productive functions, dominated by poor coniferous habitats. It is recommended to use the natural regeneration in the forest management. Lack of clear boundary between thinning and final cutting will require flexibility in the accounting for the total size of cuts. The consequences of climate change will probably occur in the long term perspective. It can therefore be assumed that reasonably forest management can help to reduce their negative effects. This requires pre−emptive decisions in forest management planning and verification for silviculture, production and protection targets, and their consistent implemen− tation.
    Źródło:
    Sylwan; 2017, 161, 07; 531-538
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Regionalne zróżnicowanie potrzeb i pilności przebudowy drzewostanów
    Regional diversity of the need and the urgency of stands conversion
    Autorzy:
    Stępień, E.
    Kędziora, W.
    Orzechowski, M.
    Wójcik, R.
    Borecki, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/985680.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    drzewostany
    przebudowa drzewostanow
    potrzeby przebudowy
    zroznicowanie regionalne
    regionalne dyrekcje Lasow Panstwowych
    stand classification
    regional heterogeneity
    conversion necessity
    state forests
    Opis:
    Nowadays in forestry, we observe an increase in threats that rise the uncertainty and risk of the forest management. This is caused, inter alia, by increasing intensity of forest and environmental damage as well as by the conflict of expectations for the use of forest resources. As a result, there is a problem of achieving the goals of sustainable development and adaptation of the forest ecosystems to new challenges. The aim of the presented study was to assess the regional variety of the need and the urgency of stands conversion. The feature was determined for all stands of the State Forests older than 20 years. Three assessment criteria were selected: (A) silvicultural target (compatibility of the species composition with the planned one), (B) stands stability (resultant from 5 auxiliary sub−indices), and (C) stock level (including 2 auxiliary sub−indices). The majority of stands has consistent species composition (over 60% in total), however only a small fraction of stands was found with a species composition incompatible with the planned one (average 6.34%). Stands with medium stability accounted for about 70%, while those with poor growing stock status make up about 70% of stands under analysis. The regional diversification of the needs for stands reconstruction seems to be strongly correlated with the incompatibility of stand’s species composition with habitat conditions. The largest fraction of stands requiring conversion was observed in Wrocław, Kraków and Katowice regional directorates of the State Forests. This situation may change in the future due to dynamic changes resulting from modifications of the climate and the deterioration of health condition of dominant Scots pine stands in central and north parts of Poland. Private forests were not taken into consideration in this research. It may impact the overall picture in regions of the high share of private forest ownership.
    Źródło:
    Sylwan; 2019, 163, 04; 267-278
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Drzewostany przejęte z Państwowego Funduszu Ziemi – stan i problemy zagospodarowania
    Forest stands acquired from the State Land Fund – the condition and management problems
    Autorzy:
    Kędziora, W.
    Orzechowski, M.
    Wójcik, R.
    Wrzosek, E.
    Borecki, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/985718.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy prywatne
    grunty lesne
    przejmowanie gruntow
    zagospodarowanie lasu
    fragmentacja lasu
    Nadlesnictwo Siedlce
    Panstwowy Fundusz Ziemi
    private forests
    land transfer
    forest fragmentation
    Opis:
    In this paper, we present problems with the management of the forests acquired by the State Forests from the State Land Fund. This was particularly an issue in forest districts with a significant share of private forests, e.g. eastern part of Poland. The problem becomes more and more valid because of the latest amendment of the Forest Act in 2016. It gives the State Forests the right of the first purchase of private forests attributed to sale. They may receive forest stands that will generate specific economic problems related to care, conservation, felling maintenance, etc. These are mostly stands with typical features of private forests, resulting from abandoning economic operations, selective acquisition, as well as from the size, shape and neighbourhood of the plots. This study presents the characteristics of almost 2,000 tree stands acquired from the State Land Fund between 1992−2016 by the Siedlce Forest District (SFD), which is a part of the Regional Directorate of the State Forests in Warsaw. SFD has low forest cover (18%), a strong fragmentation of forest complexes and a very large share of private forests (over 75%). The analysis was based primarily on the descriptions of forest stands and the quantitative and qualitative characteristics, presenting at the same time the problems that SFD has with conducting rational forest management in acquired plots. The current status of the forests transferred from the State Land Fund was assessed as unsatisfactory. The main problems in local conditions are: (i) inadequate fixation in acquired parcels next to private forests (difficulty in locating treatments and custody over the State property), (ii) depleted tree stands, (iii) inadequate parcels (too narrow) and (iv) complications related to co−ownership of parts seized plots. The need to carry out joint−assembly works (mainly land consolidation) or to introduce land communities that would facilitate the management of these forests was demonstrated.
    Źródło:
    Sylwan; 2019, 163, 08; 665-674
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelowanie wielkości użytkowania rębnego drzewostanów w zależności od przyjętych metod prognozowania rozwoju lasu
    Modelling of the size of allowable cutting based on adopted methods of forest development forecast
    Autorzy:
    Szyc, K.
    Borecki, T.
    Stępień, E.
    Kędziora, W.
    Konieczny, A.
    Orzechowski, M.
    Wójcik, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/979061.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    forestry use
    forest development
    modelling of usage regulation
    Opis:
    Many attempts have been made to develop a strategy for regulating forest use consistent with the multifunctional forest model. In this paper we present two proprietary methodologies of regulation of the allowable cutting size in a multifunctional forest in the 60−year time perspective. We assumed that all restrictions of nature protection and non−productive functions of the forest would still be in force. We based the first method on age class tables (TKW), which is faster but less exact in terms of spatial order of felling. The tree stand method (D−STAN) is based on stands spatial order and the cutting direction basis. In both cases, we based the temporal felling order on species rotation age. Comparing the results, we noticed that they present similar trends in the age structure of tree stands in younger age classes. The main discrepancies of the forecast concerns the share of forest stands in a complex structure: the TKW method gave approximately 12,4%, while the D−STAN one produced 5,1%. The latter approach shows that much smaller areas of stands are used for reconstruction. That marker is influenced by the spatial order of cutting used in the D−STAN model. In conclusion, we suggest to return to the big−area clear−cutting system on fresh coniferous habitats. Medium−area clear−cuttings should be brought back on the least fertile fresh mixed coniferous forests and possibly even fresh mixed deciduous forests.
    Źródło:
    Sylwan; 2020, 164, 04; 280-291
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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