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    Wyświetlanie 1-3 z 3
    Tytuł:
    Naziemne inwentaryzacje szkód w polskich lasach powodowanych przez przemysłowe zanieczyszczenia powietrza w latach 1970-2009
    Ground inventory of damages in Polish forests caused by air contamination in years 1970-2009
    Autorzy:
    Jaszczak, R.
    Gołojuch, P.
    Niziołek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/973925.pdf
    Data publikacji:
    2011
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    zanieczyszczenia powietrza
    szkody w lesie
    imisje przemyslowe
    lasy
    inwentaryzacja wielkopowierzchniowa
    monitoring techniczny
    monitoring biologiczny
    zanieczyszczenia przemysłowe
    oddziaływanie na las
    strefy uszkodzeń lasu
    damage zones
    endangered zones
    degree of damage
    large−area inventories
    technical monitoring
    biological monitoring
    industrial imissions
    Opis:
    In Poland, since 1970, the impact of the industrial air contamination on forests was determined during the management work in individual forest districts. For that purpose, various methods were employed published in successive forest management instructions (1970, 1980, 1994 and 2003). Within the framework of large−area inventories, since 1983, forest health and sanitary conditions were also determined on the entire area of Poland (1983, 1985, 1988, 1991, 1999−2001, 2005−2009). The size of imissions reaching stands was assessed on the basis of the so−called technical monitoring carried out jointly by the Office of Forest Management and Forest Geodesy and Forest Research Institute. The aim of the study is to present a short historical outline as well as to review advantages and disadvantages of the applied methods and their significance for Polish forestry.
    Źródło:
    Sylwan; 2011, 155, 10; 687-701
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Urządzanie i monitoring lasu a ustalanie stref uszkodzenia lasu i stopni uszkodzenia drzewostanów
    Forest management and monitoring versus establishment of forest damage zones and degrees of stand damage
    Autorzy:
    Gołojuch, P.
    Beker, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/989694.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    lasy
    monitoring
    uszkodzenia drzewostanow
    strefy uszkodzen lasu
    stopien uszkodzenia
    zagrozenia lasu
    forest damage
    management
    Opis:
    In years 1970−2002, in Poland forest damage zones were distinguished within the framework of forest management works. Since 2003 degrees of stand damage have been determined. This study presents basic characteristics of the methods employed for these purposes concerning the necessity to elaborate a new method of determination of degrees of stand damage. The establishment of forest damage zones and degrees of stand damage cannot be treated as one of the forms of monitoring because in order to determine their range, no observations on the permanent plots and – within their confines – on the same sample trees were and are carried out. Over the time, evaluation criteria or/and ways of establishment of the extent of damages have been undergoing considerable and significant methodological changes and modifications. In terms of dynamically altering quantitative and qualitative impact of different factors affecting forest environment, 10 years period of observation repeatability is far too long to use this information as an indicator of occurring changes. In practice, it was and it still is impossible to determine objectively trends and directions of changes taking place in a given object, which is one of the objectives of forest monitoring. The concept of damage zone should be understood not only as an area of grouping the stands of the same or similar damage, but, equally importantly, as those which happen to be under the influence of the same factor exerting its influence at the same level. Therefore, when determining the range of zones, the following three actions should be taken into consideration simultaneously: complex crown evaluation, dendrometric measurements and monitoring of the effect of the causative agent. In order to trace the trends of the changes on the study plots, the same sample trees must be subjected to evaluations and measurements. From the point of view of the time perspective, examinations should be carried out every 5 years (assessment of the crown condition and dendrometric measurements) or on a continuous basis (monitoring of the effect of the causative agent) irrespective of the forest taxation. It is also advisable to consider possible use of contemporary remote sensing techniques to determine the range of zones and degrees of damage, which preliminary can be used to establish the range, intensity and kind of the damages.
    Źródło:
    Sylwan; 2015, 159, 01; 13-21
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wskaźnik uszkodzenia koron sosny (Pinus sylvestris L.) III i IV klasy wieku a ustalanie stref uszkodzenia lasu
    Damage index of Pine (Pinus sylvestris L.) crowns of the 3rd and 4th age classes and the determination of forest damage zones
    Autorzy:
    Jaszczak, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1022788.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    drzewostany sosnowe
    uszkodzenia korony
    klasy wieku
    strefy uszkodzen lasu
    wskaznik uszkodzenia korony
    sosna zwyczajna
    monitoring
    lesnictwo
    Pinus sylvestris
    drzewa lesne
    scots pine
    damage index
    damage zone
    age class
    Opis:
    In years 2002 and 2003, pairs of test plots were established in pine stands of the 3rd and 4th age classes of selected forest divisions. The crown condition of 25 trees from the main stand was assessed on each plot employing the so called stand method. Damage indices were calculated for each test plot, which were used to assign individual stands to the appropriate damage zone. The presence or lack of statistically significant differences of damage indices was checked and this was referred to the membership of individual stand pairs in damage zones. The proportions of damage zones determined according to two divisions for the 3rd, 4th and, jointly, for the 3rd and 4th age classes in both years of observations were compared.
    Źródło:
    Sylwan; 2005, 149, 11; 25-36
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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